Intelligent seal supervision device

Abstract

The utility model relates to an intelligent seal supervision device, including shell body, fixed entity seal fixed sleeve of entity seal, drive mechanism, transmission mechanism, detection unit and treater. Entity seal fixed sleeve sets in the lower part of the cavity of shell body. Drive mechanism, transmission mechanism and treater are oppositely arranged in the upper part of the cavity of shell body, and can be associated with matched control entity seal fixed sleeve relative to the shell body and realize the action purpose of lifting movement. Detection unit is connected with treater, and is fixed between the inner wall of the cavity of shell body and the wall of entity seal fixed sleeve, and can monitor the distance size of the lower end surface of entity seal fixed sleeve and the lower port of shell body. The utility model can realize effective monitoring to the moving stroke of entity seal, and is helpful to improve the supervision level of the authenticity of effective seal action.

Description

Technical Field

[0001] This utility model relates to the field of seal management technology, specifically to an intelligent seal monitoring device. Background Technology

[0002] Existing seal management devices mostly control the use of physical seals through cameras, biometric terminals, etc., and can be remotely managed, effectively improving the security of physical seal usage. In existing seal management technologies, the physical seal is often housed in an outer casing, with associated transmission and drive mechanisms installed within the casing to selectively expose and retract the seal's stamp face. Furthermore, some seal management devices also include a locking mechanism within the casing, connected to a control terminal, biometric identification terminal, and / or key terminal. This locking mechanism selectively locks / locks and releases the moving parts on the transmission mechanism, controlling its ability to perform transmission actions. This ensures that without authorization / permission, the stamp face cannot be driven out of the casing by the drive mechanism to complete the stamping action. See also the patent documents CN114571883B, entitled "A Seal Management Device", and CN107487092B, entitled "Smart Seal". The technical solutions disclosed in these patent documents are that the physical seals can move up and down in the vertical direction, and can selectively expose the seal surface on the physical seal to the lower port of the outer shell to complete the stamping operation, and keep the seal surface in a state of being retracted into the lower port of the outer shell.

[0003] However, existing seal management devices, even those equipped with biometric identification features (such as fingerprint, facial, and voice recognition), cameras, and controllers, and connected to the Internet of Things to form intelligent seal management devices, can only remotely lock and unlock the seal and control and record the seal-stamping action. They cannot monitor whether a valid stamping action has been completed, i.e., they cannot monitor whether the seal's surface has fully moved out of the outer casing during the stamping action. If the user does not apply sufficient force, or the pressure is insufficient, or if the transmission mechanism malfunctions and cannot function properly, the seal's surface may not fully move out of the outer casing (lower port). In this case, although the seal-stamping action appears to have been performed / completed, a valid stamp has not actually been achieved, resulting in distorted supervision / monitoring of seal usage and creating security vulnerabilities in seal management. Utility Model Content

[0004] To overcome the above problems, this utility model provides an intelligent seal monitoring device that can effectively monitor the movement of a physical seal, which helps to improve the level of supervision over the authenticity of valid stamping actions.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an intelligent seal monitoring device, including an outer shell, a seal fixing sleeve with a physical seal fixedly mounted thereon, a drive mechanism, a transmission mechanism, a detection unit, and a processor. The processor may include all or more of the following: a power module, an analysis and processing module, a biometric data entry module, a communication module, and an alarm module, and may also contain other functional modules. The drive mechanism and the detection unit are respectively connected to the processor.

[0006] The solid stamp is fixedly sleeved on the lower part of the cavity of the outer shell. The drive mechanism, the transmission mechanism, and the processor are respectively disposed on the upper part of the cavity of the outer shell, and can be matched to realize the purpose of controlling the solid stamp fixing sleeve to move up and down relative to the outer shell. That is, the processor can drive the transmission mechanism to move by controlling the power on and off state of the drive mechanism, so as to make the solid stamp fixing sleeve move up and down relative to the outer shell in the vertical direction.

[0007] The drive mechanism may include a drive motor and an elastic reset unit, which cooperate to control the operation of the transmission mechanism, thereby controlling the reciprocating movement of the solid seal fixing sleeve relative to the outer shell. Alternatively, the drive mechanism may consist only of a drive motor, controlling the forward and reverse rotation of the drive motor to control the operation of the transmission mechanism, thus achieving the reciprocating movement of the solid seal fixing sleeve relative to the outer shell.

[0008] The detection unit is fixedly disposed between the inner wall of the cavity of the outer shell and the outer wall of the solid stamp fixing sleeve. It can monitor in real time the distance between the lower end face of the solid stamp fixing sleeve and the lower port of the outer shell as the solid stamp fixing sleeve moves relative to the outer shell. In other words, the detection unit is arranged in the setting direction with its upper end fixed to the inner wall of the cavity of the outer shell and its lower end fixed to the outer wall of the solid stamp fixing sleeve, enabling real-time monitoring of the distance between the lower end face of the solid stamp fixing sleeve and the lower port of the outer shell as the solid stamp fixing sleeve moves up and down relative to the outer shell.

[0009] Optionally, the detection unit includes at least one sensing mechanism containing a telescopic frame, an elastic band, and a sensing element.

[0010] The upper end of the telescopic frame is fixedly connected to the inner wall of the cavity of the outer shell, and the lower end is fixedly connected to the outer wall of the solid stamp fixing sleeve, so that it can expand and contract during the reciprocating movement of the solid stamp fixing sleeve relative to the outer shell.

[0011] The two ends of the elastic band are fixed to the upper and lower sides of the telescopic frame, respectively, and can produce elastic deformation as the telescopic frame expands and contracts.

[0012] The sensitive or movable part of the sensing element is fixed to the elastic band and can generate changes in biophysical quantities during the elastic deformation of the elastic band, thereby enabling the sensing element to provide real-time feedback of sensing signals to the processor. The main body of the sensing element can be fixed to the telescopic frame or the inner wall of the outer casing.

[0013] Optionally, the detection unit includes multiple sensing mechanisms and the multiple sensing mechanisms are distributed alternately around the circumference.

[0014] The upper end of the telescopic frame in each sensing mechanism is fixedly connected to the inner wall of the cavity of the outer shell, and the lower end is fixedly connected to the outer wall of the solid stamp fixing sleeve. This allows multiple telescopic frames to expand and contract synchronously during the reciprocating movement of the solid stamp fixing sleeve relative to the outer shell. Consequently, the elastic bands set on each telescopic frame can elastically deform synchronously with the expansion and contraction of their respective matched telescopic frames. This enables the sensing elements fixed on each elastic band to simultaneously generate physical quantity changes and feed back sensing signals to the processor.

[0015] Optionally, the telescopic frame includes a fixed U-shaped frame and a movable U-shaped frame. The fixed U-shaped frame is positioned above the movable U-shaped frame, with the two arms of the fixed U-shaped frame facing each other and matched by a linear slide rail structure, allowing the two U-shaped frames to slide relative to each other, thus enabling the telescopic frame to be lengthened and shortened.

[0016] The crossbar on the fixed U-shaped frame is fixedly connected to the inner wall of the outer shell, and the crossbar on the movable U-shaped frame is fixedly connected to the outer wall of the solid seal fixing sleeve. The movable U-shaped frame becomes the active component that can move with the solid seal fixing sleeve, while the fixed U-shaped frame becomes the passive component, i.e. the fixing component, in the process of the telescopic frame changing length.

[0017] A first horizontal arm is provided between the two arms of the fixed U-shaped frame and on the side closest to its crossbar, and a second horizontal arm is provided between the two arms of the movable U-shaped frame and on the side closest to its crossbar. The two ends of the elastic band are fixed to the first horizontal arm and the second horizontal arm, respectively, and the end of the elastic band fixed to the movable U-shaped frame is the active moving end.

[0018] Optionally, the sensing element includes a strain gauge sensor, and the sensitive part of the sensing element is a strain gauge. The strain gauge is fixedly mounted on an elastic band.

[0019] Optionally, the sensing element includes a capacitive sensor, and the moving part of the sensing element is a dielectric body. One end of the dielectric body is fixed to an elastic band, and the other end is a free end that extends into the body of the capacitive sensor.

[0020] When the elastic band undergoes elastic deformation, one end of the dielectric body moves / changes in position as the elastic band expands and contracts. This causes a change in the length of the dielectric body protruding into the free end of the capacitive sensor body. This change in length alters the dielectric material between the two opposing capacitor plates / capacitor cylinders, ultimately leading to a change in the capacitive sensing signal.

[0021] Optionally, it also includes a transmission body fixed to the upper end of the solid stamp fixing sleeve, and multiple reset mechanisms matched on the inner wall of the outer shell. The upper end of the transmission body matches the output end of the transmission mechanism, so that the transmission mechanism can push the transmission body and the solid stamp fixing sleeve to move downward relative to the outer shell synchronously.

[0022] An outer radial flange is formed on the upper part of the transmission body, and multiple multi-stage through holes are distributed on the outer radial flange that correspond one-to-one with the reset mechanism, and the axial direction of the multi-stage through holes is along the vertical direction.

[0023] The inner diameter of the multi-stage through hole decreases in a stepwise manner from top to bottom, and an internal thread surface is formed at the lower part of the multi-stage through hole.

[0024] The reset mechanisms are distributed alternately around the periphery of the transmission body, and each includes a guide rod, a solenoid, and a spring body.

[0025] The lower end of the guide rod is fixed to the inner radial flange formed on the inner wall of the outer casing, and the upper end extends upward for a certain length after passing through multiple through holes.

[0026] The solenoid is fitted onto the guide rod, with its lower part extending into the multi-stage through hole and its lower end extending out of the multi-stage through hole. The middle part of the outer wall of the solenoid can match the internal thread surface on the multi-stage through hole, allowing the height position of the solenoid relative to the outer radial flange to be adjusted.

[0027] The spring body is fitted onto the guide rod, with its upper and lower ends corresponding to the lower part of the solenoid and the upper end of the inner radial flange, respectively. Tightening the solenoid adjusts the initial compression state of the spring body.

[0028] Optionally, to improve the guiding effect of the guide rod on maintaining a straight path when the transmission body moves vertically, the inner wall of the solenoid is formed into a cylindrical smooth surface; correspondingly, at least the outer peripheral surface of the upper part of the guide rod is formed into a cylindrical smooth surface, and the inner diameter of the cylindrical smooth surface on the solenoid is consistent with the outer diameter of the cylindrical smooth surface on the guide rod.

[0029] Optionally, the axial length of the spiral tube is greater than the axial length of the multi-stage through hole, and the inner diameter of the upper part of the multi-stage through hole is greater than the maximum outer diameter of the spiral tube.

[0030] Optionally, an axial flange is formed at the lower part of the solenoid, and the outer diameter of the axial flange is smaller than the outer diameter of the solenoid body. The outer diameter of the solenoid body is larger than the outer diameter of the spring body, and the upper end of the spring body is fitted onto the axial flange.

[0031] The beneficial effects of this utility model are: This utility model can effectively monitor the movement distance of the stamp face on the physical stamp relative to the lower port of the outer shell, and can judge whether the stamp face has moved sufficiently outside the lower port of the outer shell during the stamping action. This helps to improve the level / ability of supervision over the authenticity of the stamping action, helps to suppress the occurrence of supervision / monitoring distortion, and prevents related (use) security vulnerabilities in the management of stamp usage. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the initial / original state when the solid stamp fixing sleeve, transmission body, etc. are assembled in the lower part of the cavity of the outer shell.

[0033] Figure 2 This is a structural diagram illustrating the connection between the telescopic frame, elastic band, strain gauge, etc.

[0034] Figure 3 This is a schematic diagram showing the state when the transmission body is subjected to a force, causing the solid seal fixing sleeve to move downward relative to the outer shell.

[0035] In the diagram: 10 Outer shell, 11 Lower port, 12 Slot, 13 Inner radial flange, 14 Narrowing section; 20 Solid stamp fixing sleeve, 21 Annular flange; 30 Detection unit, 31 Telescopic frame, 311 End block one, 312 End block two, 32 Elastic band, 321 Strained body, 33 Fixed U-shaped frame, 331 Cross arm one, 34 Movable U-shaped frame, 341 Cross arm two, 35 Flange plate, 36 Limiting block; 40 Transmission body, 41 Outer radial flange, 411 Multi-stage through hole; 50 Reset mechanism, 51 Screw tube, 52 Guide rod, 53 Spring body. Detailed Implementation

[0036] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] like Figures 1 to 3 The intelligent seal monitoring device shown includes a housing 10, a seal fixing sleeve 20 with a physical seal fixedly mounted thereon, a drive mechanism, a transmission mechanism, a detection unit 30, and a processor. The drive mechanism and the detection unit 30 are respectively connected to the processor. The processor may include all or more of the following: a power module, an analysis and processing module, a biometric data entry module, a communication module, and an alarm module, and may also include other functional modules (refer to existing technology).

[0038] The solid stamp fixing sleeve 20 is disposed opposite to the lower part of the cavity of the outer shell 10, and is matched between the two by a track structure arranged in the vertical direction to ensure that the solid stamp fixing sleeve 20 can move stably and reliably relative to the outer shell 10, that is, move in a straight line in the vertical direction.

[0039] The drive mechanism, the transmission mechanism, and the processor are disposed opposite each other on the upper part of the cavity of the outer shell 10. The processor can drive the transmission mechanism to move and change the mechanism state by controlling the on and off state of the drive mechanism, so that the solid stamp fixing sleeve 20 moves up and down relative to the outer shell 10 in the vertical direction. That is, the (power) input end and (power) output end of the transmission mechanism are respectively connected to the drive mechanism and the solid stamp fixing sleeve 20, and can push and pull the solid stamp fixing sleeve 20 relative to the outer shell 10 during the cyclical changes in the structure / mechanical form of the transmission mechanism. A constricted portion 14 is formed on the inner wall of the outer shell 10 and above the lower port 11. Correspondingly, an annular flange 21 is formed at the lower end of the outer wall of the solid stamp fixing sleeve 20, and the outer diameter of the annular flange 21 is larger than the inner diameter of the constricted portion 14. Thus, when the solid seal fixing sleeve 20 is retracted into the outer shell 10, the annular flange 21 is blocked by the constricted portion 14, thereby limiting the end of its upward movement. The opposing end faces of the annular flange 21 and the constricted portion 14 can be configured to form a surface contact match. The implementation of this technical content can refer to the prior art, so it will not be described in detail here.

[0040] In this application, the detection unit 30 is fixedly disposed between the inner wall of the cavity of the outer shell 10 and the outer wall of the solid stamp fixing sleeve 20. During the lifting and lowering movement of the solid stamp fixing sleeve 20 relative to the outer shell 10, the detection mechanism of the detection unit 30 is caused to change (state), thereby enabling the monitoring of the distance between the lower end face of the solid stamp fixing sleeve 20 and the lower port of the outer shell 10.

[0041] The detection unit 30 includes at least one sensing mechanism comprising / including a telescopic frame 31, an elastic band 32, and a sensing element. For example... Figure 1, Figure 3 The illustrated embodiment includes a pair of sensing mechanisms arranged left-right opposite each other. The sensing elements in the two sensing mechanisms can be connected together and then connected to a processor; alternatively, the sensing elements in the two sensing mechanisms can be connected separately to the processor, which processes the sensing signals fed back by the two sensing elements respectively.

[0042] After processing the sensor signal, the processor can convert it into the amount of downward movement of the lower end face of the physical seal fixing sleeve 20. By comparing the amount of downward movement with the vertical distance between the lower end face of the physical seal fixing sleeve 20 and the lower port 11 of the outer shell 10 in the initial state, it can be determined whether the lower end face (i.e. the seal face) of the physical seal fixing sleeve 20 has moved sufficiently to the lower port 11, that is, whether a real and effective stamping action has been completed.

[0043] The upper end of the telescopic frame 31 is fixedly connected to the inner wall of the cavity of the outer shell 10, and the lower end is fixedly connected to the outer wall of the solid seal fixing sleeve 20, so that the telescopic frame 31 can expand and contract during the reciprocating movement of the solid seal fixing sleeve 20 relative to the outer shell 10, that is, the frame of the telescopic frame 31 can extend and shorten, producing reciprocating changes.

[0044] The two ends of the elastic band 32 are fixed to the upper and lower sides of the telescopic frame 31, respectively, and can elastically deform as the telescopic frame 31 (its frame body) expands and contracts. When the elastic band 32 lengthens, its elastic force causes the telescopic frame 31 to return to its shortened initial state after stretching. Therefore, by arranging multiple sensing mechanisms, the elastic bands 32 in these multiple sensing mechanisms can simultaneously cause the telescopic frame 31 to complete its reset, optimizing the distribution of the (elastic) force driving the telescopic frame 31 to complete its reset. This ensures that the reset action of the telescopic frame 31 matches well with the lifting and lowering action of the solid seal fixing sleeve 20, suppressing adverse situations such as jamming and vibration.

[0045] The sensitive part or movable part of the sensing element is fixed on the elastic band 32 and can generate physical quantity changes during the elastic deformation of the elastic band 32, thereby enabling the sensing element to feed back sensing signals to the processor in real time, which helps to achieve the purpose of monitoring the distance between the lower end face of the solid seal fixing sleeve 20 and the lower port of the outer shell 10.

[0046] When the detection unit 30 includes multiple sensing mechanisms, these multiple sensing mechanisms need to be arranged alternately around the circumference. Simultaneously, the upper end of the telescopic frame 31 in each sensing mechanism is fixedly connected to the inner wall of the cavity of the outer shell 10, and the lower end is fixedly connected to the outer wall of the solid stamp fixing sleeve 20. This allows the multiple telescopic frames 31 to synchronously expand and contract during the reciprocating movement of the solid stamp fixing sleeve 20 relative to the outer shell 10. Consequently, the elastic bands 32 respectively provided on each telescopic frame 31 can synchronously deform elastically with the expansion and contraction of their respective matched telescopic frames 31, achieving the purpose of enabling the sensing elements fixed on each elastic band 32 to simultaneously generate physical quantity changes and feed back sensing signals to the processor. The sensing elements provided in the multiple sensing mechanisms can be connected in some way and then connected to the controller, or they can be connected to the controller separately.

[0047] The telescopic frame 31 includes a fixed U-shaped frame 33, a movable U-shaped frame 34, and flange plates 35 fixedly mounted on the crossbars of the two U-shaped frames respectively. The fixed U-shaped frame 33 is positioned above the movable U-shaped frame 34, with its two arms aligned with the two arms of the movable U-shaped frame 34 and matched by a linear slide rail structure. An end block 311 is fixedly mounted on the flange plate 35 fixedly mounted on the crossbar of the movable U-shaped frame 34, and the movable U-shaped frame 34 is fixedly connected to the wall of the solid seal fixing sleeve 20 through the end block 311. An end block 312 is fixedly mounted on the flange plate 35 fixedly mounted on the crossbar of the fixed U-shaped frame 33, and the fixed U-shaped frame 33 is fixedly connected to the inner wall of the outer shell 10 through the end block 312. Thus, when the solid seal fixing sleeve 20 moves downwards / towards the lower port 11 of the outer shell 10, the solid seal fixing sleeve 20 can slide relative to the fixed U-shaped frame 33 along with the movable U-shaped frame 34, thereby allowing the telescopic frame 31 composed of the fixed U-shaped frame 33 and the movable U-shaped frame 34 to lengthen. Figure 1 , Figure 3 The vertical length of the telescopic frame 31 changes in the shown state. This allows the two arms of the movable U-shaped frame 34 to be inserted between the two arms of the fixed U-shaped frame 33, and a linear sliding groove structure is provided between two or more closely spaced arms to allow the arms of the two U-shaped frames to slide relative to each other.

[0048] A first horizontal arm 331 is provided between the two arms of the fixed U-shaped frame 33 and on the side near its crossbar, and a second horizontal arm 341 is provided between the two arms of the movable U-shaped frame 34 and on the side near its crossbar. The two ends of the elastic band 32 are respectively fixed to the first horizontal arm 331 and the second horizontal arm 341.

[0049] like Figure 2As shown, limiting blocks 36 are fixed on the two arms of the movable U-shaped frame 34, and the two limiting blocks 36 are respectively in contact with the ends of the two arms of the fixed U-shaped frame 33, so as to control the reset position of the movable U-shaped frame 34 relative to the fixed U-shaped frame 33, thereby limiting the initial / original / shortest length of the telescopic frame 31.

[0050] For ease of assembly, the end block 311 on the movable U-shaped frame 34 can be fixedly connected to the wall of the solid fixing sleeve 20 using bolts / screws. Simultaneously, the end block 312 on the fixed U-shaped frame 33 can be fixedly connected to the inner wall of the outer casing 10 using a snap-fit ​​structure. Figure 1 , Figure 3 As shown, a slot 12 corresponding to and matching the second end block 312 is provided on the inner wall of the outer casing 10. The second end block 312 is inserted into the slot 12, which fixes the second end block 312 relative to the outer casing 10 and prevents it from moving downward.

[0051] The sensing element includes a strain gauge sensor, and the sensitive part of the sensing element corresponds to a strain gauge 321 (or strain strip, strain gauge). Figure 1 , Figure 2 As shown, the strain gauge 321 is fixedly arranged on the elastic band 32, has a relatively long length, and is able to undergo significant strain changes during the elastic deformation of the elastic band 32. The strain sensor (body) can be fixed on the fixed U-shaped frame 33 or fixed on the inner wall of the outer casing 10.

[0052] The technical solution of this application may also include a transmission body 40 fixed to the upper end of the solid seal fixing sleeve 20, and a plurality of reset mechanisms 50 matched on the inner wall of the outer shell 10.

[0053] The upper end of the transmission body 40 matches the output end of the transmission mechanism, enabling the transmission mechanism to push the transmission body 40 and the solid seal fixing sleeve 20 to move downward relative to the outer shell 10 synchronously. An outer radial flange 41 is formed on the upper part of the transmission body 40, and multi-stage through holes 411 corresponding to and matching the reset mechanism 50 are distributed on the outer radial flange 41. The axial direction of the multi-stage through holes 411 is vertical, and an internal thread surface is formed at the lower part.

[0054] The reset mechanisms 50 are distributed alternately around the periphery of the transmission body 40, and each includes a solenoid 51, a guide rod 52, and a spring body 53.

[0055] The lower end of the guide rod 52 is fixed to the inner radial flange 13 formed on the inner wall of the outer casing 10, and the upper end extends upward and passes through the multi-stage through hole 411, and continues to extend upward for a certain length. The solenoid 51 is sleeved on the guide rod 52, and the inner diameter of the solenoid 51 is not less than the outer diameter of the guide rod 52. Furthermore, it is preferable to have the inner circumferential surface of the solenoid 51 formed as a cylindrical smooth surface.

[0056] The lower part of the solenoid 51 can extend into the multi-stage through hole 411, and the lower end of the solenoid 51 can extend outside the multi-stage through hole 411. The middle part of the outer wall of the solenoid 51 can match the internal thread surface on the multi-stage through hole 411, so that the height position of the solenoid 51 relative to the outer radial flange 41 can be adjusted, that is, the height position of the lower part / lower end of the solenoid 51 can be adjusted. The inner diameter of the upper part of the multi-stage through hole 411 is larger than the outer diameter of the solenoid 51. The length of the solenoid 51 is greater than the axial length of the multi-stage through hole 411.

[0057] The spring body 53 is sleeved on the guide rod 52, and its upper and lower ends correspond to the lower part of the solenoid 51 and the upper end face of the inner radial flange 13, respectively. Twisting the solenoid 51 can adjust the initial compression state of the spring body 53. An axial flange is formed at the lower part of the solenoid 51, and the outer diameter of the axial flange is smaller than the outer diameter of the solenoid 51 body. The upper end of the spring body 53 can be fitted onto the axial flange at the lower part of the solenoid 53, and the lower end contacts the upper end face of the inner radial flange 13.

[0058] When the transmission body 40 is subjected to a downward thrust F applied by the transmission mechanism, it can move downward in a straight line relative to the outer shell 10, thereby increasing the compression state of the spring body 53 in the reset mechanism 50. This causes the elastic reset force (extension force) of the spring body 53 to gradually increase. After the thrust F is released, the extension force of the spring body 53 drives the transmission body 40 to move upward relative to the outer shell 10, enabling the solid seal fixing sleeve 20 to move upward synchronously with the transmission body 40 to reset. By setting the reset mechanism 50, the upward reset capability of the solid seal fixing sleeve 20 can be optimized, improving the sufficiency of the reset and the stability and reliability of maintaining the initial position in the original state / initial state.

[0059] In the technical solution of this application, a long radial gap / radial spacing area is formed between the inner wall of the outer shell 10 and the upper part of the outer wall of the solid seal fixing sleeve 20, and the radial gap can meet the static space size requirement for installing the detection unit 30, as well as the activity space requirement for changes in the external dimensions of the detection unit 30.

[0060] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An intelligent seal monitoring device, comprising a housing (10), a seal fixing sleeve (20) for which a physical seal is fixed, a drive mechanism, a transmission mechanism, and a processor; the seal fixing sleeve (20) is disposed in the lower part of the cavity of the housing (10); the drive mechanism, the transmission mechanism, and the processor are disposed in the upper part of the cavity of the housing (10), and are configured to control the seal fixing sleeve (20) to move up and down relative to the housing (10) in a coordinated manner; characterized in that: It also includes a detection unit (30) connected to the processor; the detection unit (30) is fixedly installed between the inner wall of the cavity of the outer shell (10) and the wall of the solid stamp fixing sleeve (20), and can monitor the distance between the lower end face of the solid stamp fixing sleeve (20) and the lower port of the outer shell (10).

2. The intelligent seal monitoring device according to claim 1, characterized in that: The detection unit (30) includes at least one sensing mechanism containing a telescopic frame (31), an elastic band (32) and a sensing element; The upper end of the telescopic frame (31) is fixedly connected to the inner wall of the cavity of the outer shell (10), and the lower end is fixedly connected to the outer wall of the solid stamp fixing sleeve (20). It can expand and contract during the reciprocating movement of the solid stamp fixing sleeve (20) relative to the outer shell (10). The two ends of the elastic band (32) are fixed to the upper and lower sides of the telescopic frame (31) respectively, and can generate elastic deformation as the telescopic frame (31) expands and contracts; the sensitive part or movable part in the sensing element is fixed on the elastic band (32) and can generate physical quantity changes during the elastic deformation of the elastic band (32), so that the sensing element can feed back sensing signals to the processor.

3. The intelligent seal monitoring device according to claim 2, characterized in that: The detection unit (30) includes multiple sensing mechanisms and the multiple sensing mechanisms are distributed alternately around the circumference; The upper end of the telescopic frame (31) in each sensing mechanism is fixedly connected to the inner wall of the cavity of the outer shell (10), and the lower end is fixedly connected to the outer wall of the solid seal fixing sleeve (20); so that multiple telescopic frames (31) can synchronously expand and contract during the reciprocating movement of the solid seal fixing sleeve (20) relative to the outer shell (10), and so that each elastic band (32) can synchronously generate elastic deformation, so as to achieve the purpose of each sensing element generating physical quantity changes at the same time and feeding back sensing signals to the processor.

4. The intelligent seal monitoring device according to claim 2, characterized in that: The telescopic frame (31) includes a fixed U-shaped frame (33) and a movable U-shaped frame (34); the fixed U-shaped frame (33) is positioned above the movable U-shaped frame (34), and the arms of the two U-shaped frames are matched by a linear slide rail structure; the upper part of the fixed U-shaped frame (33) is fixedly connected to the outer shell (10), and the upper part of the movable U-shaped frame (34) is fixedly connected to the solid seal fixing sleeve (20); the upper end of the elastic band (32) is fixed on the fixed U-shaped frame (33), and the lower end is fixed on the movable U-shaped frame (34).

5. The intelligent seal monitoring device according to claim 2, characterized in that: The sensing element contains a strain sensor and the sensitive part of the sensing element is a strain gauge (321); the strain gauge (321) is fixed on the elastic band (32).

6. The intelligent seal monitoring device according to claim 2, characterized in that: The sensing element contains a capacitive sensor and the moving part in the sensing element is a dielectric body; one end of the dielectric body is fixed on the elastic band (32), and the other end is a free end that extends into the body of the capacitive sensor.

7. An intelligent seal monitoring device according to any one of claims 1 to 6, characterized in that: It also includes a transmission body (40) with its lower end fixed to the upper part of the solid stamp fixing sleeve (20), and multiple reset mechanisms (50); the upper end of the transmission body (40) is matched with the transmission mechanism, so that the transmission mechanism can push the transmission body (40) and the solid stamp fixing sleeve (20) to move downward relative to the outer shell (10) synchronously; An outer radial flange (41) is formed on the upper part of the transmission body (40), and multiple multi-stage through holes (411) are distributed on the outer radial flange (41) that correspond one-to-one with the reset mechanism (50) and extend axially in the vertical direction; the inner diameter of the multi-stage through holes (411) decreases stepwise from top to bottom, and an internal thread surface is formed at the bottom. The reset mechanism (50) is distributed around the periphery of the transmission body (40) in an alternating manner, and each includes a solenoid (51), a guide rod (52) and a spring body (53); the lower end of the guide rod (52) is fixed on the inner radial flange (13) formed on the inner wall of the outer shell (10), and the upper end extends upward after passing through the multi-stage through hole (411); the solenoid (51) is sleeved on the guide rod (52), and the middle part of the outer wall can match the internal thread surface on the multi-stage through hole (411), so that the position of the solenoid (51) relative to the outer radial flange (41) can be adjusted and changed, so that the lower end can extend out of the multi-stage through hole (411); the spring body (53) is sleeved on the guide rod (52), and the upper and lower ends correspond to the lower part of the solenoid (51) and the upper end of the inner radial flange (13), respectively; turning the solenoid (51) can adjust the initial compression state of the spring body (53).

8. The intelligent seal monitoring device according to claim 7, characterized in that: The inner wall of the solenoid (51) is formed into a cylindrical smooth surface; correspondingly, at least the outer peripheral surface of the upper part of the guide rod (52) is formed into a cylindrical smooth surface, and the inner diameter of the cylindrical smooth surface is consistent with the outer diameter of the cylindrical smooth surface.

9. The intelligent seal monitoring device according to claim 7, characterized in that: The axial length of the screw tube (51) is greater than the axial length of the multi-stage through hole (411), and the inner diameter of the upper part of the multi-stage through hole (411) is greater than the maximum outer diameter of the screw tube (51).

10. The intelligent seal monitoring device according to claim 9, characterized in that: An axial flange is formed at the lower part of the solenoid (51) and the outer diameter of the axial flange is smaller than the outer diameter of the body of the solenoid (51); the outer diameter of the body of the solenoid (51) is larger than the outer diameter of the spring body (53) and the upper end of the spring body (53) is fitted on the axial flange.

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