Auxiliary instrument for measuring liquid density

Abstract

The utility model discloses an auxiliary instrument for measuring liquid density, which relates to the technical field of metering and comprises a bottom plate, a mounting column is fixedly mounted at the upper end of the bottom plate, a clamping mechanism is fixedly mounted at the upper end of the front surface of the mounting column, and the mounting column clamps a liquid density meter through the clamping mechanism. And a suction pipe is movably mounted at the lower end of the liquid densimeter. By the adoption of the structure, when the liquid densimeter is fixed, a user only needs to insert the handheld handle at the lower end of the liquid densimeter into the through hole of the fixing rod, then the rotating block is used for rotating the third screw to stretch out and draw back on the fixing rod in a threaded mode, and the third screw rotates to push the clamping block to slide; the clamping block is matched with the clamping groove in the opposite side of the through hole to clamp and fix the handheld handle of the liquid densimeter, so that a user does not need to lift the liquid densimeter for a long time in the detection process.

Description

Technical Field

[0001] The utility model belongs to the technical field of measurement, and particularly relates to an auxiliary instrument for measuring liquid density. Background Art

[0002] Liquid densitometer is a measuring instrument used to measure liquid density, which is widely used in petroleum, chemical, pharmaceutical and food industries. At present, when measuring liquid density with a handheld electronic liquid densitometer, the user mainly needs to hold the liquid densitometer and insert the straw at the lower end of the densitometer into the beaker containing the liquid to be tested until the densitometer sucks enough test liquid into the instrument through the straw, and then the liquid densitometer measures and calculates the density of the sucked liquid.

[0003] The Chinese patent with publication number CN216900065U discloses a liquid density meter, which has the advantages of fast measurement and convenient carrying. The liquid density meter includes: a base, a straw, a sensor module, a liquid suction module and a data output module; wherein the sensor module, the straw and the liquid suction module are connected through a fluid pipeline in the base; the straw is inserted into the liquid to be measured, and the liquid suction module uses the vacuum suction principle to suck the liquid to be measured into the sensor module through the straw; the sensor module is used to measure the internal liquid density through the U-shaped oscillating tube method.

[0004] The liquid density meter in the above-mentioned prior art still has some shortcomings in actual use. For example, when the liquid density meter measures the density of the liquid, the user is required to insert the suction end of the straw into the liquid in the beaker, and at the same time, the user must hold the liquid density meter with his hand all the time. After the test is completed, the liquid density meter needs to be cleaned. During this process, the long-term operation and holding of the liquid density meter will cause discomfort to the user. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an auxiliary instrument for liquid density measurement to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An auxiliary instrument for measuring liquid density, comprising a bottom plate, a mounting column fixedly mounted on the upper end of the bottom plate, a clamping mechanism fixedly mounted on the upper end of the front side of the mounting column, a liquid density meter clamped by the mounting column through the clamping mechanism, a suction tube movably mounted on the lower end of the liquid density meter, a retaining ring fixedly connected to the outer side of the suction tube, a sinking tube mechanism provided on the front side of the mounting column, an end of the suction tube away from the liquid density meter clamped on the inner side of the sinking tube mechanism, a cleaning mechanism fixedly mounted on the upper end of the bottom plate, a detection beaker plugged into the upper end of the cleaning mechanism, and a control module fixedly mounted on the front side of the bottom plate;

[0008] The clamping mechanism comprises a fixing rod, which is fixedly mounted on the front side of the mounting column, a through hole is provided on the inner side of the fixing rod, a clamping block is slidably connected to the inner side of the through hole, a third screw is threadedly connected to the front side of the fixing rod, a rotating block is fixedly connected to one end of the third screw, an end of the third screw away from the rotating block is threadedly extended into the inner side of the through hole and is rotatably connected to the clamping block, a clamping groove is provided on the opposite side of the clamping block and the through hole, the liquid density meter is clamped on the opposite side of the clamping groove, and the liquid density meter can be conveniently clamped and fixed on the mounting column through the clamping mechanism;

[0009] The pipe sinking mechanism comprises a first mounting groove and a second mounting groove, both of which are provided on the front side of the mounting column, a first driving motor is fixedly mounted on the inner side of the first mounting groove, a first screw is rotatably connected to the inner side of the second mounting groove, an upper end of the first screw is rotatably extended into the inner side of the first mounting groove and fixedly mounted on the output end of the first driving motor, a support arm is threadedly connected to the outer side of the first screw, a rear end of the support arm is slidably connected to the inner side of the second mounting groove, a rubber tube clamp is fixedly connected to the front end of the support arm, an end of the straw away from the liquid density meter is clamped on the inner side of the rubber tube clamp, and the suction end of the straw can be conveniently inserted into the liquid in the detection beaker through the pipe sinking mechanism;

[0010] The cleaning mechanism includes a bracket, which is fixedly installed on the upper end of the base plate, a second drive motor is fixedly installed on the outer side of the bracket, a second screw is rotatably connected to the inner side of the bracket, the right end of the second screw rotates through the bracket wall and is fixedly installed on the output end of the second drive motor, the outer side of the second screw is threadedly connected to a moving platform, the moving platform is slidably connected to the upper end of the bracket, a cleaning beaker is inserted into the upper right half of the moving platform, and the detection beaker is inserted into the upper left half of the moving platform. Through the cleaning mechanism, the pipette and the detection part inside the liquid density meter can be conveniently cleaned after the detection is completed.

[0011] As a preferred technical solution, a sliding groove is symmetrically opened on the inner side of the through hole, and the end of the clamping block is slidably connected to the inner side of the through hole through the sliding groove. A third screw sleeve is fixedly installed on the inner side of the front face of the fixing rod, and the end of the third screw rod away from the rotating block is threaded through the third screw sleeve. The sliding groove can facilitate the sliding of the clamping block at the through hole.

[0012] As an optimal technical solution, the lower end of the mounting column is fixedly connected to a fixing plate, a fixing hole is opened on the inner side of the fixing plate, and the fixing plate is fixedly installed by screws passing through the fixing hole and the upper end of the base plate. The fixing plate can be used to facilitate the installation of the mounting column on the base plate.

[0013] As a preferred technical solution, a first screw sleeve is fixedly installed on the inner side of the support arm, and the support arm is threadedly connected to the outer side of the first screw rod through the first screw sleeve. A first sliding rod is symmetrically fixedly installed on the inner side of the second mounting groove, and one end of the support arm away from the rubber tube rack is slidably connected to the outer side of the first sliding rod. The support arm can be conveniently threadedly connected to the outer side of the first screw rod through the first screw sleeve.

[0014] As an optimal technical solution, a second sliding rod is fixedly installed on the inner side of the bracket, and the moving platform is slidably connected to the outer side of the second sliding rod. A second screw sleeve is fixedly installed on the inner side of the moving platform, and the moving platform is threadedly connected to the outer side of the second screw rod through the second screw sleeve. The second sliding rod can facilitate the sliding of the moving platform on the bracket.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, when fixing the liquid density meter, it is only necessary to insert the hand-held handle at the lower end of the liquid density meter into the through hole of the fixing rod, and then use the rotary block to rotate the third screw rod to extend and retract the thread on the fixing rod, so that the third screw rod rotates to push the clamping block to slide, and the clamping block can clamp and fix the hand-held handle of the liquid density meter by cooperating with the clamping groove on the opposite side of the through hole, so that the user does not need to lift the liquid density meter for a long time during the detection process;

[0017] Second, when the detection beaker is at the lower end of the straw, it is only necessary to use the first drive motor to drive the first screw to rotate inside the second mounting groove, so that the support arm connected to the outer thread of the second screw can slide downward, and at the same time, one end of the support arm clamps the straw with a limited retaining ring through a rubber tube clamp, so that the suction end of the straw can be stably sent into the liquid to be tested in the detection beaker, thereby facilitating the density detection of the liquid;

[0018] Third, when the straw and the inside of the liquid density meter need to be cleaned after the liquid in the test beaker is tested, it is only necessary to use the second drive motor to drive the second screw on the bracket to rotate, so that the moving platform connected to the outer thread of the second screw can slide on the bracket, and the moving platform moves from right to left, so that the cleaning beaker is moved to the position of the original test beaker. When the cleaning beaker is under the straw, the straw is extended into the cleaning liquid after multiple sedimentation, and the liquid density meter repeatedly sucks and spits out the cleaning liquid to complete the cleaning process. No manual intervention is required throughout the process, which greatly facilitates users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the support arm structure of the utility model;

[0022] Figure 4 The utility model Figure 1 Enlarged view of point A in the middle.

[0023] 1. Base plate; 2. Control module; 3. Fixing plate; 4. Fixing hole; 5. Mounting column; 6. Immersed tube mechanism; 601. First mounting groove; 602. Second mounting groove; 603. First screw rod; 604. Support arm; 605. Rubber tube clamp; 606. First drive motor; 7. Second slide bar; 8. Cleaning mechanism; 801. Second drive motor; 802. Bracket; 803. Moving table; 804. Second screw rod; 805. Cleaning beaker; 9. Testing beaker; 10. Second screw sleeve; 11. First slide bar; 12. Clamping mechanism; 121. Fixing rod; 122. Through hole; 123. Clamping block; 124. Clamping groove; 125. Third screw rod; 126. Rotating block; 13. Liquid density meter; 14. Straw; 15. Slide groove; 16. Third screw sleeve; 17. First screw sleeve; 18. Retaining ring. DETAILED DESCRIPTION

[0024] refer to Figures 1 to 4, an auxiliary instrument for liquid density measurement described in this embodiment includes a bottom plate 1, a mounting column 5 is fixedly installed on the upper end of the bottom plate 1, a clamping mechanism 12 is fixedly installed on the upper end of the front of the mounting column 5, the mounting column 5 clamps a liquid density meter 13 through the clamping mechanism 12, a suction pipe 14 is movably installed on the lower end of the liquid density meter 13, a retaining ring 18 is fixedly connected to the outer side of the suction pipe 14, a sinking tube mechanism 6 is provided on the front of the mounting column 5, and one end of the suction pipe 14 away from the liquid density meter 13 is clamped on the inner side of the sinking tube mechanism 6, a cleaning mechanism 8 is fixedly installed on the upper end of the bottom plate 1, a detection beaker 9 is plugged into the upper end of the cleaning mechanism 8, and a control module 2 is fixedly installed on the front of the bottom plate 1; the upper end of the liquid density meter 13 is also provided with operation buttons and a display screen, etc., which can facilitate users to operate and obtain the results of liquid density measurement;

[0025] The clamping mechanism 12 includes a fixing rod 121, which is fixedly mounted on the front side of the mounting column 5. A through hole 122 is provided on the inner side of the fixing rod 121, and a clamping block 123 is slidably connected to the inner side of the through hole 122. A third screw 125 is threadedly connected to the front side of the fixing rod 121, and a rotary block 126 is fixedly connected to one end of the third screw 125. One end of the third screw 125 away from the rotary block 126 is threadedly extended into the inner side of the through hole 122 and is rotatably connected to the clamping block 123. A clamping groove 124 is provided on the opposite side of the clamping block 123 and the through hole 122. The liquid density meter 13 is clamped on the opposite side of the clamping groove 124. When the liquid density meter 13 is fixed , it is only necessary to insert the hand-held handle at the lower end of the liquid density meter 13 into the through hole 122 of the fixed rod 121, and then use the rotary block 126 to rotate the third screw rod 125 to thread and extend on the fixed rod 121, so that the third screw rod 125 rotates to push the clamping block 123 to slide, and the clamping block 123 can clamp and fix the hand-held handle of the liquid density meter 13 by cooperating with the clamping groove 124 on the opposite side of the through hole 122, so that the user does not need to lift the liquid density meter 13 for a long time during the detection process; a rubber layer is also provided at the clamping groove 124, which can increase friction and prevent slipping to improve the stability of clamping and fixing the liquid density meter 13;

[0026] The immersed tube mechanism 6 includes a first mounting groove 601 and a second mounting groove 602, both of which are provided on the front side of the mounting column 5, a first driving motor 606 is fixedly installed on the inner side of the first mounting groove 601, a first screw rod 603 is rotatably connected to the inner side of the second mounting groove 602, the upper end of the first screw rod 603 is rotatably extended into the inner side of the first mounting groove 601 and is fixedly installed at the output end of the first driving motor 606, a support arm 604 is threadedly connected to the outer side of the first screw rod 603, the rear side end of the support arm 604 is slidably connected to the inner side of the second mounting groove 602, a rubber tube clamp 605 is fixedly connected to the front side end of the support arm 604, and the end of the suction tube 14 away from the liquid density meter 13 is clamped in the rubber tube clamp 60 5, when the detection beaker 9 is at the lower end of the straw 14, it is only necessary to use the first driving motor 606 to drive the first screw 603 to rotate inside the second mounting groove 602, so that the support arm 604 threadedly connected to the outer side of the second screw 804 can slide downward, and at the same time, one end of the support arm 604 clamps the straw 14 with the limit retaining ring 18 through the rubber tube clamp 605, so that the suction end of the straw 14 can be stably sent into the liquid to be tested in the detection beaker 9 for testing, so that the density of the liquid can be conveniently tested; there are two limit retaining rings 18 on the straw 14, and when the straw 14 is fixed at the fixed position of the rubber tube clamp 605, the retaining ring 18 is just at the upper and lower ends of the rubber tube clamp 605, so as to ensure the stability of the straw 14;

[0027] The cleaning mechanism 8 includes a bracket 802, which is fixedly mounted on the upper end of the bottom plate 1, a second drive motor 801 is fixedly mounted on the outer side of the bracket 802, a second screw 804 is rotatably connected to the inner side of the bracket 802, the right end of the second screw 804 rotates through the bracket 802 frame wall and is fixedly mounted on the output end of the second drive motor 801, a moving platform 803 is threadedly connected to the outer side of the second screw 804, the moving platform 803 is slidably connected to the upper end of the bracket 802, a cleaning beaker 805 is plugged into the upper right half of the moving platform 803, and a detection beaker 9 is plugged into the upper left half of the moving platform 803. When the liquid in the detection beaker 9 is When the pipette 14 and the inside of the liquid density meter 13 need to be cleaned after the body test is completed, it is only necessary to use the second drive motor 801 to drive the second screw 804 on the bracket 802 to rotate, so that the moving platform 803 connected to the outer thread of the second screw 804 can slide on the bracket 802, and the moving platform 803 moves from right to left, so that the cleaning beaker 805 moves to the position of the original test beaker 9. When the cleaning beaker 805 is under the pipette 14, the pipette 14 is extended into the cleaning liquid after multiple sedimentation, and the liquid density meter 13 repeatedly sucks and exhales the cleaning liquid to complete the cleaning process, and no manual intervention is required throughout the process.

[0028] refer to Figure 2A sliding groove 15 is symmetrically provided on the inner side of the through hole 122, and the end of the clamping block 123 is slidably connected to the inner side of the through hole 122 through the sliding groove 15. A third screw sleeve 16 is fixedly installed on the inner side of the front face of the fixing rod 121, and one end of the third screw rod 125 away from the rotating block 126 is threadedly penetrated through the third screw sleeve 16. The sliding groove 15 at the through hole 122 can facilitate the sliding of the clamping block 123 at the through hole 122, and the third screw sleeve 16 on the fixing rod 121 can facilitate the thread extension and retraction of the third screw 125 on the fixing rod 121.

[0029] refer to Figure 1 The lower end of the mounting column 5 is fixedly connected to a fixing plate 3, a fixing hole 4 is opened on the inner side of the fixing plate 3, and the fixing plate 3 is fixedly installed by screws penetrating the fixing hole 4 and the upper end of the base plate 1. The fixing plate 3 with the fixing hole 4 can facilitate the installation of the mounting column 5 on the base plate 1.

[0030] refer to Figure 1 and Figure 3 A first screw sleeve 17 is fixedly installed on the inner side of the support arm 604, and the support arm 604 is threadedly connected to the outer side of the first screw rod 603 through the first screw sleeve 17. A first slide bar 11 is symmetrically fixedly installed on the inner side of the second mounting groove 602. One end of the support arm 604 away from the rubber tube rack is slidably connected to the outer side of the first slide bar 11. The first screw sleeve 17 on the support arm 604 can be conveniently threadedly connected to the first screw rod 603, and the first slide bar 11 in the second mounting groove 602 can facilitate one end of the support arm 604 to slide in the second mounting groove 602.

[0031] refer to Figure 1 A second sliding rod 7 is fixedly installed on the inner side of the bracket 802, and the moving platform 803 is slidably connected to the outer side of the second sliding rod 7. A second screw sleeve 10 is fixedly installed on the inner side of the moving platform 803, and the moving platform 803 is threadedly connected to the outer side of the second screw rod 804 through the second screw sleeve 10. The second sliding rod 7 on the bracket 802 can facilitate the sliding of the moving platform 803 on the bracket 802, and the second screw sleeve 10 on the moving platform 803 can facilitate the threaded connection of the moving platform 803 to the outer side of the second screw rod 804.

[0032] Principle and advantages of use: During use, when fixing the liquid density meter 13, it is only necessary to insert the hand-held handle at the lower end of the liquid density meter 13 into the through hole 122 of the fixing rod 121, and then use the rotary block 126 to rotate the third screw rod 125 to thread and extend on the fixing rod 121, so that the third screw rod 125 rotates to push the clamping block 123 to slide, and the clamping block 123 can clamp and fix the hand-held handle of the liquid density meter 13 by cooperating with the clamping groove 124 on the opposite side of the through hole 122;

[0033] During the detection process, when the detection beaker 9 is at the lower end of the straw 14, it is only necessary to use the first drive motor 606 to drive the first screw 603 to rotate inside the second mounting groove 602, so that the support arm 604 threadedly connected to the outer side of the second screw 804 can slide downward, and at the same time, one end of the support arm 604 clamps the straw 14 with the limit retaining ring 18 through the rubber tube clamp 605, so that the suction end of the straw 14 can be stably sent into the liquid to be tested in the detection beaker 9, and then after the liquid density meter 13 completes the detection, the measured result can be displayed on the display screen;

[0034] When the liquid in the detection beaker 9 needs to be cleaned after the detection, the second drive motor 801 is used to drive the second screw 804 on the bracket 802 to rotate, so that the moving platform 803 connected to the outer thread of the second screw 804 can slide on the bracket 802, and the moving platform 803 moves from right to left, so that the cleaning beaker 805 moves to the position of the original detection beaker 9. When the cleaning beaker 805 is under the pipette 14, the pipette 14 is extended into the cleaning liquid after multiple sedimentation, and the liquid density meter 13 repeatedly sucks and exhales the cleaning liquid to complete the cleaning.

Claims

1. An auxiliary instrument for measuring liquid density, comprising a base plate (1), characterized in that: A mounting column (5) is fixedly mounted on the upper end of the base plate (1), a clamping mechanism (12) is fixedly mounted on the upper front end of the mounting column (5), the mounting column (5) clamps a liquid density meter (13) through the clamping mechanism (12), a suction tube (14) is movably mounted on the lower end of the liquid density meter (13), a retaining ring (18) is fixedly connected to the outer side of the suction tube (14), a sinking tube mechanism (6) is provided on the front side of the mounting column (5), one end of the suction tube (14) away from the liquid density meter (13) is clamped on the inner side of the sinking tube mechanism (6), a cleaning mechanism (8) is fixedly mounted on the upper end of the base plate (1), a detection beaker (9) is plugged into the upper end of the cleaning mechanism (8), and a control module (2) is fixedly mounted on the front side of the base plate (1); The clamping mechanism (12) comprises a fixing rod (121), wherein the fixing rod (121) is fixedly mounted on the front side of the mounting column (5), a through hole (122) is provided on the inner side of the fixing rod (121), a clamping block (123) is slidably connected to the inner side of the through hole (122), a third screw rod (125) is threadedly connected to the front side of the fixing rod (121), one end of the third screw rod (125) is fixedly connected to a rotary block (126), one end of the third screw rod (125) away from the rotary block (126) is threadedly extended into the inner side of the through hole (122) and is rotatably connected to the clamping block (123), a clamping groove (124) is provided on the opposite side of the clamping block (123) and the through hole (122), and the liquid density meter (13) is clamped on the opposite side of the clamping groove (124).

2. An auxiliary instrument for liquid density measurement according to claim 1, characterized in that: A sliding groove (15) is symmetrically provided on the inner side of the through hole (122), and the end of the clamping block (123) is slidably connected to the inner side of the through hole (122) through the sliding groove (15). A third screw sleeve (16) is fixedly installed on the inner side of the front face of the fixing rod (121), and one end of the third screw rod (125) away from the rotating block (126) is threadedly penetrated through the third screw sleeve (16).

3. The auxiliary instrument for liquid density measurement according to claim 1, characterized in that: The lower end of the mounting column (5) is fixedly connected to a fixing plate (3), a fixing hole (4) is provided on the inner side of the fixing plate (3), and the fixing plate (3) is fixedly mounted by screws penetrating the fixing hole (4) and the upper end of the bottom plate (1).

4. The auxiliary instrument for liquid density measurement according to claim 1, characterized in that: The pipe sinking mechanism (6) comprises a first mounting groove (601) and a second mounting groove (602), wherein the first mounting groove (601) and the second mounting groove (602) are both arranged on the front side of the mounting column (5), a first driving motor (606) is fixedly mounted on the inner side of the first mounting groove (601), a first screw rod (603) is rotatably connected to the inner side of the second mounting groove (602), an upper end of the first screw rod (603) is rotatably extended into the inner side of the first mounting groove (601) and is fixedly mounted on the output end of the first driving motor (606), a supporting arm (604) is threadedly connected to the outer side of the first screw rod (603), a rear side end of the supporting arm (604) is slidably connected to the inner side of the second mounting groove (602), a rubber tube clamp (605) is fixedly connected to the front side end of the supporting arm (604), and an end of the suction tube (14) away from the liquid density meter (13) is clamped on the inner side of the rubber tube clamp (605).

5. An auxiliary instrument for liquid density measurement according to claim 4, characterized in that: A first screw sleeve (17) is fixedly installed on the inner side of the support arm (604), and the support arm (604) is threadedly connected to the outer side of the first screw rod (603) through the first screw sleeve (17). A first slide bar (11) is symmetrically fixedly installed on the inner side of the second installation groove (602), and one end of the support arm (604) away from the rubber pipe rack is slidably connected to the outer side of the first slide bar (11).

6. The auxiliary instrument for liquid density measurement according to claim 1, characterized in that: The cleaning mechanism (8) comprises a bracket (802), wherein the bracket (802) is fixedly mounted on the upper end of the base plate (1), a second drive motor (801) is fixedly mounted on the outer side of the bracket (802), a second screw rod (804) is rotatably connected to the inner side of the bracket (802), the right end of the second screw rod (804) is rotatably passed through the bracket wall of the bracket (802) and is fixedly mounted on the output end of the second drive motor (801), the outer side of the second screw rod (804) is threadedly connected to a moving platform (803), the moving platform (803) is slidably connected to the upper end of the bracket (802), a cleaning beaker (805) is plugged into the upper right half of the moving platform (803), and the detection beaker (9) is plugged into the upper left half of the moving platform (803).

7. An auxiliary instrument for liquid density measurement according to claim 6, characterized in that: A second sliding rod (7) is fixedly installed on the inner side of the bracket (802), the moving platform (803) is slidably connected to the outer side of the second sliding rod (7), a second screw sleeve (10) is fixedly installed on the inner side of the moving platform (803), and the moving platform (803) is threadedly connected to the outer side of the second screw rod (804) through the second screw sleeve (10).

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