Portable ion chromatograph integrated device

By combining the design of the mechanism box, support mechanism and shock absorption mechanism, the stability and shock absorption problems of portable ion chromatograph during operation are solved, realizing stable placement of the equipment and vibration sensing, avoiding equipment damage and impact on experimental results.

CN223736583UActive Publication Date: 2025-12-30BEIJING JINGKE RUIDA TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520085958.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-20
Publication Date
2025-12-30
Estimated Expiration
2035-11-20

AI Technical Summary

Technical Problem

Existing portable ion chromatographs are easily damaged during operation due to elbow contact or unstable placement, especially when used on the edge of a table.

Method used

The design employs a combination of mechanism box, support mechanism, shock absorption mechanism and adjustment mechanism, and achieves stable fixation and shock absorption of the equipment through the cooperation of gears and springs.

Benefits of technology

Ensure the equipment is placed stably during use to avoid accidental movement, and allow it to be disengaged from the shock absorption function when needed to detect vibrations, thus protecting experimental results and equipment safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223736583U_ABST
    Figure CN223736583U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable ion chromatograph integrated device, which relates to the technical field of ion chromatographs, and comprises a mechanism box, the inner side of the bottom wall of the mechanism box is movably sleeved with a storage box, the bottom of the inner side of the mechanism box is movably provided with a damping mechanism, the inner side of the mechanism box is movably sleeved with a chromatograph body, and the storage box is movably provided with a clamping mechanism. The lower side of the mechanism box is fixedly connected with a supporting mechanism, and the positions, close to the four corners, of the upper side of the damping mechanism are connected with four adjusting mechanisms distributed in a rectangular mode. According to the portable ion chromatograph integrated device disclosed by the utility model, the second gear is rotated to drive the piston to move up and down, and when the piston moves upwards, the air pressure in the supporting seat is reduced, so that the supporting seat is adsorbed on a plane on which the device is placed, and the mechanism box is fixed, so that the device is more stable when being used; and accidental movement of the equipment due to external force influence is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ion chromatography technology, and in particular to a portable integrated ion chromatography device. Background Technology

[0002] Ion chromatography is a type of high-performance liquid chromatography, hence it is also called high-performance ion chromatography or modern ion chromatography. It differs from traditional ion exchange column chromatography mainly in that the resin has a high degree of cross-linking and a low exchange capacity, the injection volume is very small, and the eluent is delivered by a plunger pump. The eluent is usually subjected to online automatic continuous conductivity detection.

[0003] Chinese patent document CN216082632U discloses a portable ion chromatograph including a device body. The device body includes a protective housing, and four equally spaced support legs are fixed to the bottom of the protective housing. Each of the four support legs has a fixing block on its lower side, and each of the four fixing blocks has a fixing plate inside. This portable ion chromatograph achieves the effect of storing related instruments through an instrument placement container, a container handle, a container slider, a housing groove, and a housing slide. It achieves the effect of shock absorption and vibration reduction for the chromatograph through the fixing blocks, fixing block openings, fixing block damping springs, housing support legs, fixing plates, a chromatograph placement plate, a placement plate sponge pad, and a chromatograph damping spring. It achieves the effect of limiting and fixing the chromatograph through a housing cover, a housing cover pressure plate, a housing cover return spring, and a pressure plate sponge.

[0004] The existing technology has the following problems:

[0005] The device is placed directly on a flat surface using a fixed block. However, when operating the device, it is necessary to pick up or put down containers such as beakers. This may cause the user to bump the device with their elbow while performing other preparatory operations, causing the device to be pushed. If the device is located at the edge of the table, it may be damaged. Utility Model Content

[0006] This invention provides a portable ion chromatograph integrated device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A portable ion chromatograph integrated device includes a mechanism box, a storage box movably sleeved on the inner side of the bottom wall of the mechanism box, a shock-absorbing mechanism movably installed on the bottom inner side of the mechanism box, a chromatograph body movably sleeved on the inner side of the mechanism box, a support mechanism fixedly connected to the lower side of the mechanism box, and four rectangularly distributed adjustment mechanisms installed and connected near the four corners on the upper side of the shock-absorbing mechanism.

[0009] The support mechanism includes support seats. The upper side of each support seat is fixedly connected to the lower side of the mechanism box near the four corners. Four support seats are rectangularly distributed. Rubber pads are fixedly connected to the lower side of each of the four support seats. Pistons are movably sleeved on the inner side of each of the four support seats. A first gear is rotatably connected to the upper side of each of the four support seats. A guide post is fixedly connected to the upper axis of each of the four pistons. Several annularly distributed spiral grooves are opened on the outer side of each of the four guide posts. The inner side of the first gear is slidably connected to the inner side of the spiral groove.

[0010] Preferably, each of the four pistons has a number of annularly distributed limiting rods fixedly connected to the upper side near the edge, and the outer side of the limiting rods is movably sleeved on the inner side of the upper wall of the support seat.

[0011] Preferably, a second gear is rotatably connected to the middle of the lower inner surface of the bottom wall of the mechanism box, and four rectangularly distributed third gears are rotatably connected to the lower inner surface of the bottom wall of the mechanism box near the four corners. The side of the first gear closest to the piston is meshed with the side of the third gear furthest from each other, and the side of the third gear furthest from the first gear is meshed with the outer side of the second gear.

[0012] Preferably, a rotating rod is fixedly connected to the lower shaft of the second gear, a movable rod is movably sleeved on the inner side of the rotating rod, a first spring is movably sleeved on the inner side of the rotating rod, and the first spring is located on the front side of the movable rod. Two symmetrically distributed inserts are fixedly connected to the lower side of the mechanism box near the rear side, and the outer side of the movable rod is movably sleeved on the inner side of the inserts.

[0013] Preferably, the adjusting mechanism includes a torsion bar, the lower side of which is rotatably connected to the upper side of the shock-absorbing mechanism near the four corners, and the outer side of the torsion bar near the bottom is fixedly connected to two annularly distributed first locking blocks.

[0014] Preferably, a fixing sleeve is fixedly connected to the inner side of the chromatograph body near the four corners; a first push rod is movably sleeved on the inner side of the torsion bar; a second push rod is movably sleeved on the inner side of the fixing sleeve; a second spring is movably sleeved on the inner side of both the torsion bar and the fixing sleeve, and the second spring is located below the first and second push rods; two second locking blocks are fixedly connected to the outer side of the first and second push rods near the upper side; and two locking plates are fixedly connected to the upper side of the inner front and rear sides of the mechanism box near the four corners, with the second locking blocks located below the locking plates.

[0015] Preferably, a rotating seat is rotatably connected to the lower inner surface of the fixed sleeve, a transmission rod is fixedly connected to the lower axial center of the second push rod, the outer side of the transmission rod is movably sleeved on the inner side of the rotating seat, and torsion springs are provided at the positions between the bottom of the rotating seat and the lower wall of the fixed sleeve, as well as at the positions near the four corners of the lower side of the torsion rod and the upper side of the shock absorption mechanism.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a portable integrated ion chromatograph device, which adopts the cooperation of a mechanism box, a support mechanism, a support base, a rubber pad, a piston, a first gear, a guide column, a spiral groove, a limiting rod, a second gear, a third gear, a rotating rod, a movable rod, a first spring, and a socket. By rotating the second gear, the second gear drives the piston to move up and down. When the piston moves up, the air pressure in the support base decreases, causing the support base to adhere to the plane on which the device is placed, thus fixing the mechanism box. This makes the device more stable during use and prevents the device from being accidentally moved by external forces.

[0018] 2. This utility model provides a portable integrated ion chromatograph device, which employs a mechanism box, a shock-absorbing mechanism, a chromatograph body, an adjustment mechanism, a torsion bar, a first locking block, a fixing sleeve, a first push rod, a second push rod, a second locking block, a second spring, a rotating seat, a transmission rod, and a locking plate. By rotating the torsion bar and the second push rod, the chromatograph body is pulled upward, causing the chromatograph body and the shock-absorbing mechanism to separate and be fixed to the mechanism box. This prevents the shock-absorbing mechanism from damping the chromatograph body, allowing the chromatograph body to vibrate during operation. Simultaneously, the supporting mechanism prevents this vibration from causing the device to move. Under normal circumstances, the vibration of the chromatograph body will not affect the experimental results. However, damage to internal components, such as sample residue in the syringe, capillary aging, or pump head failure, can cause significant vibration. This invention avoids situations where the shock-absorbing mechanism cannot effectively dampen the chromatograph body, thus preventing the vibration from being imperceptible and affecting experimental results or even damaging the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the shock absorption mechanism of this utility model;

[0022] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the support base portion of this utility model;

[0023] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the torsion bar portion of this utility model;

[0024] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the fixing sleeve part of this utility model.

[0025] In the diagram: 1. Mechanism box; 2. Storage box; 3. Shock absorption mechanism; 4. Chromatograph body; 5. Support mechanism; 51. Support base; 52. Rubber pad; 53. Piston; 54. First gear; 55. Guide column; 56. Spiral groove; 57. Limiting rod; 58. Second gear; 59. Third gear; 510. Rotating rod; 511. Movable rod; 512. First spring; 513. Insert sleeve; 6. Adjustment mechanism; 61. Torsion bar; 62. First locking block; 63. Fixing sleeve; 64. First push rod; 65. Second push rod; 66. Second locking block; 67. Second spring; 68. Rotating seat; 69. Transmission rod; 610. Locking plate. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-6 As shown, a portable ion chromatograph integrated device includes a mechanism box 1, a storage box 2 movably sleeved on the inner side of the bottom wall of the mechanism box 1, a shock-absorbing mechanism 3 movably installed on the bottom inner side of the mechanism box 1, a chromatograph body 4 movably sleeved on the inner side of the mechanism box 1, a support mechanism 5 fixedly connected to the lower side of the mechanism box 1, and four rectangular adjustment mechanisms 6 installed and connected near the four corners on the upper side of the shock-absorbing mechanism 3.

[0028] The support mechanism 5 includes a support base 51. The upper side of the support base 51 is fixedly connected to the lower side of the mechanism box 1 near the four corners. There are four rectangular support bases 51. Rubber pads 52 are fixedly connected to the lower side of each of the four support bases 51. Pistons 53 are movably sleeved on the inner side of each of the four support bases 51. A first gear 54 is rotatably connected to the upper side of each of the four support bases 51. A guide post 55 is fixedly connected to the upper axis of each of the four pistons 53. Several annularly distributed spiral grooves 56 are opened on the outer side of each of the four guide posts 55. The inner side of the first gear 54 is slidably connected to the inner side of the spiral groove 56.

[0029] It should be noted that the shock absorption mechanism 3 is used to buffer the vibration received by the chromatograph body 4, so as to avoid the external vibration affecting the equipment when the equipment is moved. Rotating the first gear 54 causes the internal retaining strip of the first gear 54 to slide inside the spiral groove 56, so that the guide column 55 drives the piston 53 to move up and down. When the piston 53 moves up, the air pressure inside the support seat 51 decreases, so that the mechanism box 1 is fixed.

[0030] like Figure 4 As shown, several annularly distributed limiting rods 57 are fixedly connected to the upper side of the four pistons 53 near the edge, and the outer side of the limiting rods 57 is movably sleeved on the inner side of the upper wall of the support seat 51.

[0031] It should be noted that the limiting rod 57 is used to stabilize the piston 53, so that the piston 53 can only move up and down and cannot rotate, thus preventing the guide column 55 from rotating with the first gear 54.

[0032] like Figure 3 As shown, a second gear 58 is rotatably connected to the middle of the lower inner surface of the bottom wall of the mechanism box 1. Four rectangularly distributed third gears 59 are rotatably connected to the lower inner surface of the bottom wall of the mechanism box 1 near the four corners. The side of the first gear 54 near the piston 53 meshes with the side of the third gear 59 that is away from each other. The side of the third gear 59 away from the first gear 54 meshes with the outer side of the second gear 58.

[0033] It should be noted that when the second gear 58 rotates, it drives the third gear 59 to rotate, and when the third gear 59 rotates, it drives the first gear 54 to rotate, so that rotating only the second gear 58 causes all the first gears 54 to rotate synchronously.

[0034] like Figure 3 As shown, a rotating rod 510 is fixedly connected to the lower shaft of the second gear 58. A movable rod 511 is movably sleeved on the inner side of the rotating rod 510. A first spring 512 is movably sleeved on the inner side of the rotating rod 510, and the first spring 512 is located in front of the movable rod 511. Two symmetrically distributed inserts 513 are fixedly connected to the lower side of the mechanism box 1 near the rear side. The outer side of the movable rod 511 is movably sleeved on the inner side of the insert 513.

[0035] It should be noted that when the movable rod 511 is movably sleeved inside the insert 513, the movable rod 511 is fixed, but the second gear 58 cannot rotate. Pushing the movable rod 511 forward causes it to disengage from the insert 513, thereby allowing the second gear 58 to rotate.

[0036] like Figure 2 , Figure 5As shown, the adjustment mechanism 6 includes a torsion bar 61. The lower side of the torsion bar 61 is rotatably connected to the upper side of the shock absorption mechanism 3 near the four corners. The outer side of the torsion bar 61 near the bottom is fixedly connected to two annularly distributed first locking blocks 62.

[0037] It should be noted that the first locking block 62 is used to fix the chromatograph body 4. The outer side of the torsion bar 61 is movably sleeved on the inner side of the chromatograph body 4 near the four corners. In the initial state, the first locking block 62 fixes the chromatograph body 4, so that the chromatograph body 4 is mounted on the shock absorption mechanism 3, which allows the shock absorption mechanism 3 to reduce vibration of the chromatograph body 4. Rotating the torsion bar 61 causes the first locking block 62 to rotate 90 degrees, so that the first locking block 62 no longer fixes the chromatograph body 4, allowing the chromatograph body 4 to move upward.

[0038] like Figure 5 , Figure 6 As shown, a fixing sleeve 63 is fixedly connected to the inner side of the chromatograph body 4 near the four corners. A first push rod 64 is movably sleeved on the inner side of the torsion bar 61. A second push rod 65 is movably sleeved on the inner side of the fixing sleeve 63. A second spring 67 is movably sleeved on the inner side of both the torsion bar 61 and the fixing sleeve 63. The second spring 67 is located below the first push rod 64 and the second push rod 65. Two second locking blocks 66 are fixedly connected to the outer side of the first push rod 64 and the second push rod 65 near the upper side. Two locking plates 610 are fixedly connected to the upper side of the inner front and rear sides of the mechanism box 1 near the four corners. The second locking blocks 66 are located below the locking plates 610.

[0039] It should be noted that when the first push rod 64 and the second push rod 65 are rotated, the first push rod 64 can drive the torsion bar 61 to rotate. When the first push rod 64 and the second push rod 65 rotate 90 degrees, the second spring 67 pushes the first push rod 64 and the second push rod 65 up and down, causing the second locking block 66 to be movably engaged into the inner side of the locking plate 610, which facilitates checking the rotation angle of the first push rod 64 and the second push rod 65.

[0040] like Figure 6 As shown, a rotating seat 68 is rotatably connected to the lower inner surface of the fixed sleeve 63, and a transmission rod 69 is fixedly connected to the lower axial center of the second push rod 65. The outer side of the transmission rod 69 is movably sleeved on the inner side of the rotating seat 68. Torsion springs are provided at the bottom of the rotating seat 68 and the lower wall of the fixed sleeve 63, as well as at the lower side of the torsion bar 61 and the upper side of the shock absorption mechanism 3 near the four corners.

[0041] It should be noted that the torsion spring is used to stabilize the torsion bar 61 and the rotating seat 68, so that the torsion bar 61 and the rotating seat 68 will not rotate on their own without human intervention. When the second locking block 66 is movably engaged into the inner side of the locking plate 610, the torsion spring will not drive the torsion bar 61 and the rotating seat 68 to reset, pushing the chromatograph body 4 upward, causing the chromatograph body 4 to drive the second push rod 65 to move upward. When the second locking block 66 on the second push rod 65 moves to the upper side of the locking plate 610, the rotating seat 68 drives the second push rod 65 to reset, so that the chromatograph body 4 is fixed on the mechanism box 1.

[0042] The working principle of this utility model is as follows: First, rotating the first gear 54 causes the inner retaining strip of the first gear 54 to slide inside the spiral groove 56, causing the guide column 55 to drive the piston 53 to move up and down. When the piston 53 moves upward, the air pressure inside the support seat 51 decreases, thus fixing the mechanism box 1. When the second gear 58 rotates, it drives the third gear 59 to rotate. When the third gear 59 rotates, it drives the first gear 54 to rotate, so that rotating only the second gear 58 causes all the first gears 54 to rotate synchronously. By rotating the second gear 58, it drives the piston 53 to move up and down. When the piston 53 moves upward, the air pressure inside the support seat 51 decreases, causing the support seat 51 to adhere to the plane on which the device is placed, thus fixing the mechanism box 1. This makes the equipment more stable during use, preventing accidental movement due to external forces. Finally, the first locking block 62 is used to fix the chromatograph body 4. The outer side of the torsion bar 61 is movably sleeved on the inner side of the chromatograph body 4 near the four corners. In the initial state, the first locking block 62 fixes the chromatograph body 4, allowing it to be mounted on the shock-absorbing mechanism 3, thus enabling the shock-absorbing mechanism 3 to dampen vibrations in the chromatograph body 4. Rotating the torsion bar 61 causes the first locking block 62 to rotate 90 degrees, thus removing the first locking block 62 from fixing the chromatograph body 4, allowing the chromatograph body 4 to move upwards. Rotating the first push rod 64 and the second push rod 65 causes the first push rod 64 to rotate, which in turn drives the torsion bar 61 to rotate. 5. After rotating 90 degrees, the second spring 67 pushes the first push rod 64 and the second push rod 65 up and down, causing the second locking block 66 to be movably engaged with the inner side of the clamping plate 610, facilitating the inspection of the rotation angle of the first push rod 64 and the second push rod 65. The torsion spring is used to stabilize the torsion rod 61 and the rotating seat 68, so that the torsion rod 61 and the rotating seat 68 will not rotate on their own without human intervention. When the second locking block 66 is movably engaged with the inner side of the clamping plate 610, the torsion spring will not drive the torsion rod 61 and the rotating seat 68 to reset, pushing the chromatograph body 4 upward, causing the chromatograph body 4 to move the second push rod 65 upward. When the second locking block 66 on the second push rod 65 moves to the upper side of the clamping plate 610, the rotating seat 68 drives the second push rod 65 to reset, thus fixing the chromatograph body 4. On the mechanism box 1, by rotating the torsion bar 61 and the second push rod 65, the chromatograph body 4 is pulled up, causing the chromatograph body 4 and the shock-absorbing mechanism 3 to separate and be fixed between them and the mechanism box 1. This prevents the shock-absorbing mechanism 3 from providing shock absorption for the chromatograph body 4, thus allowing the chromatograph body 4 to feel its vibration during operation. At the same time, the supporting mechanism 5 prevents this vibration from causing the device to move. Under normal circumstances, the vibration of the chromatograph body 4 will not affect the experimental results. However, when internal components are damaged, such as sample residue in the syringe, capillary aging, or pump head failure, these conditions can cause significant equipment vibration. To prevent the shock-absorbing mechanism 3 from providing shock absorption for the chromatograph body 4, which would otherwise make the vibration difficult to detect, these conditions could affect the experimental results or even damage the equipment.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable ion chromatograph integrated device comprising a mechanism box (1), characterized in that: The bottom wall of the mechanism box (1) is movably sleeved with a receiving box (2), the inner bottom of the mechanism box (1) is movably provided with a damping mechanism (3), the inner side of the mechanism box (1) is movably sleeved with a chromatograph body (4), the lower side of the mechanism box (1) is fixedly connected with a supporting mechanism (5), and the upper side of the damping mechanism (3) is movably connected with four adjusting mechanisms (6) distributed in a rectangular shape. The supporting mechanism (5) comprises a supporting seat (51), the upper side of the supporting seat (51) is fixedly connected to the lower side of the mechanism box (1) near the four corners, and the supporting seat (51) is distributed in a rectangular shape and comprises four supporting seats (51), the lower side of each of the four supporting seats (51) is fixedly connected with a rubber pad (52), the inner side of each of the four supporting seats (51) is movably sleeved with a piston (53), the upper side of each of the four supporting seats (51) is rotatably connected with a first gear (54), the upper side of each of the four pistons (53) is fixedly connected with a guide column (55), the outer side of each of the four guide columns (55) is provided with a plurality of annularly distributed spiral sliding grooves (56), and the inner side of the first gear (54) is slidably connected to the inner side of the spiral sliding groove (56).

2. The portable ion chromatography integrated device according to claim 1, wherein: The upper side of each of the four pistons (53) is fixedly connected with a plurality of annularly distributed limiting rods (57) near the edge, and the outer side of the limiting rod (57) is movably sleeved to the inner side of the upper wall of the supporting seat (51).

3. The portable ion chromatography integrated device of claim 1, wherein: The inner lower surface of the bottom wall of the mechanism box (1) is rotatably connected with a second gear (58), the inner lower surface of the bottom wall of the mechanism box (1) is rotatably connected with four third gears (59) distributed in a rectangular shape near the four corners, the side of the first gear (54) away from the piston (53) is meshedly connected to the side of the third gear (59) away from each other, and the side of the third gear (59) away from the first gear (54) is meshedly connected to the outer side of the second gear (58).

4. The portable ion chromatography integrated device according to claim 3, wherein: The lower side of the second gear (58) is fixedly connected with a rotating rod (510) at the shaft center, the inner side of the rotating rod (510) is movably sleeved with a movable rod (511), the inner side of the rotating rod (510) is movably sleeved with a first spring (512), and the first spring (512) is located on the front side of the movable rod (511), the lower side of the mechanism box (1) is fixedly connected with two plug sleeves (513) distributed in a left-right symmetrical manner near the rear side, and the outer side of the movable rod (511) is movably sleeved to the inner side of the plug sleeve (513).

5. The portable ion chromatography integrated device of claim 1, wherein: The adjusting mechanism (6) comprises a torsion rod (61), the lower side of the torsion rod (61) is rotatably connected to the upper side of the damping mechanism (3) near the four corners, and the outer side of the torsion rod (61) is fixedly connected with two first clamping blocks (62) distributed in an annular shape near the bottom.

6. The portable ion chromatography integrated device of claim 5, wherein: The inner side of the chromatograph body (4) is fixedly connected with a fixed sleeve (63) near the four corners, the inner side of the torsion bar (61) movably sleeves a first push rod (64), the inner side of the fixed sleeve (63) movably sleeves a second push rod (65), the inner sides of the torsion bar (61) and the fixed sleeve (63) movably sleeve a second spring (67), and the second spring (67) is located below the first push rod (64) and the second push rod (65), the outer sides of the first push rod (64) and the second push rod (65) are fixedly connected with two second clamping blocks (66) near the upper side, the inner sides of the mechanism box (1) are fixedly connected with two clamping plates (610) near the upper side of the four corners, and the second clamping blocks (66) are located below the clamping plates (610).

7. The portable ion chromatography integrated device of claim 6, wherein: The inner side of the fixed sleeve (63) is rotatably connected with a rotating seat (68) at the lower surface shaft center, the lower side of the second push rod (65) is fixedly connected with a transmission rod (69), the outer side of the transmission rod (69) movably sleeves the inner side of the rotating seat (68), and the positions between the bottom of the rotating seat (68) and the lower wall of the fixed sleeve (63) and the positions near the four corners between the lower side of the torsion bar (61) and the upper side of the damping mechanism (3) are all provided with torsion springs.

Citation Information

Patent Citations

  • Portable ion chromatograph

    CN216082632U