Rotary scale capable of silently adjusting height

Abstract

The utility model discloses a rotary scale capable of silently adjusting the height. The rotary scale comprises an anticoagulant scale, a scale body shell, a damping supporting rod, a damping metal ring and a lifting hook. According to the scheme, hovering at the preset height can be achieved through the damping supporting rod, rotation and positioning of the scale body shell are achieved through the damping metal ring arranged between the scale body shell and the damping supporting rod, and due to the fact that the damping metal ring is of a wavy annular structure, in the process that the scale body shell rotates relative to the damping supporting rod, hovering at the preset height can be achieved; the damping metal ring with the wave-shaped fluctuating structure can be continuously kept in a compressed state, and light-noise rotation can be realized as long as the contact position between the damping metal ring and the scale body shell is not polluted.

Description

Technical Field

[0001] This utility model relates to the technical field of blood collection equipment, and in particular to a rotary scale with adjustable height and silent operation. Background Technology

[0002] Existing automated blood collection systems collect whole blood from a donor's arm vein, process it through a centrifugation system to extract plasma, and repeat this process multiple times to finally obtain a certain amount of plasma. The weighing device used to hang the anticoagulant on the existing blood collection equipment has a fixed posture and position, making it inconvenient to use. Utility Model Content

[0003] In view of this, the present invention provides a rotary scale with adjustable height and silent operation. It can be suspended at a predetermined height by a damping strut, and the rotation and positioning of the scale shell can be achieved by a damping metal ring set between the scale shell and the damping strut. Since the damping metal ring has a wavy ring structure, the wavy damping metal ring will remain compressed during the rotation of the scale shell relative to the damping strut. As long as the contact point between the damping metal ring and the scale shell is not contaminated, low-noise rotation can be achieved.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A silent, height-adjustable rotary scale, comprising:

[0006] Anti-coagulation scales are used to weigh objects.

[0007] The outer shell of the weighing body covers the outside of the anti-condensation weighing body and serves to provide a mounting base;

[0008] The damping strut is hinged to the outer shell of the weighing body and is vertically installed to support the outer shell of the weighing body to the expected height. At the hinge position between the damping strut and the outer shell of the weighing body, there is a damping metal ring with a wave-shaped bend. The damping metal ring has a ring structure. The top and bottom walls of the damping metal ring abut against the outer shell of the weighing body and the damping strut, respectively. The damping metal ring is always compressed by the outer shell of the weighing body.

[0009] A hook is used to suspend objects. The hook is fixedly connected to the anti-condensation body and extends from the bottom wall of the body's outer shell.

[0010] Preferably, a base plate for supporting the damping metal ring is coaxially fixed to the top of the damping strut, and a pressure plate fixed to the damping strut is bolted inside the weighing body shell, the pressure plate pressing the weighing body shell tightly onto the damping metal ring.

[0011] Preferably, a protection device for limiting the maximum deformation position of the anticoagulant scale body is fixed on the scale body shell, and the bottom surface of the deformed anticoagulant scale body abuts against the protection device when the anticoagulant scale body weighs an object exceeding the maximum weighable weight.

[0012] Preferably, the protection device comprises a protection plug threadedly connected to the scale body shell, and the threaded tail end of the protection plug extends into the interior of the scale body shell and extends to the bottom of the anticoagulant scale body.

[0013] Preferably, the scale body shell has a protection cap threadedly connected to the protection plug, the protection cap abuts against the inner bottom wall of the scale body shell, and the threaded tail end of the protection plug extends out of the top end of the protection cap.

[0014] Preferably, the downward-pressing type trigger alarm is located at a position between the hook and the protection plug.

[0015] As can be seen from the above technical solutions, the rotary scale with mute height adjustment provided by the present application can realize hovering at a predetermined height through the damping support rod, and the rotation and positioning of the scale body shell are realized through the damping metal ring arranged between the scale body shell and the damping support rod. Since the damping metal ring has a wave-shaped annular structure, the wave-shaped undulating structure of the damping metal ring can continuously maintain a compressed state during the rotation of the scale body shell relative to the damping support rod. As long as the contact position between the damping metal ring and the scale body shell is not contaminated, the rotation can be realized with low noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a flow chart for representing a plasma collection method according to an exemplary embodiment;

[0018] Figure 2 is a schematic diagram for representing a plasma collection system according to an exemplary embodiment;

[0019] Figure 3 is a schematic diagram for representing a blood collection pump structure according to an exemplary embodiment;

[0020] Figure 4 is a schematic diagram for representing a tube clamp structure according to an exemplary embodiment;

[0021] Figure 5 is a schematic diagram for representing a blood collection pump structure according to an exemplary embodiment; Figure 4Figure 2 is an enlarged view of section A showing the structure of the tube sleeve according to an exemplary embodiment;

[0022] Figure 6 Figure 3 is a schematic view showing the structure of the plasma scale according to an exemplary embodiment;

[0023] Figure 7 Figure 4 is a view showing the structure of the plasma scale body according to an exemplary embodiment;

[0024] Figure 8 Figure 5 is a view showing the structure of the auxiliary arm according to an exemplary embodiment; Figure 7 Figure 6 is an enlarged view of section B showing the structure of the auxiliary arm according to an exemplary embodiment;

[0025] Figure 9 Figure 7 is a schematic view showing the structure of the height-adjustable rotary scale according to an exemplary embodiment;

[0026] Figure 10 Figure 8 is a schematic view showing the structure of the anticoagulant scale body according to an exemplary embodiment;

[0027] Figure 11 Figure 9 is a schematic view showing the structure of the damping metal ring according to an exemplary embodiment;

[0028] Figure 12 Figure 10 is a view showing the structure of the protection plug according to an exemplary embodiment; Figure 9 Figure 11 is an enlarged view of section C showing the structure of the protection plug according to an exemplary embodiment;

[0029] Figure 13 Figure 12 is a view showing the structure of the protection cap according to an exemplary embodiment; Figure 10 Figure 13 is an enlarged view of section D showing the structure of the protection cap according to an exemplary embodiment.

[0030] Reference Signs:

[0031] 1. Body; 11. Identity verification module; 12. Barcode scanning module; 13. Control module; 14. Air detector; 15. Filter bracket; 16. Pressure sensor; 2. Blood collection pump; 3. Anticoagulant pump; 4. Red blood cell detector; 5. Anticoagulant scale; 51. Mounting platform; 52. Damping strut; 53. Saline scale; 54. Anticoagulant scale body; 541. Connecting block; 542. Hook; 543. Pressure plate; 544. Damping metal ring; 545. Base plate; 546. Down-press trigger alarm; 547. Protective bolt; 548. Protective cap; 55. Crushing unit; 55 1. Disassembly / removal port; 552. Transition section; 56. Pump body housing; 561. Insertion port; 57. Lifting unit; 58. Pipe clamp; 581. Pipe sleeve; 582. Pipeline; 583. Reduction diameter blocking section; 59. Weighing body housing; 6. Centrifuge module; 7. Plasma weighing clamp; 71. Plasma weighing body; 72. Support body; 721. Second arc-shaped section; 722. Tie end; 73. Secondary support arm; 731. First arc-shaped section; 732. Third arc-shaped section; 733. Torsion spring mounting groove; 74. Main support arm; 741. Clamping part; 75. Limiting and lifting end; 751. Limiting part; 76. Tension spring. Detailed Implementation

[0032] This utility model discloses a rotary scale with adjustable height and silent operation. It can be suspended at a predetermined height by a damping strut, and the rotation and positioning of the scale shell is achieved by a damping metal ring set between the scale shell and the damping strut. Since the damping metal ring has a wavy ring structure, the wavy damping metal ring will remain compressed during the rotation of the scale shell relative to the damping strut. As long as the contact point between the damping metal ring and the scale shell is not contaminated, low-noise rotation can be achieved.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This disclosure provides a plasma collection system and method in exemplary embodiments, such as Figure 1 As shown, Figure 1 This is a flowchart illustrating a plasma collection method according to an exemplary embodiment; Figure 2 This is a schematic diagram illustrating a plasma collection system according to an exemplary embodiment; Figure 3 This is a schematic diagram illustrating the structure of a blood collection pump according to an exemplary embodiment; Figure 4is a schematic view showing a tube clamp structure according to an exemplary embodiment; Figure 5 is a schematic view showing a tube clamp structure according to an exemplary embodiment; Figure 4 is an enlarged view of portion A showing a tube sleeve structure in FIG. 1; Figure 6 is a schematic view showing a plasma scale clamp structure according to an exemplary embodiment; Figure 7 is a view showing a plasma scale body structure according to an exemplary embodiment; Figure 8 is a schematic view showing a tube clamp structure according to an exemplary embodiment; Figure 7 is an enlarged view of portion B showing a sub-arm structure in FIG. 1; Figure 9 is a schematic view showing a rotation scale structure capable of silent height adjustment according to an exemplary embodiment; Figure 10 is a schematic view showing an anticoagulant scale body structure according to an exemplary embodiment; Figure 11 is a schematic view showing a damping metal ring structure according to an exemplary embodiment; Figure 12 is a schematic view showing a tube clamp structure according to an exemplary embodiment; Figure 9 is an enlarged view of portion C showing a protection plug structure in FIG. 1; Figure 13 is a schematic view showing a tube clamp structure according to an exemplary embodiment; Figure 10 is an enlarged view of portion D showing a protection cap structure in FIG. 1. The following is explained in conjunction with Figures 1 to 13 .

[0035] Some specific embodiments described below are intended to facilitate understanding of the present embodiments by those skilled in the art, and the present embodiments are not limited to the specific embodiments described below.

[0036] Referring to Figure 1 and Figure 2 , an exemplary embodiment of the present disclosure provides a plasma collection system, which comprises:

[0037] a blood collection pump 2 configured to deliver blood in a user to a centrifugation module 6 through a tube 582;

[0038] the centrifugation module 6 configured to separate plasma from blood after centrifugation;

[0039] a plasma scale clamp 7 configured to fix a plasma container and obtain a weight of the plasma container;

[0040] an air detector 14 configured to cover a portion of the tube 582 between the user and the centrifugation module 6 and monitor air bubbles in the tube 582;

[0041] a red blood cell detector 4 configured to cover a portion of the tube 582 between the centrifugation module 6 and the plasma container and monitor a concentration of red blood cells in the blood;

[0042] an anticoagulant scale 5 configured to provide a fixed position for an anticoagulant container and obtain a weight in real time;

[0043] an anticoagulant pump 3 for delivering anticoagulant into the centrifugation module 6;

[0044] a filter support 15 for supporting a filter for filtering air bubbles in the blood in the pipeline 582 between the replacement blood pump 2 and the centrifugation module 6;

[0045] a control module 13 in communication with the anticoagulant pump 3 and the blood pump 2 and for changing the operating speed of the anticoagulant pump 3 and the blood pump 2;

[0046] a pressure sensor 16 in communication with the control module 13 and for acquiring the pipeline pressure in real time, the control module 13 changing the operating speed of the anticoagulant pump 3 and the blood pump 2 according to the pipeline pressure.

[0047] For example, referring to Figure 1 and Figure 2 , the blood collection system comprises a body 1 in the shape of a cuboid and for being placed at a predetermined blood collection position. The blood pump 2 is fixedly connected to the top surface of the body 1 and located at one side of the body 1, for providing power for the blood in the pipeline 582 to flow along the pipeline 582, part of the body structure of the blood pump 2 being hidden inside the body 1, the pipeline 582 connection part of the blood pump 2 being exposed above the top surface of the body 1, the blood pump 2 being in communication with the control module 13, for example, wireless signal connection or cable communication, the operation of the blood pump 2 being regulated by the control module 13.

[0048] For example, referring to Figure 3 and Figure 4 , the blood pump 2 of the automatic tube dismounting device disclosed in the present application comprises a lifting unit 57 fixedly connected inside the body 1, a tube clamp 58 fixed to the top end of the lifting unit 57, a tube sleeve 581 capable of being inserted into the tube clamp 58 and being transversely clamped with the tube clamp 58, a pump body shell 56 fixed to the top surface of the body 1, and a squeezing unit 55 rotatably connected inside the pump body shell 56, the lifting unit 57 comprising an electric push rod fixedly connected in a vertical posture to the inner wall of the body 1, the piston rod end of the electric push rod extending upward and being capable of extending out of the top surface of the body 1 and above the body 1.

[0049] For example, referring to Figure 3 and Figure 5Two pipe insertion openings 561 are formed on the pump body shell 56 for the pipeline 582 to pass through, and the two pipe insertion openings 561 are located on the same side of the pump body shell 56, for example, both of the pipe insertion openings 561 are formed on the side of the pump body shell 56 facing the electric push rod, and the two pipe insertion openings 561 are spaced apart. The inside of the pump body shell 56 is hollow, and both of the pipe insertion openings 561 pass through the pump body shell 56 in the transverse direction, so that the pipeline 582 can extend into one pipe insertion opening 561 and then extend out of the other pipe insertion opening 561. The rotation axis of the extrusion unit 55 is vertically arranged, and the driving part of the extrusion unit 55 is hidden in the inside of the machine body 1, for example, the extrusion unit 55 is realized by a motor rotating on the axis inside the pump body shell 56, and the aforementioned motor is fixedly connected inside the machine body 1 with the output shaft vertically upward. The top edge of the extrusion unit 55 protrudes outward close to the pump body shell 56, and the space for the pipeline 582 to extend into is formed below the top edge of the extrusion unit 55. After the pipeline 582 extends in, it is compressed in sections under the extrusion of the extrusion unit 55, and then drives the medium inside the pipeline 582 to flow along the pipeline 582, that is, the extrusion unit 55 is consistent with the peristaltic pump principle. The top edge of the extrusion unit 55 is provided with a disassembly pipe opening 551 for the pipeline 582 to vertically extend into the inside of the pump body shell 56, and the disassembly pipe opening 551 has two and is spaced apart. The two disassembly pipe openings 551 can correspond to the two pipe insertion openings 561 respectively after the extrusion unit 55 is rotated to a predetermined position. The disassembly pipe opening 551 penetrates part of the top edge of the extrusion unit 55 in the vertical direction and communicates with the inside of the pump body shell 56, and the other part of the top edge of the extrusion unit 55 is gap-fitted with the outer wall of the pump body shell 56. The gap between the aforementioned other part of the top edge of the extrusion unit 55 and the outer wall of the pump body shell 56 is smaller than the outer diameter of the pipeline 582, for example, the outer diameter of the pipeline 582 is 1 cm, and the aforementioned gap between the other part of the top edge of the extrusion unit 55 and the outer wall of the pump body shell 56 can be 5 mm. The top edge of the extrusion unit 55 on one side of the disassembly pipe opening 551 has a transition part 552 in the form of an inclined surface, and the inclined surface of the transition part 552 is arranged away from the pump body shell 56 in the direction of the disassembly pipe opening 551. The transition part 552 extends from the bottom edge of the disassembly pipe opening 551 to the top edge of the disassembly pipe opening 551.

[0050] Referring to Figure 4 and Figure 6The pipe clamp 58 has two, one of which is fixedly connected to the top end of the piston rod of the electric push rod serving as the lifting unit 57, for example, threaded to the top end of the piston rod of the electric push rod, and this pipe clamp 58 is always above the top surface of the body 1, that is, when the piston rod of the electric push rod is retracted to the maximum extent, the aforementioned pipe clamp 58 is also exposed from the top surface of the body 1. The other pipe clamp 58 is fixedly connected to the top surface of the body 1 on the side of the aforementioned pipe clamp 58 fixed to the electric push rod. In order to achieve the sealing of the body 1, a rubber ring or a sealing sleeve structure can also be fixed to the bottom end of the pipe clamp 58 on the body 1, which is used to achieve the sealing of the body 1 at this position by extruding the aforementioned sealing sleeve when the electric push rod is retracted to the maximum extent. The pipe clamp 58 has a c-shaped structure, that is, an opening is formed on the outer wall of the pipe clamp 58 for the pipe 582 to be inserted into the inside of the pipe clamp 58 after being extruded, that is, the opening on the pipe clamp 58 has a diameter-reducing blocking part 583 at one end facing the pump body shell 56. The pipe sleeve 581 is used to be fixedly connected to the pipe 582, for example, when the pipe 582 used is purchased externally, the pipe sleeve 581 can be sleeved on the pipe 582 at a predetermined position and then fixedly connected to the pipe 582 by bonding. After the pipe 582 is installed in the pipe clamp 58, part of the pipe sleeve 581 is also built into the pipe clamp 58, and the end of the pipe sleeve 581 facing the pump body shell 56 abuts against the diameter-reducing blocking part 583. The diameter-reducing blocking part 583 prevents the pipe sleeve 581 from moving towards the pump body shell 56, that is, when the extrusion unit 55 extrudes the pipe 582 between the pump body shell 56 and the extrusion unit 55, the pipe sleeve 581 can overcome the tendency of the pipe 582 to move towards the inside of the pump body shell 56 after being extruded, so that the pipe 582 can maintain the stability of the current position and posture; when the pipe 582 used is matched with the aforementioned pipe clamp 58, the pipe sleeve 581 is already fixed on the pipe 582, and there is no need to fix the pipe sleeve 581 at a predetermined position on the pipe 582. It should be understood that the two pipe clamps 58 can also be fixed with the lifting units 57 respectively, as long as the two pipe clamps 58 can generate a height difference under the drive of the two lifting units 57.

[0051] When the pipeline 582 inside the pump body shell 56 is disassembled, the control extrusion unit 55 is rotated to the position where the disassembly pipe port 551 corresponds to the insertion pipe port 561, at this time, the two disassembly pipe ports 551 correspond to the positions of the two insertion pipe ports 561, the electric push rod is controlled to lift one pipe clamp 58, at this time, the pipeline 582 connected to the aforementioned pipe clamp 58 is stretched and lifted, and the pipeline 582 on the aforementioned pipe clamp 58 is lifted from inside the insertion pipe port 561 to inside the disassembly pipe port 551, with the rotation of the extrusion unit 55, the aforementioned part of the pipeline 582 is abutted by the transition part 552 on the corresponding disassembly pipe port 551 and continuously subjected to extrusion, and the aforementioned part of the pipeline 582 can be gradually extruded from the gap between the top edge of the extrusion unit 55 and the pump body shell 56 by the transition part 552 with the rotation of the extrusion unit 55, when the extrusion unit 55 rotates one circle, the pipeline 582 originally installed between the pump body shell 56 and the top edge of the extrusion unit 55 can be extruded by the transition part 552, at this time, only the pipe sleeve 581 with the pipeline 582 needs to be removed from the pipe clamp 58, so that the pipeline 582 can be quickly disassembled. As for the installation of the pipeline 582, since the aforementioned extrusion unit 55, pump body shell 56 and pipe clamp 58 are improved based on the peristaltic pump and blood sampling pump in the prior art, the installation of the pipeline 582 is consistent with the installation mode of the peristaltic pump, blood sampling pump and the like in the prior art, and will not be described here.

[0052] With reference to Figure 1 , the centrifugal module 6 is fixed to the top surface of the machine body 1 and located at the central position of the machine body 1, used for centrifuging the whole blood gathered at the centrifugal module 6 through the pipeline 582, and separating the plasma, the centrifugal module 6 is in communication connection with the control module 13, for example, wireless signal connection or cable communication, and the operation of the centrifugal module 6 is regulated by the control module 13.

[0053] With reference to Figure 1 and Figure 5 , the plasma weighing clamp 7 is fixed to the top surface of the machine body 1 and extends outside the machine body 1 from one side of the machine body 1, used for fixing the plasma container, for example, can hang or clamp the plasma container, the plasma weighing clamp 7 has a weighing function and is in communication connection with the control module 13, for example, wireless signal connection or cable communication, and the control module 13 can know the weight of the plasma in the plasma container according to the signal sent by the plasma weighing clamp 7, and judge whether the blood sampling process is normal or not. For example, the signal representing the weight of the plasma inside the plasma container sent by the plasma weighing clamp 7 to the control module 13 is different from the expected plasma weight calculated by the control module 13 through the number of revolutions of the blood sampling pump 2, or the difference between them exceeds the threshold range, the control module 13 can choose to control the blood sampling pump 2 to stop, or can send an alarm signal to prompt the operator to check.

[0054] With reference to Figure 6 andFigure 7 The plasma scale 7 is a multi-purpose scale support convenient to disassemble and assemble, which comprises a plasma scale body 71 fixed in the inside of the machine body 1, a support main body 72 fixed at the end of the plasma scale body 71, two main support arms 74 hinged at the end of the support main body 72, and two auxiliary support arms 73 hinged on the two main support arms 74. The plasma scale body 71 is fixed in the inside of the machine body 1 in a horizontal posture and extends to the outside of the machine body 1, the support main body 72 is fixedly connected to the end of the plasma scale body 71 extending to the outside of the machine body 1 in a horizontal posture, the support main body 72 extends along the length direction of the plasma scale body 71, one end of the support main body 72 is fixedly connected to one end of the plasma scale body 71, and the other end of the support main body 72 extends from the side wall of the machine body 1 to the outside of the machine body 1. The two main support arms 74 are oppositely distributed at the two sides of the end of the support main body 72 extending to the outside of the machine body 1, one end of the main support arm 74 is hinged to the end of the support main body 72, and the other end extends to the outside of the machine body 1 in a horizontal posture, and the rotation axis of the main support arm 74 is vertically arranged. One end of the auxiliary support arm 73 is hinged to the main support arm 74, and the other end extends to the inside of the space between the two main support arms 74 and extends to the direction away from the machine body 1.

[0055] With reference to Figure 6 and Figure 8, the plasma container is inserted into the space between the two main branch arms 74, the two auxiliary branch arms 73 are pressed to rotate towards the body 1, and the plasma container is pressed to rotate towards the body 1 by the two auxiliary branch arms 73, so that the plasma container is clamped between the two main branch arms 74 and the two auxiliary branch arms 73.The side wall of the auxiliary supporting arm 73 away from the machine body 1 is provided with a first arc surface part 731 for accommodating the cylindrical plasma container, which increases the contact area between the auxiliary supporting arm 73 and the plasma container. For the cylindrical plasma container with a smaller volume, the end of the supporting body 72 away from the machine body 1 is provided with a second arc surface part 721, and the side wall of the auxiliary supporting arm 73 towards the machine body 1 is provided with a third arc surface part 732. The cylindrical plasma container with a smaller volume can continue to enter the space between the two auxiliary supporting arms 73 after entering the space between the two main supporting arms 74. The two auxiliary supporting arms 73 rotate outward in a mutually separated manner after being pressed, and the second arc surface part 721 and the third arc surface part 732 respectively increase the contact area with the plasma container, so that the plasma container can be more stably fixed at the current position.

[0056] There are multiple air detectors 14, which can be fixed to the side wall of the machine body 1 or the top surface of the machine body 1. The position of the air detector 14 can be adaptively set according to the pipeline 582 to be detected by the air detector 14. At least one air detector 14 is located between the user and the filter support 15, and at least one air detector 14 is located between the filter support 15 and the blood collection pump 2. The air detector 14 is in communication connection with the control module 13, for example, wireless signal connection or cable communication. The control module 13 can determine whether there is a bubble affecting the blood collection process in the current section of the pipeline 582 according to the detection signal sent by the air detector 14, and change the expected plasma weight calculated by the number of rotations of the blood collection pump 2 in real time according to the signal indicating the bubble. For some bubbles that do not affect the blood collection process, they can be ignored. For bubbles that may affect the blood collection process, the control module 13 can control the blood collection pump 2 to stop or send an alarm signal to prompt the operator to check. The operator can set the judgment rule of the bubble affecting the blood collection process, such as the size of the bubble or the total amount of the bubble per unit time.

[0057] The red blood cell detector 4 is fixed to the top surface of the machine body 1 and located on one side of the machine body 1. The red blood cell detector 4 is separately arranged on the opposite sides of the top surface of the machine body 1 with the blood collection pump 2, and is located between the centrifugal module 6 and the plasma scale clamp 7. The red blood cell detector 4 can detect the plasma flowing out after being centrifuged by the centrifugal module 6, and can timely alarm when red blood cells overflow. The red blood cell detector 4 is in communication connection with the control module 13, for example, wireless signal connection or cable communication. The control module 13 can control the blood collection pump 2 to stop in time after obtaining the red blood cell overflow signal sent by the red blood cell detector 4, so as to reduce the possibility of contamination of the plasma by the overflowed red blood cells.

[0058] Referring to Figure 9 and Figure 10The anticoagulant scale 5 is fixed on the body 1 and extends from the top surface of the body 1 to above the body 1, has a weighing function and is in communication connection with the control module 13, for example, wireless signal communication or cable communication, the signal sent by the anticoagulant scale 5 can represent the weight of the remaining anticoagulant, that is, the weight of the anticoagulant injected into the pipeline 582, since the anticoagulant enters the centrifugal module 6 together with the whole blood and flows into the inside of the plasma container after centrifugation, the control module 13 can obtain a more accurate judgment of the weight of the plasma in the plasma container, reducing the possibility of false alarm or overtime alarm.

[0059] With reference to Figure 9 and Figure 10 The anticoagulant scale 5 is a rotating scale with adjustable height and mute function disclosed in the present application, which comprises a damping support rod 52 fixedly connected with the body 1, a scale body shell 59 rotatably connected to the top end of the damping support rod 52, an anticoagulant scale body 54 fixedly arranged in the inside of the scale body shell 59, a hook 542 fixedly arranged and extending out of the scale body shell 59, and a protection device fixedly arranged in the inside of the scale body shell 59 for limiting the maximum deformation position of the anticoagulant scale body 54. The anticoagulant scale body 54 is the same as the scale body used in the blood collection device in the prior art, and thus will not be described again. In order to connect the hook 542 with the anticoagulant scale body 54 and realize the weighing and hooking effects of the anticoagulant scale body 54, the hook-shaped bottom end of the hook 542 extends out of the scale body shell 59, the top end of the hook 542 extends into the inside of the scale body shell 59 and is screw-connected with a connecting block 541, the connecting block 541 is in a horizontally arranged L-shaped structure and is attached to the anticoagulant scale body 54, and is screw-fixed on the anticoagulant scale body 54.

[0060] With reference to Figure 10 and Figure 11, the bottom end of the damping support rod 52 extends into the inside of the machine body 1 and is fixedly connected to the inner wall of the machine body 1, the top end of the damping support rod 52 extends upwards above the machine body 1, the top end of the damping support rod 52 is coaxially fixedly connected with a horizontally arranged bottom plate 545, the damping support rod 52 penetrates the bottom plate 545 along the length direction of the damping support rod 52, a wave-shaped bent damping metal ring 544 is coaxially sleeved on the bottom plate 545, the bottom surface of the weighing body shell 59 abuts against the damping metal ring 544, the top end of the damping support rod 52 penetrates the weighing body shell 59 along the vertical direction and extends into the inside of the weighing body shell 59, a pressing plate 543 abutting against the inner bottom wall of the weighing body shell 59 is bolted in the inside of the weighing body shell 59, the pressing plate 543 is fixed to the top end of the damping support rod 52 by bolts, that is, the weighing body shell 59 and the damping support rod 52 can relatively rotate, the weighing body shell 59 is supported on the damping support rod 52 through the wave-shaped bent damping metal ring 544, the weighing body shell 59 always exerts pressure on the damping metal ring 544, the damping metal ring 544 is always in a deformed state, the material of the damping metal ring 544 can be spring steel or elastic alloy, the damping support rod 52 enables the weighing body shell 59 and the anti-coagulation weighing body 54 to stay at the expected height, the damping metal ring 544 enables the weighing body shell 59 and the anti-coagulation weighing body 54 to rotate relative to the damping support rod 52 and stably stay at the current position and keep the current posture.

[0061] With reference to Figure 12 and Figure 13The bottom wall of the scale body 59 has an upwardly protruding mounting platform 51, and the end of the anticoagulant scale body 54 away from the hook 542 is fixed to the mounting platform 51. The protection device is located on the bottom wall of the scale body 59 on the side of the mounting platform 51. Due to the presence of the mounting platform 51, the protection device can be hidden below the bottom surface of the anticoagulant scale body 54. The protection device includes a protection pin 547 threadedly connected to the scale body 59 and extending into the interior of the scale body 59. The head of the protection pin 547 abuts against the bottom wall of the scale body 59, and the threaded tail of the protection pin 547 extends vertically through the bottom wall of the scale body 59 to the interior of the scale body 59. By rotating the protection pin 547, the height of the protection pin 547 extending into the scale body 59 can be changed. Above the threaded tail of the protection pin 547 corresponds to the anticoagulant scale body 54. When the object weighed by the anticoagulant scale body 54 is within the calibrated weighing range, a gap is formed between the threaded tail of the protection pin 547 and the bottom surface of the anticoagulant scale 5. When the object weighed by the anticoagulant scale body 54 is greater than the maximum calibrated weight, the anticoagulant scale body 54 bends under the action of gravity towards the hook 542. At this time, the protection pin 547 abuts against the bottom surface of the anticoagulant scale body 54 to provide support for the anticoagulant scale body 54 and prevent the anticoagulant scale body 54 from being damaged by excessive force. In order to enable the protection pin 547 to be more stably maintained at the current position and current height, a protection cap 548 with a vertical axis is provided on the bottom wall inside the scale body 59. The protection cap 548 is threadedly connected to the protection pin 547 and abuts against the interior bottom wall of the scale body 59. The threaded tail of the protection pin 547 is exposed from the top end of the protection cap 548. The protection cap 548 is used to fix the protection pin 547 at the current position.

[0062] With reference to Figure 12 and Figure 13 In order to be able to discover in time when the object weighed by the anticoagulant scale body 54 is greater than the maximum calibrated weight, a downward-pressing trigger alarm 546 is fixedly connected to the bottom wall inside the scale body 59. Since the alarm of the downward-pressing trigger alarm 546 needs to be pressed for a certain stroke to trigger, the downward-pressing trigger alarm 546 is located between the protection pin 547 and the hook 542. When the downward-pressing trigger alarm 546 alarms, the protection pin 547 can provide support for the anticoagulant scale body 54 to reduce the possibility of damage to the anticoagulant scale body 54.

[0063] The anticoagulant pump 3 is fixed on the top surface of the body 1 and located at one side of the blood collection pump 2, the position of the anticoagulant pump 3 corresponds to the position of the anticoagulant scale 5, the anticoagulant pump 3 is in communication connection with the control module 13, for example, wireless signal communication or cable communication, the anticoagulant pump 3 is regulated by the control module 13, the control module 13 can calculate the weight of the anticoagulant injected into the pipeline 582 according to the number of revolutions of the anticoagulant pump 3, and can obtain more accurate judgment of the weight of the plasma in the plasma container by combining the signal representing the weight of the anticoagulant injected into the pipeline 582 sent by the anticoagulant scale 5, thereby reducing the possibility of false alarm or timeout alarm. The structure of the anticoagulant pump 3 is the same as that of the aforementioned blood collection pump 2, and thus will not be described again.

[0064] The filter support 15 is fixed in a vertical posture on the side wall of the body 1 and located at one side of the partial air detector 14, the filter support 15 is used to fix the filter on the consumable, and the filter on the consumable is used to filter the air bubbles in the blood in the pipeline. The outlet end pipeline 582 of the filter on the filter support 15 is fixed with the air detector 14, which is used to reduce the possibility that the air bubbles generated after the blood passes through the filter on the filter support 15 are not discovered in time, thereby negatively affecting the blood collection process.

[0065] The pressure sensor 16 is fixed on the side wall of the body 1 and located at one side of the filter support 15, the pressure sensor 16 obtains the pressure in the pipeline 582 in real time, when the pressure in the pipeline 582 increases or decreases, the control module 13 can select to control the speed of the blood collection pump 2 to decrease or increase according to the signal fed back by the pressure sensor 16. For example, when the pressure of the pipeline 582 exceeds the threshold value, the speed of the blood collection pump 2 is continuously reduced until the pressure returns to normal; when the pressure of the pipeline 582 is less than the threshold value, the speed of the blood collection pump 2 is continuously increased until the pressure returns to normal; when the pressure of the pipeline 582 is in the expected range, the blood collection pump 2 operates at the maximum speed.

[0066] The control module 13 is fixed on the body 1 and has a touchable input display extending above the body 1 from the top surface of the body 1, through the touchable input display, the operator can modify the control logic, parameters and other information of the control module 13, and modify the relevant parameters of each component in real time according to the display on the touchable input display during the blood collection process.

[0067] In this embodiment, when blood is collected, a pipeline 582 is connected to the blood collection pump 2, the pipeline 582 has a blood collection needle at the end and is connected to the blood vessel of the user (i.e. the blood donor), the blood collection pump 2 operates to transport the blood in the pipeline 582, the blood in the pipeline 582 passes through the air detector 14, the filter on the filter support 15, the pressure sensor 16, the blood collection pump 2, the centrifugal module 6 and the red blood cell detector 4 in turn and enters the inside of the plasma container fixed on the plasma scale clamp 7, in this process, the anticoagulant fixed on the anticoagulant scale 5 is transported into the inside of the centrifugal module 6 under the action of gravity and the anticoagulant pump 3 and is centrifuged together after mixing with the blood, and finally the mixed liquid of the plasma and the anticoagulant enters the inside of the plasma container. Among them, the pressure sensor 16 monitors the pressure in the pipeline 582 in real time and feeds back to the control module 13, the air detector 14 detects the air bubble condition in the current paragraph of the pipeline 582 in real time and feeds back to the control module 13, the rotating speed and the number of revolutions of the blood collection pump 2 are fed back to the control module 13 in real time, the operation condition of the centrifugal module 6 is fed back to the control module 13 in real time, the red blood cell detection result of the pipeline 582 is fed back to the control module 13 in real time, the plasma scale clamp 7 feeds back the weight information to the control module 13 in real time, the anticoagulant scale 5 feeds back the weight information to the control module 13 in real time, and the anticoagulant pump 3 feeds back the rotating speed and the number of revolutions to the control module 13 in real time. The control module 13 displays the information fed back by the above-mentioned components on the touchable input type display screen, calculates whether the current blood collection process is in the expected state according to the information fed back by the above-mentioned components, and when the blood collection process deviates from the expected state, the control module 13 alarms on the touchable input type display screen and can choose to control the blood collection pump 2 and the anticoagulant pump 3 to stop. By automatically collecting and centrifuging the blood, separating the plasma, and transporting the red blood cells, the traditional manual collection method is replaced, the burden of medical personnel is reduced, the blood collection efficiency is accelerated, and the whole blood collection process is completed in a closed circulation environment, avoiding the possibility of cross infection; at the same time, the pipeline pressure in the blood collection process is monitored in real time, the blood collection speed is changed according to the change of the pipeline pressure, so that the blood collection process can adapt to the change of the physiological state of the user, and the discomfort of the user in the blood collection process is reduced.

[0068] In an example embodiment of the present disclosure, referring to Figure 1 The identity verification module 11 is in communication connection with the control module 13 and is used to acquire at least the identity information and / or biological information of the user.

[0069] For example, referring to Figure 1The identity authentication module 11 includes a sensor fixed on the body 1 and having an NFC reading function. The identity authentication module 11 is usually arranged at the top surface of the body 1 where the side wall meets, so as to facilitate the user or operator to use. The identity authentication module 11 is in communication connection with the control module 13, for example, wireless signal connection, or cable communication, for example, by reading the user's identity card, the age, gender, height, weight, medical history and other information of the user can be obtained through networking, and after the foregoing information is fed back to the control module 13, the control module 13 can select a blood donation strategy suitable for the current user in the preset database, for example, a specific blood collection speed, a specific blood collection amount, etc. In addition, the control module 13 can also display the user information obtained by the identity authentication module 11 on the touch input display, so that the operator (for example, a doctor or a nurse) can compare whether the blood donor is consistent with the registered information.

[0070] In the embodiment, the identity authentication module 11 can also be a fingerprint recognition device or a face recognition device, for example, an infrared fingerprint sensor, which can obtain the identity information and historical physiological health status of the user from the database by scanning the fingerprint of the user, and display the information on the touch input display, so that the operator can compare whether the blood donor is consistent with the registered information.

[0071] In an example embodiment of the present disclosure, referring to Figure 1 The barcode scanning module 12 is in communication connection with the control module 13, and is used to match the identity information with the barcode information after obtaining the barcode information of the plasma container.

[0072] In an example embodiment, referring to Figure 1 The barcode scanning module 12 includes a sensor fixed on the body 1 and having an infrared scanning function, for example, fixed on one side of the identity authentication module 11. The barcode scanning module 12 is in communication connection with the control module 13, for example, wireless signal connection, or cable communication. The barcode scanning module 12 feeds back the current plasma container information to the control module 13 by scanning the barcode on the plasma container, and the control module 13 can match the current plasma container information with the user information obtained by the identity authentication module 11, so as to distinguish the plasma obtained from different users. In addition, the barcode scanning module 12 can also scan the barcode on the anticoagulant container and feed back to the control module 13 for record, and the control module 13 can calculate the expected amount of anticoagulant according to the blood donation strategy provided to the current user. When the remaining anticoagulant is insufficient to support the blood donation process of the current user after the blood donation of the previous user is completed, the control module 13 can display a prompt information on the touch input display, or the control module 13 can control the blood collection pump 2 to keep in a parking state and refuse to start blood collection.

[0073] In an example embodiment of the present disclosure, referring to Figure 1The control module 13 is configured to change the operating speed of the blood sampling pump 2 according to the identity information and / or biological information of the user.

[0074] For example, referring to Figure 1 The vital sign sensing device can also be arranged on the user to obtain information such as the heart rate, blood pressure, and respiratory rate of the user, and the vital sign sensing device is in communication connection with the control module 13, for example, wireless signal connection or cable communication. The vital sign sensing device transmits the vital sign information of the user to the control module 13 in real time, and the control module 13 determines the current blood sampling strategy of the user according to the pre-built blood sampling scheme, and then adjusts the rotating speed of the blood sampling pump 2 and the anticoagulant pump 3 in real time.

[0075] In this embodiment, the pressure sensor 16 can feed back the pipeline pressure to the control module 13, and the control module 13 can control the blood sampling pump 2 according to the pipeline pressure fed back by the pressure sensor 16 and the signal fed back by the vital sign sensing device. For example, after blood sampling starts, the pressure of the pipeline 582 is monitored in real time, the pipeline pressure is represented by the height of the mercury column, and the initial speed of the blood sampling pump 2 is set to 100 rpm:

[0076] When the pressure of the pipeline 582 is less than -80 mmHg, blood sampling is stopped;

[0077] When -79 mmHg < the pressure of the pipeline 582 < -51 mmHg, the speed of the blood sampling pump 2 is increased, and the speed of the blood sampling pump 2 is increased by 100 / (-51-(-79)) rpm each time the pressure of the pipeline 582 is increased by 1 mmHg;

[0078] When -50 mmHg < the pressure of the pipeline 582 < 50 mmHg, the blood sampling pump 2 operates at the initial speed of 100 rpm;

[0079] When 51 mmHg < the pressure of the pipeline 582 < 79 mmHg, the speed of the blood sampling pump 2 is decreased, and the speed of the blood sampling pump 2 is decreased by 100 / (79-51) rpm each time the pressure of the pipeline 582 is increased by 1 mmHg;

[0080] When the pressure of the pipeline 582 is less than or equal to 80 mmHg, blood sampling is stopped.

[0081] For example, referring to Figure 1 The physiological saline container is provided with a physiological saline scale 53 for providing a fixed position and obtaining the weight in real time. The blood sampling pump 2 has a reverse working state, and when the blood sampling pump 2 is reversed, the physiological saline is flushed through the pipeline 582 to the centrifugal module 6 and then to the user.

[0082] For example, referring to Figure 1The physiological saline scale 53 is fixed on the body 1 and extends above the body 1 from the top surface of the body 1, and the physiological saline scale 53 and the anticoagulant scale 5 are arranged on opposite sides of the body 1. The physiological saline scale 53 is in communication connection with the control module 13, for example, wireless signal connection or cable communication. The physiological saline scale 53 feeds back the weight of the physiological saline remaining in the physiological saline container to the control module 13, so that the control module 13 determines the weight of the used physiological saline and can determine the progress of the return process accordingly. It should be understood that the physiological saline flows into the inside of the centrifugal module 6 by gravity, and therefore there must be a valve body on the body 1 which is controlled to be started or stopped by the control module 13. The physiological saline scale 53 has the same structure as the anticoagulant scale 5 described above, and therefore will not be described again.

[0083] When the pressure sensor 16 monitors the pressure of the pipeline 582 in real time during the reverse return of the blood collection pump 2, for example, the pipeline pressure is represented by the height of the mercury column, and the initial speed of the blood collection pump 2 is set to 100 rpm:

[0084] When the pressure of the pipeline 582 is greater than or equal to 260 mmHg, the return is stopped;

[0085] When the pressure of the pipeline 582 is greater than 101 mmHg and less than 259 mmHg, the speed of the blood collection pump 2 is controlled to be reduced, and for each 1 mmHg increase in the pressure of the pipeline 582, the speed of the blood collection pump 2 is reduced by 100 / (259-101) rpm;

[0086] When the pressure of the pipeline 582 is greater than 0 mmHg and less than 100 mmHg, the blood collection pump 2 operates at 100 rpm;

[0087] When the pressure of the pipeline 582 is less than 0 mmHg, the return is stopped.

[0088] In an example embodiment of the present disclosure, with reference to Figure 1 The anticoagulant scale 5 has a first starting weight which is the same as the initial weight of a unit of anticoagulant, and the anticoagulant scale 5 allows the control module 13 to start the blood collection pump 2 after the consumables with the first starting weight are fixed.

[0089] For example, with reference to Figure 1 The physiological saline scale 53 has a second starting weight which is the same as the initial weight of a unit of physiological saline, and the physiological saline scale 53 allows the control module 13 to start the blood collection pump 2 after the consumables with the second starting weight are fixed, and the first starting weight is different from the second starting weight.

[0090] In this embodiment, on the other hand, an example embodiment of the present disclosure also discloses a blood plasma collection method, comprising the following steps:

[0091] S100, confirming the identity and biological information of the user, and selecting a blood donation mode from a preset database;

[0092] S200, detecting and monitoring the physiological indicators of the user in real time, and matching the blood donation suggestion from the preset database according to the current physical state of the user;

[0093] S300, after the blood collection starts, the blood pump rotates to transport the blood in the pipeline to the centrifugal module, the anticoagulant pump transports the anticoagulant to the centrifugal module, and the blood is transported to the inside of the plasma container after centrifugation; the running number of the blood pump and the anticoagulant pump and the weight change of the remaining anticoagulant are monitored in real time, and the whole blood volume and the anticoagulant amount in the centrifugal module are calculated; the weight of the plasma container is obtained in real time, and when the calculated result and the obtained weight of the plasma container differ by more than a threshold value, the blood collection is stopped;

[0094] S400, after the blood collection starts, the pressure in the pipeline is monitored in real time;

[0095] When the pipeline pressure exceeds the threshold value, the speed of the blood pump is continuously reduced until the pressure returns to normal;

[0096] When the pipeline pressure is less than the threshold value, the speed of the blood pump is continuously increased until the pressure returns to normal;

[0097] When the pipeline pressure is in the expected range, the blood pump operates at the maximum speed;

[0098] After the blood collection starts, when the physiological indicators of the user are abnormal, the speed of the blood pump and the anticoagulant pump is adjusted; when the physiological indicators of the user are still not expected, the blood collection is stopped or the blood is started to be returned;

[0099] After the blood collection starts, the pipeline at the outlet of the centrifugal module is monitored in real time, and when red blood cells are detected to overflow, the blood collection is stopped;

[0100] S500, after detecting the plasma of the predetermined weight of the plasma container, stopping the blood collection, flushing the centrifugal module with physiological saline, and returning the remaining blood in the pipeline and the centrifugal module to the blood pump.

[0101] For example, referring to Figure 1 , step S100 specifically includes: reading the identity card of the user through an identity verification module, such as a sensor with nfc function, and obtaining the identity information and historical physiological health information of the user, such as historical medical conditions, from the database, which can be displayed on a touchable input display screen for the operator to confirm, and selecting an appropriate blood donation strategy in the built-in database of the control module for the operator to confirm.

[0102] Step S200 specifically comprises: setting a vital sign sensing device on the user, for example, acquiring the heartbeat, blood pressure, respiratory rate and other information of the current blood sampling user, the vital sign sensing device is in communication connection with the control module, for example, wireless signal connection, or cable communication. The vital sign sensing device transmits the vital sign information of the user to the control module in real time, the control module determines the current blood sampling strategy of the user through the pre-built blood sampling scheme, and then adjusts the rotating speed of the blood sampling pump and the anticoagulant pump in real time. The pressure sensor can feedback the pipeline pressure to the control module, that is, the pressure sensor can also monitor and feedback the real-time physiological indicators of the user, and the control module can regulate and control the blood sampling pump according to the pipeline pressure feedback by the pressure sensor and the signal feedback by the vital sign sensing device.

[0103] Step S300 specifically comprises: one end of the blood sampling needle connected with the user on the pipeline, the blood in the user's body enters the inside of the pipeline, and under the action of the running blood sampling pump, it is transported to the centrifugal module, at the same time, the anticoagulant is transported to the inside of the centrifugal module under the action of the anticoagulant pump, and mixed with the blood in the pipeline inside the centrifugal module, the mixed whole blood is separated into plasma after centrifugation by the centrifugal module, and the plasma flows into the inside of the plasma container along the pipeline.

[0104] Step S400 specifically comprises: after blood sampling starts, the pressure of the pipeline is monitored in real time, the pipeline pressure is represented by the height of mercury column, and the initial speed of the blood sampling pump is set as V (rpm):

[0105] When the pipeline pressure is less than -80mmHg, stop blood sampling;

[0106] When the pipeline pressure is between -79mmHg and -51mmHg, control the blood sampling pump to increase the running speed, and the speed of the blood sampling pump increases V / (-51-(-79)) every time the pipeline pressure increases 1mmHg;

[0107] When the pipeline pressure is between -50mmHg and 50mmHg, the blood sampling pump runs at the initial speed V;

[0108] When the pipeline pressure is between 51mmHg and 79mmHg, control the blood sampling pump to reduce the rotating speed, and the speed of the blood sampling pump decreases V / (79-51) every time the pipeline pressure increases 1mmHg;

[0109] When the pipeline pressure is less than or equal to 80mmHg, stop blood sampling.

[0110] The step S500 specifically comprises that the plasma container is fixed on a plasma scale clamp with a weighing function, the weight of the plasma in the plasma container can be acquired in real time by setting a skinning of the plasma scale clamp or presetting the weight of the empty plasma container in the control module, when the weight signal fed back by the plasma scale clamp to the control module reaches a preset threshold, the control module can decide to stop the blood collection action, that is, control the blood collection pump and the anticoagulant pump to stop, and at the same time, the control module can send an opening instruction to the valve body which decides whether the physiological saline enters the inside of the centrifugal module, so that the physiological saline fixed at a position higher than the centrifugal module enters the inside of the centrifugal module, that is, the inside of the centrifugal module is flushed, and the physiological saline can also be returned to the user together with the whole blood separated from the plasma, and the user is supplemented with liquid.

[0111] In the embodiment, in the step S400, when the blood collection pump is reversed for return, the pressure of the pipeline is monitored in real time, the pressure of the pipeline is represented by the height of mercury column, and the initial speed of the blood collection pump is set as v (rpm) :

[0112] When the pipeline pressure is greater than or equal to 260 mmHg, the return is stopped;

[0113] When 101 mmHg < pipeline pressure < 259 mmHg, the speed of the blood collection pump is reduced, and the speed of the blood collection pump is reduced by V / (259-101) every time when the pipeline pressure increases by 1 mmHg;

[0114] When 0 mmHg < pipeline pressure < 100 mmHg, the blood collection pump is operated at the maximum speed;

[0115] When the pipeline pressure is less than 0 mmHg, the return is stopped.

[0116] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary scale that can be adjusted in height in silence, characterized in that, The utility model relates to a kind of anti-coagulation scale, including: Anti-coagulation scale (54) is used for weighing the weight of object; Scale shell (59) is wrapped outside the anti-coagulation scale (54), and is used to provide installation base; Damping support rod (512) is hinged with scale shell (59), and is vertically arranged for supporting the scale shell (59) to the expected height, the damping support rod (512) has the wave-shaped bending damping metal ring (544) at the hinged position of the scale shell (59), the damping metal ring (544) is annular structure, the top wall and bottom wall of the damping metal ring (544) are respectively abutted with the scale shell (59) and the damping support rod (512), the damping metal ring (544) is always extruded by the scale shell (59); Hook (542) is used for hanging object, and the hook (542) is fixedly connected with the anti-coagulation scale (54) and extends from the bottom wall of the scale shell (59).

2. The silent height-adjustable rotary scale according to claim 1, wherein, The top end of the damping support rod (512) is coaxially fixed with the bottom plate (545) for bearing the damping metal ring (544), and the scale shell (59) is internally bolted with the pressing plate (543) fixed with the damping support rod (512), and the pressing plate (543) presses the scale shell (59) on the damping metal ring (544).

3. The silent height-adjustable rotary scale of claim 1, wherein, The scale shell (59) is fixed with a protection device for limiting the maximum deformation position of the anti-coagulation scale (54), and when the anti-coagulation scale (54) weighs the object exceeding the maximum weighable weight, the bottom surface of the deformed anti-coagulation scale (54) abuts against the protection device.

4. The height adjustable, silent tilting swivel of claim 3, wherein, The protection device includes a protection pin (547) threaded on the scale shell (59), and the threaded tail end of the protection pin (547) extends into the scale shell (59) and extends to the bottom of the anti-coagulation scale (54).

5. The silent height-adjustable rotary scale of claim 4, wherein, The scale shell (59) has a protection cap (548) threaded with the protection pin (547) inside, the protection cap (548) abuts against the inner bottom wall of the scale shell (59), and the threaded tail end of the protection pin (547) extends from the top end of the protection cap (548).

6. The silent height-adjustable swivel mount of claim 4, wherein, The scale shell (59) is fixedly connected with a downward-pressing trigger alarm (546) for alarming when the anti-coagulation scale (54) deforms after weighing the object exceeding the maximum weighable weight.

7. The silent height-adjustable rotary scale of claim 6, wherein, The downward-pressing trigger alarm (546) is located between the hook (542) and the protection pin (547).

Images