A modular class 4 library

Abstract

The application relates to the technical field of four-category library, and discloses a modular four-category library which comprises a box body, a power supply battery is fixedly installed on the back surface of the outer surface of the box body and close to the bottom, a power supply strip is fixedly installed on the back surface of the inner cavity of the box body and close to the middle, the power supply battery is connected with the power supply strip through wires, a liquid guiding device is fixedly installed on the bottom of a liquid storage bin and close to the back surface, support plates are fixedly installed on the two sides of the inner wall of the inner cavity of the box body in a welding mode, a bearing device is placed on the top of each support plate, the bearing device is designed in a detachable and modular mode, the whole bearing device can be installed according to the specific needs of users, when the volume of the property to be stored by the user is large, the spacing between the bearing devices can be properly increased during installation, so that the property can be conveniently stored, the inconvenience caused by the fact that the traditional safe cannot store the property with a large volume due to the small layer spacing is avoided, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of four-category libraries, in particular to a modular four-category library. BACKGROUND

[0002] The four-category library is a device for storing valuable property files, has very excellent anti-theft performance and fireproof performance, is opened through unlocking modes such as fingerprint unlocking, password unlocking, mechanical unlocking and IC card unlocking, is convenient to use, and the shell and the box door of the four-category library are made of high-strength alloy materials and can resist huge external force, thereby fully protecting the valuable property and important files inside, and the support plate inside is generally fixedly installed in the inside of the box body through welding or bolt connection, and plays a role in bearing the property files.

[0003] Although the existing four-category library has the above-mentioned many advantages, there are still certain limitations in the actual use process, because the bearing plate in the inside of the box body is installed in a fixed mode and has a fixed spacing, when the volume of the property is large, the storage is inconvenient, in addition, the four-category library can only record the opening and closing of the library door in the process of taking, and it is difficult to detect the articles on each layer, and the problem that the loss of the property cannot be found in time when the number of the lost property is small, for this purpose, the application file proposes a modular four-category library, which aims to solve the above-mentioned problems. SUMMARY

[0004] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a modular four-category library, comprising a box body, a liquid storage bin is arranged at the top of the inner cavity of the box body, a liquid is injected into the inside of the liquid storage bin, a liquid injection hole is fixedly installed at the top of the box body in a welding mode, the liquid injection hole is in communication with the inner cavity of the liquid storage bin, a depth measuring cover is fixedly installed at the top of the liquid injection hole in a threaded cooperation mode, a power supply battery is fixedly installed at the position close to the bottom of the back surface of the outer surface of the box body in a bolt connection mode, a power supply strip is fixedly installed at the position close to the middle of the back surface of the inner cavity of the box body in a welding mode, a liquid guide device is fixedly installed at the position close to the back surface of the bottom of the liquid storage bin in a welding mode, support sheets are fixedly installed on the two sides of the inner wall of the inner cavity of the box body in a welding mode, a bearing device is placed at the top of the support sheet, an induction seat is fixedly installed on one side of the outer surface of the box body in a welding mode, a box door is sleeved on the position close to one side of the front surface of the box body in an axle hole cooperation mode, a safety lock is fixedly installed on the front surface of the box door in a welding mode, a trigger seat is fixedly installed on one side of the box door in a welding mode, and the induction seat and the trigger seat are in contact when the box door is in a closed state.

[0005] Further, the liquid guide device comprises a liquid guide pipe in communication with the inner cavity of the liquid storage bin, the outer surface of the liquid guide pipe is provided with a liquid guide hole by means of drilling, the liquid guide holes are distributed in a linear array, the corresponding position of the outer surface of the liquid guide pipe and the liquid guide hole is fixedly installed with a protruding seat by welding, the position of the outer surface of the liquid guide pipe below the liquid guide hole is fixedly installed with a spring seat by welding, the corresponding position of the outer surface of the liquid guide pipe and the liquid guide hole is movably sleeved with a stroke pipe, the outer surface of the stroke pipe is provided with a liquid storage chamber by welding, the outer surface of the liquid storage chamber is fixedly installed with a connecting pipe near the bottom by welding, the inner cavity of the connecting pipe is in communication with the liquid storage chamber, the inner part of the connecting pipe is fixedly sleeved with a rubber one-way valve by clamping, the number of the rubber one-way valve is two, the top of the spring seat outside the liquid guide pipe is fixedly installed with a supporting spring by clamping, and the top of the supporting spring is fixedly connected with the bottom of the stroke pipe by clamping.

[0006] Further, the inner wall of the liquid storage chamber and the outer surface of the protruding seat are in contact when the stroke pipe is in the initial state, and the axis of the connecting pipe and the axis of the liquid guide hole are located on the same center line.

[0007] Further, the bearing device comprises a bearing plate, the back surface of the bearing plate is provided with a locking groove near both sides by means of milling, the back surface of the bearing plate is provided with a fixed groove in the middle by means of milling, the inner part of the fixed groove is fixedly installed with a mounting seat by means of bolt connection, the back surface of the mounting seat is provided with a power supply groove by means of milling, both sides of the mounting seat are fixedly sleeved with a pressure sensor by means of shaft hole cooperation, the bottom of the fixed groove is provided with a pressure guide hole by means of integral casting, the pressure guide hole extends to the inner wall of the fixed groove and is in communication with the pressure sensor, the bottom of the bearing plate is provided with a mounting groove near both sides, the top of the mounting groove is fixedly installed with a spring sheet by means of clamping, the bottom of the spring sheet is fixedly installed with a contact seat by means of clamping, and the bottom of the locking groove and one end of the pressure guide hole are fixedly installed with a cannula by means of welding.

[0008] Further, the power supply groove is matched with the power supply strip, and the power supply groove is connected with the pressure sensor through the power supply wire.

[0009] Further, after the bearing device is slidably installed along the top of the supporting sheet, the cannula is inserted into the inner part of the connecting pipe, and after the bearing device is installed, the supporting sheet is located below the contact seat and contacts each other.

[0010] Further, the sensing seat, the pressure sensor and the safety lock are connected with each other through signal connection.

[0011] The application has the following beneficial effects.

[0012] 1. The carrying device inside the four-type library adopts modular design, and the user can adjust the spacing between the carrying devices according to the size of the property, thereby facilitating the storage of the property, avoiding the inconvenience caused by the small layer spacing of the traditional safe deposit box, and improving the practicability of the device.

[0013] 2. After the installation of the carrying device, the pipe will be inserted into the inside of the rubber single-way valve to realize clamping, thereby avoiding the loosening of the carrying device. When the property is placed on the top of the carrying device, the overall load of the carrying device increases, the overall height of the carrying device decreases, and the height difference between the carrying device and the liquid storage bin increases, so that the pressure sensed by the pressure sensor increases. When the property is taken, the load of the carrying device decreases, the carrying device resets, and the height difference between the carrying device and the liquid storage bin decreases, so that the pressure sensed by the pressure sensor decreases, thereby realizing the recognition of the change of the property on the top of the carrying device, and enabling the four-type library to monitor the property inside more carefully, avoiding the problem that the loss of a small amount of property cannot be discovered in the first time, and providing the safety performance of the device.

[0014] 3. The number of rubber single-way valves is two, which ensures that the rubber single-way valve resets after the carrying device is disassembled and closes under the action of water pressure, thereby preventing liquid leakage. A small amount of liquid that leaks during the resetting process of the rubber single-way valve will also remain in the cavity between the rubber single-way valves and will not enter the four-type library.

[0015] 4. After the carrying device is inserted and fixed, the power supply battery supplies power to the pressure sensor through the power supply strip and the power supply slot, so that the pressure sensor is in a working state. When the carrying device is in a disassembled state, the carrying device stops supplying power to the pressure sensor, thereby realizing that the carrying device is in the best power consumption, improving the efficiency of the carrying device, reducing the charging frequency, and further providing the practicability of the device.

[0016] 5. The trigger seat and the sensing seat are connected after the box door is closed. At this time, the sensing seat transmits an activation signal to the pressure sensor. When the load of the carrying device changes, the pressure sensor records the liquid pressure at this time. When someone opens the box door and takes out the property, the load of the carrying device decreases, and the pressure sensor detects that the liquid pressure decreases. At this time, the user can be informed of the situation through the safe lock, so that the user can master the situation inside the four-type library in the first time. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0018] The present disclosure can be understood more readily by reference to the following detailed description, taken in connection with the accompanying drawings, and wherein:

[0019] Figure 1 is a structural schematic diagram of the present application;

[0020] Figure 2 is a front view of the sealing door of the structure of the present application;

[0021] Figure 3 is a back view of the sealing door of the structure of the present application;

[0022] Figure 4 is a detailed view of the inside of the box of the structure of the present application;

[0023] Figure 5 is a right view of the box of the structure of the present application;

[0024] Figure 6 is a structural schematic diagram of the present application; Figure 5 is a sectional view in the direction of A-A of the structure of the present application;

[0025] Figure 7 is a sectional view in the direction of B-B of the structure of the present application; Figure 6

[0026] is an enlarged view of C of the structure of the present application; Figure 8 Figure 7 is a schematic diagram of the bearing device of the structure of the present application;

[0027] Figure 9 is a back view of the bearing device of the structure of the present application;

[0028] Figure 10 is a sectional view in the direction of D-D of the structure of the present application.

[0029] Figure 11 Figure 10

[0030] Figure; 1, box; 2, liquid storage bin; 3, liquid injection hole; 4, depth measuring cover; 5, power supply battery; 6, power supply strip; 7, liquid guiding device; 71, liquid guiding pipe; 72, liquid guiding hole; 73, protruding seat; 74, spring seat; 75, stroke pipe; 76, liquid storage chamber; 77, connecting pipe; 78, rubber one-way valve; 79, supporting spring; 8, supporting sheet; 9, bearing device; 91, bearing plate; 92, locking groove; 93, fixing groove; 94, mounting seat; 95, power supply groove; 96, pressure sensor; 97, pressure guiding hole; 98, mounting groove; 99, spring sheet; 901, contact seat; 902, insertion pipe; 10, sensing seat; 11, box door; 12, safety lock; 13, trigger seat. DETAILED DESCRIPTION

[0031] ​​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0032] A modular four-class library, please refer to Figures 1-7 , including box 1, the top of the inner cavity of the box 1 is provided with a liquid storage bin 2, the inside of the liquid storage bin 2 is injected with liquid, the top of the box 1 is fixedly installed with a liquid injection hole 3 by welding, the liquid injection hole 3 is communicated with the inner cavity of the liquid storage bin 2, the top of the liquid injection hole 3 is fixedly installed with a depth measuring cover 4 by screwing, the depth of the liquid in the liquid storage bin 2 can be directly observed after the depth measuring cover 4 is removed, avoiding the problem that the device cannot be used normally due to insufficient liquid in the liquid storage bin 2, the power supply battery 5 is fixedly installed on the position near the bottom of the back surface of the outer surface of the box 1 by bolt connection, the power supply strip 6 is fixedly installed on the position near the middle of the back surface of the inner cavity of the box 1 by welding, the power supply battery 5 and the power supply strip 6 are connected by wires, the liquid guide device 7 is fixedly installed on the position near the back of the bottom of the liquid storage bin 2 by welding, the support pieces 8 are fixedly installed on both sides of the inner wall of the inner cavity of the box 1 by welding, the bearing device 9 is placed on the top of the support piece 8, the bearing device 9 adopts a detachable modular design, the bearing device 9 as a whole can be installed according to the specific needs of the user, when the user needs to store large-size property, the spacing between the bearing devices 9 can be appropriately increased during installation, thereby facilitating the storage of property, avoiding the inconvenience caused by the small layer spacing of the traditional safe deposit box which cannot exist large-size property, improving the practicability of the device, the induction seat 10 is fixedly installed on one side of the outer surface of the box 1 by welding, the box door 11 is sleeved on the position near one side of the front surface of the box 1 by shaft hole cooperation, the safety lock 12 is fixedly installed on the front surface of the box door 11 by welding, the trigger seat 13 is fixedly installed on one side of the box door 11 by welding, the induction seat 10 and the trigger seat 13 are in contact when the box door 11 is in the closed state.

[0033] Please refer to Figure 8The liquid guiding device 7 comprises a liquid guiding pipe 71 which is communicated with the inner cavity of the liquid storage bin 2. The outer surface of the liquid guiding pipe 71 is provided with liquid guiding holes 72 which are distributed in a linear array by means of drilling. The corresponding position of the outer surface of the liquid guiding pipe 71 and the liquid guiding holes 72 is fixedly installed with a convex seat 73 by welding. The position of the outer surface of the liquid guiding pipe 71 below the liquid guiding holes 72 is fixedly installed with a spring seat 74 by welding. The corresponding position of the outer surface of the liquid guiding pipe 71 and the liquid guiding holes 72 is movably sleeved with a stroke pipe 75. The outer surface of the stroke pipe 75 is provided with a liquid storage chamber 76 by welding. The position close to the bottom of the outer surface of the liquid storage chamber 76 is fixedly installed with a connecting pipe 77 by welding. The connecting pipe 77 is communicated with the inner cavity of the liquid storage chamber 76. The inner part of the connecting pipe 77 is fixedly sleeved with a rubber single-way valve 78 by clamping. The number of the rubber single-way valve 78 is two. The top of the spring seat 74 is fixedly installed with a supporting spring 79 by clamping. The top of the supporting spring 79 is fixedly connected with the bottom of the stroke pipe 75 by clamping.

[0034] Please refer to Figure 8 When the stroke pipe 75 is in the initial state, the inner wall of the liquid storage chamber 76 is in contact with the outer surface of the convex seat 73. The axis of the connecting pipe 77 and the axis of the liquid guiding hole 72 are located on the same center line.

[0035] Please refer to Figures 1-11The bearing device 9 comprises a bearing plate 91, a locking groove 92 is formed on the back of the bearing plate 91 near both sides by milling, a fixing groove 93 is formed on the back of the bearing plate 91 in the middle by milling, a mounting seat 94 is fixedly installed in the fixing groove 93 by bolt connection, a power supply groove 95 is formed on the back of the mounting seat 94 by milling, a pressure sensor 96 is fixedly sleeved on both sides of the mounting seat 94 by shaft hole cooperation, a pressure guide hole 97 is arranged at the bottom of the fixing groove 93 by integral casting, the pressure guide hole 97 extends to the inner wall of the fixing groove 93 and communicates with the pressure sensor 96, an installation groove 98 is arranged at the bottom of the bearing plate 91 near both sides, a spring sheet 99 is fixedly installed at the top of the installation groove 98 by clamping, a contact seat 901 is fixedly installed at the bottom of the spring sheet 99 by clamping, and a pipe 902 is fixedly installed on the bottom of the locking groove 92 corresponding to one end of the pressure guide hole 97 by welding, so that the pipe 902 is better fixed to the whole bearing device 9 after insertion, and the rubber one-way valve 78 is reset after the bearing device 9 is disassembled and closed under the action of water pressure, preventing liquid leakage, a small amount of liquid leakage during the reset process of the rubber one-way valve 78 will also be left in the cavity between the rubber one-way valve 78 and will not enter the four types of libraries, thereby avoiding the liquid leakage to cause the property to be damp and produce mildew spots, and improving the stability of the device during storage.

[0036] Please refer to Figures 1-7 and Figures 9-11 The power supply groove 95 is matched with the power supply strip 6, the power supply groove 95 is connected with the pressure sensor 96 through power supply wires, so that when the bearing device 9 is inserted and fixed, the power supply groove 95 is connected with the power supply strip 6, at this time, the power supply battery 5 supplies power to the pressure sensor 96 through the power supply strip 6 and the power supply groove 95, so that the pressure sensor 96 is in working condition, and when the bearing device 9 is in a disassembled state, the bearing device 9 stops supplying power to the pressure sensor 96, so as to realize that the bearing device 9 is in the best power consumption, improve the efficiency of the bearing device 9, reduce the charging frequency, and further provide the practicability of the device.

[0037] Please refer to Figures 1-11, the bearing device 9 is slidably installed along the top of the support sheet 8, and the insertion pipe 902 is inserted into the inside of the connecting pipe 77, after the bearing device 9 is installed, the support sheet 8 is located below the contact seat 901 and is in contact with each other, so that the insertion pipe 902 of the bearing device 9 is inserted into the inside of the rubber single-way valve 78 after installation, so as to realize clamping, avoid the bearing device 9 from being loose, and at the same time, after the insertion pipe 902 is inserted into the rubber single-way valve 78, the liquid in the liquid storage bin 2 enters the inside of the pressure guide hole 97 through the liquid guide pipe 71, the liquid guide hole 72 and the insertion pipe 902, and finally contacts the pressure sensor 96, at this time, the pressure sensor 96 can sense the pressure of the liquid, when the user places the property on the top of the bearing device 9, the load of the bearing device 9 is increased, the travel pipe 75 is displaced downward along the extending direction of the liquid guide pipe 71, at the same time, the spring sheet 99 is also compressed synchronously and the contact seat 901 moves to the inside of the installation groove 98, so that the overall height of the bearing device 9 is reduced, the height difference between the bearing device 9 and the liquid storage bin 2 is increased, so that the pressure sensed by the pressure sensor 96 is increased, when the property is taken, the load of the bearing device 9 is reduced, the bearing device 9 is reset, so that the height difference between the bearing device 9 and the liquid storage bin 2 is reduced, so that the pressure sensed by the pressure sensor 96 is reduced, so as to realize that the bearing device 9 can recognize the change of the property on the top, so that the four-type library can monitor the property in the inside more carefully, avoid the problem that a small amount of property is lost and cannot be found at the first time, and the safety performance of the device is provided.

[0038] Please refer to Figures 1-7 and Figures 9-11 , the sensing seat 10, the pressure sensor 96 and the safety lock 12 are connected with each other through signal connection, so that the trigger seat 13 contacts the sensing seat 10 after the box door 11 is closed, at this time, the sensing seat 10 transmits an activation signal to the pressure sensor 96, so that the load of the bearing device 9 is changed when the user puts the property into the four-type library each time, the pressure sensor 96 records the liquid pressure at this time, when the box door 11 is opened and the property is taken out, the load of the bearing device 9 is reduced, the pressure sensor 96 detects that the liquid pressure is reduced, at this time, the safety lock 12 can reflect the situation to the user, so that the user can master the situation in the four-type library at the first time, the change of the property in the four-type library can be found in time, and the reliability of the device is improved.

[0039] The use method of the present application is as follows:

[0040] Before use, the carrier device 9 as a whole can be installed according to the specific needs of the user due to the detachable modular design of the carrier device 9. When the user needs to store large-volume property, the spacing between the carrier devices 9 can be appropriately increased during installation, thereby facilitating the storage of property. After installation is completed, the spout 902 is inserted into the interior of the rubber one-way valve 78 to achieve clamping.

[0041] During use, after the spout 902 is inserted into the rubber one-way valve 78, the liquid inside the liquid storage bin 2 enters the interior of the pressure guide hole 97 through the liquid guide pipe 71, the liquid guide hole 72, and the spout 902, and finally reaches the interface with the pressure sensor 96. At this time, the pressure sensor 96 can sense the pressure of the liquid. When the user places property on the top of the carrier device 9, the load of the carrier device 9 as a whole increases, the travel pipe 75 is displaced downward along the extension direction of the liquid guide pipe 71, the spring sheet 99 is also compressed synchronously, and the contact seat 901 moves to the interior of the installation groove 98, so that the overall height of the carrier device 9 is reduced, the height difference between the carrier device 9 and the liquid storage bin 2 is increased, and the pressure sensed by the pressure sensor 96 is increased. When the property is taken, the load of the carrier device 9 is reduced, the carrier device 9 is reset, the height difference between the carrier device 9 and the liquid storage bin 2 is reduced, and the pressure sensed by the pressure sensor 96 is reduced, thereby realizing the recognition of the change of the property on the top of the carrier device 9. After insertion, the rubber one-way valve 78 has a better fixing effect on the carrier device 9 as a whole, and also ensures that the rubber one-way valve 78 is reset after the carrier device 9 is disassembled and closed under the action of water pressure, preventing liquid leakage. A small amount of liquid that leaks during the reset process of the rubber one-way valve 78 will also remain in the cavity between the rubber one-way valve 78 and will not enter the four-type library. After the carrier device 9 is inserted and fixed, the power supply groove 95 is in contact with the power supply strip 6. At this time, the power supply battery 5 supplies power to the pressure sensor 96 through the power supply strip 6 and the power supply groove 95, so that the pressure sensor 96 is in a working state. When the carrier device 9 is in a disassembled state, the carrier device 9 stops supplying power to the pressure sensor 96, thereby realizing the carrier device 9 in the best power consumption. After the box door 11 is closed, the trigger seat 13 is in contact with the sensing seat 10. At this time, the sensing seat 10 transmits an activation signal to the pressure sensor 96, so that the user can place property into the four-type library each time. After the load of the carrier device 9 changes, the pressure sensor 96 records the liquid pressure at this time. When someone opens the box door 11 and takes out the property, the load of the carrier device 9 decreases, and the pressure sensor 96 detects that the liquid pressure decreases. At this time, the situation can be reflected to the user through the safety lock 12, so that the user can master the situation inside the four-type library in the first time.

Claims

1. A modular category 4 library characterized in that, The utility model provides a safe and reliable liquid pressure type safe, which comprises a box (1), a liquid storage bin (2) arranged on the top of the inner cavity of the box (1), a liquid injection hole (3) fixedly installed on the top of the box (1) and communicating with the inner cavity of the liquid storage bin (2), a depth measuring cover (4) fixedly installed on the top of the liquid injection hole (3), a power supply battery (5) fixedly installed on the back of the outer surface of the box (1) near the bottom, a power supply strip (6) fixedly installed on the back of the inner cavity of the box (1) near the middle, a liquid guiding device (7) fixedly installed on the bottom of the liquid storage bin (2) near the back, support plates (8) fixedly installed on the inner wall of the inner cavity of the box (1) on both sides, a bearing device (9) placed on the top of the support plates (8), an induction seat (10) fixedly installed on one side of the outer surface of the box (1), a box door (11) sleeved on the front of the box (1) near one side, a safety lock (12) fixedly installed on the front of the box door (11), a trigger seat (13) fixedly installed on one side of the box door (11), and the induction seat (10) and the trigger seat (13) being in contact with each other when the box door (11) is in a closed state. The bearing device (9) comprises a bearing plate (91), locking grooves (92) formed on the back of the bearing plate (91) near both sides, a fixing groove (93) formed on the back of the bearing plate (91) near the middle, a mounting seat (94) fixedly installed in the fixing groove (93), a power supply groove (95) formed on the back of the mounting seat (94), pressure sensors (96) fixedly sleeved on both sides of the mounting seat (94), a guide pressure hole (97) formed in the bottom of the fixing groove (93) and extending to the inner wall of the fixing groove (93) and communicating with the pressure sensors (96), mounting grooves (98) formed on the bottom of the bearing plate (91) near both sides, spring plates (99) fixedly installed on the top of the mounting grooves (98), contact seats (901) fixedly installed on the bottom of the spring plates (99), and insertion tubes (902) fixedly installed on the bottom of the locking grooves (92) and corresponding to one end of the guide pressure hole (97). The induction seat (10), the pressure sensors (96) and the safety lock (12) are connected to each other through signal connection, so that when the trigger seat (13) is in contact with the induction seat (10) after the box door (11) is closed, the induction seat (10) transmits an activation signal to the pressure sensors (96), the load of the bearing device (9) changes when the user puts the property into the safe every time, the pressure sensors (96) record the liquid pressure at this time, and when someone opens the box door (11) and takes out the property, the load of the bearing device (9) decreases, the pressure sensors (96) detect that the liquid pressure decreases, and the safety lock (12) transmits the situation to the user.

2. The modular category 4 library of claim 1, wherein, The liquid guiding device (7) comprises a liquid guiding pipe (71), the inner cavity of the liquid guiding pipe (71) is communicated with the inner cavity of the liquid storage bin (2), the outer surface of the liquid guiding pipe (71) is provided with liquid guiding holes (72), the liquid guiding holes (72) are distributed in a linear array, the corresponding position of the outer surface of the liquid guiding pipe (71) and the liquid guiding holes (72) is fixedly installed with a convex seat (73), the position of the outer surface of the liquid guiding pipe (71) below the liquid guiding holes (72) is fixedly installed with a spring seat (74), the corresponding position of the outer surface of the liquid guiding pipe (71) and the liquid guiding holes (72) is movably sleeved with a stroke pipe (75), the outer surface of the stroke pipe (75) is provided with a liquid storage chamber (76), the position of the outer surface of the liquid storage chamber (76) close to the bottom is fixedly installed with a connecting pipe (77), the inner cavity of the connecting pipe (77) is communicated with the inner cavity of the liquid storage chamber (76), the inside of the connecting pipe (77) is fixedly sleeved with a rubber one-way valve (78), the number of the rubber one-way valve (78) is two, the top of the spring seat (74) is fixedly installed with a supporting spring (79) at the position of the outer side of the liquid guiding pipe (71), and the top of the supporting spring (79) is fixedly connected with the bottom of the stroke pipe (75).

3. The modular category 4 library of claim 2, wherein, When the stroke pipe (75) is in the initial state, the inner wall of the liquid storage chamber (76) is in contact with the outer surface of the convex seat (73), and the axis of the connecting pipe (77) and the axis of the liquid guiding hole (72) are located on the same center line.

4. The modular category 4 library of claim 1, wherein, The power supply groove (95) is matched with the power supply strip (6), the power supply groove (95) is connected with the pressure sensor (96) through the power supply lead.

5. The modular category 4 library of claim 1, wherein, The bearing device (9) is slidably installed on the top of the supporting sheet (8), the rear cannula (902) is inserted into the inside of the connecting pipe (77), and the supporting sheet (8) is located below the contact seat (901) and is in contact with each other after the bearing device (9) is installed.

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