CN114800878A

CN114800878A - Self-adaptive repair pen

Info

Publication number: CN114800878A
Application number: CN202210450110.2A
Authority: CN
Inventors: 鲁昊
Original assignee: Peking University
Current assignee: Peking University
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-07-29
Anticipated expiration: 2042-04-26
Also published as: CN114800878B

Abstract

The embodiment of the invention provides a self-adaptive repair pen, which comprises: the pen repairing device comprises a repairing pen, a control system, an air source and a pen point switching device; the repairing pen is internally provided with a plurality of pen points with different specifications, and only one pen point can be accommodated at the pen point outlet of the repairing pen to extend out; the control system is electrically connected with the pen point switching device; the pen point switching device is connected with an air source through a pneumatic pipeline. After the technical scheme of the invention is adopted, when facing different surrounding rock states, the repairing pen can be automatically switched to the pen point adaptive to the current application environment through the signals given by the sensor feedback and control system, thereby facilitating the learning and mastering of the cultural relic repairing beginner.

Description

Self-adaptive repair pen

Technical Field

The invention relates to the technical field of archaeological tools, in particular to a self-adaptive repair pen.

Background

In archaeological work, operations such as cultural relic restoration and fossil restoration need to be performed frequently. Fossil remediation refers to the process of removing surrounding rocks covered on the surface of fossil by mechanical or chemical means. Because fossil formation time is long, generally hundreds of millions of years ago, the surrounding rock wrapped on the fossil is generally thick and hard in texture, and a pneumatic repairing tool (a pneumatic repairing pen) is often adopted for mechanical repair; the method for repairing cultural relics is similar to that of fossil repair, but because the cultural relics are buried underground for thousands of years, most of the deposits wrapped on the cultural relics are soil, the texture is soft, hard rocks are not formed by consolidation, the repairing strength is lighter, and thinner needles are required to be selected.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

in the pneumatic restoration pen, aiming at different scenes, various force and needle head (pen point) models are configured, and for beginners, the correct selection of the needle head model and force control of the pneumatic pen is not easy to master, and much time is required for exploration. Therefore, how to enable a beginner to quickly master the use of the pneumatic repair pen is a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a self-adaptive repair pen, which can automatically replace a pen point and adjust force according to field conditions under the instruction of a control system, and can solve the problem that the conventional beginner is difficult to master the pneumatic repair pen.

To achieve the above object, an embodiment of the present invention provides an adaptive repair pen, including: the pen comprises a pen body, a control system, an air source and a pen point switching device; a plurality of pen points with different specifications are arranged in the pen body, and only one pen point can be accommodated at the pen point outlet of the pen body to extend out; the control system is electrically connected with the pen point switching device; the pen point switching device is connected with an air source through a pneumatic pipeline.

Further, the adaptive repair pen further comprises a hardness sensor; the hardness sensor is electrically connected with the control system.

Further, the pen point switching device comprises a plurality of micro air cylinders positioned inside the pen body and a plurality of electromagnetic reversing valves positioned outside the pen body; the number of the micro air cylinders is the same as that of the electromagnetic directional valves, and each micro air cylinder is connected with the corresponding electromagnetic directional valve through a directional pneumatic pipe; the micro cylinder comprises a piston rod capable of moving along the inner wall of the cylinder, and the piston rod is connected with the tail part of the pen point through a flexible pipe.

Furthermore, the electromagnetic directional valve is a two-position three-way electromagnetic valve.

Furthermore, the pen body comprises a front pen body and a rear pen body sleeved outside the front pen body; the pen point, the flexible pipe and the micro cylinder are arranged in the front pen body; the front pen body and the rear pen body are coaxially arranged, and the front pen body can axially move in the rear pen body; a spring is axially arranged between the front pen body and the rear pen body; the pen body is internally provided with a pneumatic reciprocating device.

Furthermore, the pneumatic reciprocating device comprises a collision block arranged in the rear pen body, the collision block can axially move, and when the collision block moves to the foremost end, the collision block can contact the tail end of the front pen body.

Furthermore, the air inlet of the collision block is connected with an air source through a main air supply pipe; and a gas quantity regulating valve is also arranged in the main gas supply pipe and is electrically connected with the control system.

Further, the adaptive repair pen further comprises a pressure sensor; the pressure sensor is electrically connected with the control system.

Further, the self-adaptive repair pen further comprises a dust hood; the dust hood is electrically connected with the control system and is connected with the negative pressure dust removal device through a dust removal pipeline.

Further, the adaptive repair pen further comprises a humidity sensor; the humidity sensor is electrically connected with the control system.

The technical scheme has the following beneficial effects:

according to the technical scheme, the hardness and porosity of the surrounding rock are determined according to information collected by the sensor and information such as the material to be repaired and the environment, and the pneumatic repairing pen can be automatically replaced to a corresponding pen point model under the instruction of a control system by combining a prefabrication algorithm, so that a beginner can conveniently and quickly master the pneumatic repairing pen.

In addition, the application also has the following characteristics:

1. according to the information acquired by the pressure sensor, the pneumatic repairing pen can automatically control the force;

2. the instant dust removal device is integrated on the repair pen, so that the repair and cleaning are realized, the problems that the current dust is not cleaned in time and fine dust is possibly generated are solved, and the repair space can be kept dry according to the feedback of the humidity sensor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an adaptive repair pen according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the interior of the pen body in the embodiment of the invention;

reference numerals: 1. a pen body; 2. a control system; 3. an electromagnetic directional valve; 4. a gas source; 5. a hardness sensor; 6. a pressure sensor; 7. a dust hood; 8. a humidity sensor; 9. a one-way valve; 10. a gas quantity regulating valve; 12. a negative pressure dust removing device; 101. a front pen body; 102. a pen point; 103. a cambered surface; 104. a flexible tube; 105. a cylinder support frame; 106. a micro cylinder; 107. a piston rod; 108. a piston spring; 109. a front pen body rear cover; 110. a front pen body rear flange; 111. a flange of a rear cover of the front pen body; 112. a piston rodless cavity; 113. a reversing pneumatic tube; 201. a rear pen body; 202. a spring; 203. a rear pen body partition plate; 204. a rear cover of the rear pen body; 205. bumping the block; 206. a collision block guide seat; 207. a second air outlet joint; 208. a first air outlet joint; 209. a main gas supply pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment of the invention provides a self-adaptive repair pen, which comprises: the pen comprises a pen body 1, a control system 2, an air source 4 and a pen point switching device; the pen body 1 is internally provided with a plurality of pen points 102 with different specifications, and the pen point outlet of the pen body 1 can only accommodate one pen point 102 to extend out at the same time; the control system 2 is electrically connected with the pen point switching device; the nib switching device is connected with the air source 4 through a pneumatic pipeline.

In order to solve the problem that a beginner cannot easily master the repair pen, in the present application, as shown in fig. 1, a pen body 1 of the pneumatic repair pen is connected with a control system 2 (such as a computer, etc.), and a pen point switching device is arranged between the pen body and the control system, when the control system 2 determines that the current pen tip 102 is not suitable for the current surrounding rock environment and needs to be replaced according to the feedback of other external equipment (such as a fossil observation platform and the like), an instruction is sent to the pen tip switching device, the nib 102 meeting the current environmental requirements in the pen body 1 is extended from the nib outlet by the action of the nib switching device for the user to use, the process does not need manual participation, automatic selection is carried out by the control system 2 and a pre-manufactured algorithm, and thus is very friendly to a beginner, so that the beginner can quickly put into work and understand and grasp the principle of selection/replacement of the pen tip 102 during use. As shown in fig. 2, the pen body 1 has a plurality of pen tips 102 (for simplicity, only two pen tips 102 are shown in fig. 2, and in practice, a plurality of pen tips 102 are shown), and the pen tip outlet can only accommodate one pen tip 102, so as to avoid the problem caused by the fact that a plurality of pen tips 102 are extended together in an unexpected situation.

The pen point switching device can be in an electric or pneumatic driving mode. Since most current prosthetic pens use pneumatic propulsion to effect the vibration of the nib 102, thereby increasing the efficiency of operation, a pneumatic form of nib switching mechanism is preferred in this application. The air source 4 is used for providing power for the pen point switching device, and a one-way valve 9 can be arranged in a pipeline at the outlet of the air source 4 in order to ensure the stable operation of the system.

Further, the adaptive repair pen further comprises a hardness sensor 5; the hardness sensor 5 is electrically connected to the control system 2.

In order to further improve the self-adaptive capacity of the present application, a hardness sensor 5 is further provided as shown in fig. 1. The hardness sensor 5 can acquire the hardness value of the current operation target, feed back the hardness value to the control system 2, and compare the acquired hardness value with the preset hardness value range of the current pen point 102. When the hardness value range of the current pen point 102 is exceeded, the current pen point 102 is judged not to meet the current use requirement, and the pen point needs to be replaced. At this time, the control system 2 searches in a pre-stored database to determine the appropriate type of the pen tip 102 corresponding to the hardness value actually acquired at present, and then sends an instruction to the pen tip switching device to retract the pen tip 102 currently used into the pen body 1 and extend the selected correct pen tip 102.

Further, the pen tip switching device comprises a plurality of micro air cylinders 106 positioned inside the pen body 1 and a plurality of electromagnetic directional valves 3 positioned outside the pen body 1; the number of the microcylinders 106 is the same as that of the electromagnetic directional valves 3, and each microcylinder 106 is connected with the corresponding electromagnetic directional valve 3 through a directional pneumatic pipe 113; the microcylinder 106 comprises a piston rod 107 capable of moving along the inner wall of the cylinder, and the piston rod 107 is connected with the tail part of the pen tip 102 through a flexible tube 104.

In the present application, the switching operation is realized by the combination of the electromagnetic directional valve 3 and the microcylinder 106. As shown in fig. 2, the micro cylinders 106 are fixed inside the pen body 1 by the cylinder support 105, and the air steel support 105 may be fixed to the pen body 1 by a screw connection or the like. The rear end of the pen point 102 is connected with a flexible pipe 104, the other end of the flexible pipe 104 is connected with a piston rod 107 at the bottom of the micro cylinder 106, after an action signal given by the control system 2 is received, a certain electromagnetic reversing valve 3 acts to conduct an air inlet path, air enters an inlet at the upper end of the micro cylinder 106 through a corresponding reversing pneumatic pipe 113, a piston rodless cavity 112 is filled with the air, the piston rod 107 is pushed to move downwards to overcome the elastic force of a piston spring 108, and therefore the corresponding flexible pipe 104 and the pen point 102 are driven to move downwards. Since the pen body 1 has a plurality of pen points 102, the plurality of pen points 102 are all arranged eccentrically to the pen point outlet, and at this time, the flexible tube 104 is deformed at a certain angle under the guidance of the arc surface 103, so that the pen points 102 protrude from the pen point outlet. The flexible tube 104 may be made of polyurethane, nylon, or other materials, or may be designed as a multilayer structure with an inner non-metal tube and an outer steel braid.

Furthermore, the electromagnetic directional valve 3 is a two-position three-way electromagnetic valve.

The electromagnetic directional valve 3 can be a two-position two-way electromagnetic valve or a two-position three-way electromagnetic valve, but in order to enable the pen point to reset rapidly, a two-position three-way electromagnetic valve form is preferred in the application. When the tip 102 needs to be replaced, the tip 102 currently in use needs to be reset and retracted into the pen body 1. The work flow is as follows: the control system 2 sends a signal to the electromagnetic directional valve 3 corresponding to the pen point 102 at present, so that the air path of the electromagnetic valve is reversed, the air in the piston rodless cavity 112 is discharged along the exhaust port of the two-position three-way electromagnetic valve, and then the compressed piston spring 108 reversely pushes the piston rod 107 to move upwards, so that the pen point 102 is retracted into the pen body 1.

Further, the pen body 1 comprises a front pen body 101 and a rear pen body 201 sleeved outside the front pen body 101; the pen tip 102, the flexible tube 104 and the micro cylinder 106 are arranged in the front pen body 101; the front pen body 101 and the rear pen body 201 are coaxially arranged, and the front pen body 101 can axially move in the rear pen body 201; a spring 202 is axially arranged between the front pen body 101 and the rear pen body 201; the pen body 1 is internally provided with a pneumatic reciprocating device.

The above-described solution can realize automatic adaptive replacement of the pen tip 102, and can be used for repairing cultural relics, particularly fossil stones, but in order to improve the working efficiency, a pneumatic reciprocating device can be added to realize pulse type vibration of the pen tip 102. Although the pneumatic reciprocating device is more applied to the pneumatic repairing pen as a prior art, the structure of the pneumatic reciprocating device is completely different from that of the pneumatic repairing pen in the prior art due to the fact that the pneumatic reciprocating device is provided with the pen point switching device, and therefore the pneumatic reciprocating device in the prior art cannot be directly applied. The pneumatic repairing pen is designed to be of a double-layer structure, namely, the pneumatic repairing pen is divided into the front pen body 101 and the rear pen body 201, and an operator can hold the outer surface of the front end of the rear pen body 201 in a hand when the pneumatic repairing pen is used. The tail of the front pen body 101 is provided with a front pen body rear flange 110 protruding out of the outer surface of the front pen body 101, the front end of the rear pen body 201 is also provided with an annular boss recessed inwards, and a spring 202 is arranged between the annular boss and the front pen body rear flange 110 to assist the pneumatic reciprocating device to realize the axial reciprocating movement of the front pen body 101 in the rear pen body 201.

For the convenience of installation, the rear body 201 is provided at its rear end with a rear body rear cover 204, which may be screwed or the like. During assembly, the internal components of the front pen body 101 are pre-assembled, then the front pen body 101 and the spring 202 are assembled from the tail open end of the rear pen body 201, and then the rear pen body partition 203, the striking block 205, the rear pen body rear cover 204 and other components are assembled.

Further, the pneumatic reciprocating device comprises a striking block 205 arranged in the rear pen body 201, wherein the striking block 205 can move axially and can contact the tail end of the front pen body 101 when the striking block 205 moves to the foremost end.

In the present application, the vibration is realized by the striker 205 which is axially movable in the striker guide 206. The air source 4 inputs compressed air into the cavity at the top of the rear pen body 201 through the main air supply pipe 209, the compressed air cannot diffuse out due to the blocking of the rear pen body partition plate 203, the air enters the middle cavity of the striking block 205 through the lateral opening on the striking block guide seat 206 to push the striking block 205 to move downwards and strike the middle part of the front pen body rear cover 109 fixedly connected to the tail end of the front pen body 101 (a convex front pen body rear cover flange 111 can be arranged at the middle part of the front pen body rear cover 109 and is used as a contact point of the striking block 205), so that all parts in the whole front pen body 101 move downwards together; in the downward movement process of the striking block 205, the middle cavity of the striking block 205 is blocked by the side surface of the rear pen body partition plate 203, so that the middle cavity is not contacted with the side air inlet hole of the striking block guide seat 206 any more and is decompressed, the air flow direction is changed, the cavity on the side of the striking block 205 is filled with air, the striking block 205 moves reversely until the striking block is reset, and at the moment, the front pen body 101 is reset upwards under the action of the spring 202. The current pen point 102 can generate impulse impact on the restoration target through the circulation. The striking block 205 itself is one of the pneumatic reciprocating devices in the prior art, and therefore, the detailed structure thereof is not described again.

Further, the air inlet of the ram 205 is connected with the air source 4 through a main air supply pipe 209; an air quantity regulating valve 10 is also arranged in the main air supply pipe 209, and the air quantity regulating valve 10 is electrically connected with the control system 2.

For the convenience of control, in the application, the air path required by the pneumatic reciprocating device is separated from the air path required by the pen point switching device. As shown in fig. 2, the reciprocating device air is introduced into the rear pen body 201 from the second air outlet joint 207 through the main air supply pipe 209; the pen tip switching device air is introduced into the micro air cylinder 106 in the front pen body 101 through the first air outlet joint 208 by the reversing air pipe 113.

Further, the adaptive repair pen further comprises a pressure sensor 6; the pressure sensor 6 is electrically connected to the control system 2.

The force refers to the vibration frequency of the pen point of the pneumatic pen, and the force for frequently replacing and repairing the pen is needed in different environments. In order to automatically control the force for repairing the pen, the pressure sensor 6 is further arranged and used for feeding back a pressure signal to the control system 2. Feedback signals of the comprehensive hardness sensor 5 and the pressure sensor 6 are analyzed by the control system 2, and then the current repairing work can be comprehensively judged according to hardness values and pressure values, so that which kind of rock or fossil is touched, and the appropriate force is calculated. In this application, be provided with automatically controlled tolerance governing valve 10 in main gas supply pipe 209, through pressure feedback signal, control system 2 can judge according to the preset algorithm, whether, if needs the adjustment, the valve aperture of accessible adjustment tolerance governing valve 10 realizes the dynamics adjustment to pneumatic restoration pen

Further, the self-adaptive repair pen further comprises a dust hood 7; the dust hood 7 is electrically connected with the control system 2 and is connected with the negative pressure dust removal device 12 through a dust removal pipeline.

In the repairing process, a large amount of dust is generated, and the dust needs to be removed in time. At present, the suction ear ball is blown to the side or a negative pressure dust hood is additionally arranged on a workbench, so that the situation that dust is sucked into the body of a repairer in the clearing process and further the body health of the repairer is damaged cannot be completely avoided. Therefore, the dust removal cover 12 can be integrally arranged on the pen body 1 through the fixing frame, so that dust is removed nearby and cannot be scattered into the air. In order to automatically control the suction force of the dust hood 12, the negative pressure dust removing device 12 can be connected with the control system 2 and adjusted in real time through the control system 2. Meanwhile, air is extracted through negative pressure, and the air humidity of the operation area can be adjusted.

Further, the adaptive repair pen further comprises a humidity sensor 8; the humidity sensor 8 is electrically connected to the control system 2.

In this application, still be provided with humidity transducer 8, can make the system adjust the dynamics of dehumidification according to humidity transducer 8's feedback signal, adjust the dynamics that negative pressure dust collector 12 took out air promptly to keep repairing the drying of position.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An adaptive repair pen, comprising: the pen comprises a pen body (1), a control system (2), an air source (4) and a pen point switching device; the pen body (1) is internally provided with a plurality of pen points (102) with different specifications, and the pen point outlet of the pen body (1) can only accommodate one pen point (102) to extend out at the same time; the control system (2) is electrically connected with the pen point switching device; the pen point switching device is connected with the air source (4) through a pneumatic pipeline.

2. The adaptive repair pen of claim 1, further comprising a hardness sensor (5); the hardness sensor (5) is electrically connected with the control system (2).

3. The adaptive repair pen of claim 1, wherein the pen tip switching means comprises a plurality of micro air cylinders (106) located inside the pen body (1) and a plurality of electromagnetic directional valves (3) located outside the pen body (1); the number of the micro cylinders (106) is the same as that of the electromagnetic directional valves (3), and each micro cylinder (106) is connected with the corresponding electromagnetic directional valve (3) through a directional pneumatic pipe (113); the micro cylinder (106) comprises a piston rod (107) capable of moving along the inner wall of the cylinder, and the piston rod (107) is connected with the tail part of the pen point (102) through a flexible pipe (104).

4. The adaptive repair pen of claim 3, wherein the electromagnetic directional valve (3) is a two-position three-way electromagnetic valve.

5. The adaptive repair pen of claim 3, wherein the pen body (1) comprises a front pen body (101) and a rear pen body (201) sleeved outside the front pen body (101); the pen tip (102), the flexible tube (104) and the micro cylinder (106) are arranged in the front pen body (101); the front pen body (101) and the rear pen body (201) are coaxially arranged, and the front pen body (101) can axially move in the rear pen body (201); a spring (202) is axially arranged between the front pen body (101) and the rear pen body (201); the pen body (1) is internally provided with a pneumatic reciprocating device.

6. The adaptive repair pen of claim 5, wherein the pneumatic reciprocation device comprises a striker (205) disposed in the rear pen body (201), the striker (205) being axially movable and capable of contacting the tip of the front pen body (101) when the striker (205) is moved to the forwardmost end.

7. The adaptive repair pen of claim 6, wherein the air inlet of the striker (205) is connected to an air supply (4) through a main air supply pipe (209); an air quantity regulating valve (10) is further arranged in the main air supply pipe (209), and the air quantity regulating valve (10) is electrically connected with the control system (2).

8. The adaptive repair pen of claim 7, further comprising a pressure sensor (6); the pressure sensor (6) is electrically connected with the control system (2).

9. The adaptive repair pen of claim 1, further comprising a dust hood (7); the dust hood (7) is electrically connected with the control system (2) and is connected with the negative pressure dust removal device (12) through a dust removal pipeline.

10. The adaptive repair pen of claim 9, further comprising a humidity sensor (8); the humidity sensor (8) is electrically connected with the control system (2).