An evaporator for food testing

Abstract

The utility model discloses an evaporator for food detection, comprising a workbench, a hot bath pool is provided on the top of the workbench, a lifting rod is slidably connected inside the workbench, a motor is rotatably connected to the front end of the top of the lifting rod, a connecting rod is fixedly installed on the output shaft at the bottom end of the motor, a beaker is clamped inside the bottom end of the connecting rod, and a hollow rod is fixedly installed on the bottom of the beaker; the utility model drives the clamping assembly to disengage from the clamping groove by pulling the second sliding sleeve, at which time the friction force of the friction rod and the fixed sleeve limits the friction rod from rotating, and relative movement occurs between the rotating beaker and the stationary block, that is, the stirring rod cleans the bottom of the beaker at this time, so as to achieve the purpose of pushing the food sample attached to the inside of the beaker, and avoid the food sample from adhering to the inside of the beaker, so as to facilitate the subsequent operator to thoroughly clean the beaker, making the cleaning cleaner.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to an evaporator for food detection. Background Art

[0002] The evaporator for food testing is a commonly used instrument, mainly used for the detection of volatile residues in samples such as food, medicine, and chemical products. The instrument has functions such as automatic temperature control, automatic sampling, and automatic titration. It is simple to operate and is safe and reliable.

[0003] At present, when using an evaporator to perform heating evaporation testing on food, the food is usually placed in a beaker, and the beaker is rotated and heated for evaporation testing. After the test, manual cleaning is required. However, it is difficult to thoroughly clean the food sample in the beaker by manual cleaning, which may result in incomplete cleaning. Residues are prone to breed bacteria and produce impurities, affecting the experimental results. In addition, cleaning the beaker takes a lot of time, which may affect the efficiency of the experiment. Utility Model Content

[0004] The purpose of the utility model is to provide an evaporator for food testing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an evaporator for food testing, comprising a workbench, a hot bath is provided at the top of the workbench, a lifting rod is slidably connected inside the workbench, the front end of the top of the lifting rod is rotatably connected to a motor, a connecting rod is fixedly installed on the output shaft at the bottom end of the motor, a beaker is clamped inside the bottom end of the connecting rod, a hollow rod is fixedly installed at the bottom of the beaker, a clamping groove is provided on the inner wall of the hollow rod, a friction rod is rotatably connected to the bottom of the hot bath, a connecting protrusion 1 is fixedly installed on the top of the friction rod, a sliding sleeve 1 is slidably connected to the surface of the connecting protrusion 1, a sliding sleeve 2 is fixedly installed on the top of the sliding sleeve 1, a reset spring is fixedly installed on the top of the sliding sleeve 2, a blocking block is fixedly installed on the top of the reset spring, a stirring rod is fixedly installed on the surface of the blocking block, a connecting protrusion 2 is fixedly installed at the center of the bottom end of the blocking block, and a clamping component is fixedly installed on the surface of the sliding sleeve 2.

[0006] Among them, a fixing sleeve is fixedly installed on the bottom of the hot bath, the bottom end of the friction rod is rotatably connected to the inside of the fixing sleeve, the friction force between the friction rod and the fixing sleeve can limit the friction rod from rotating, the top end of the connecting protrusion rod one is rotatably connected to the inside of the bottom end of the connecting protrusion rod two, and the axes of the connecting protrusion rod one, the connecting protrusion rod two and the connecting rod coincide.

[0007] Among them, the sliding sleeve 2 is slidably connected to the surface of the connecting convex rod 2, the cross-sectional size of the blocking block is larger than the hollow rod, the blocking block can block the hollow rod, so that the food sample inside the beaker cannot flow out through the hollow rod, and the stirring rod is slidably connected to the surface of the bottom of the beaker. When the stirring rod rotates on the surface of the bottom of the beaker with the blocking block, the stirring rod pushes and cleans the food sample at the bottom of the beaker to avoid the food sample sticking to the bottom of the beaker and making it inconvenient to clean.

[0008] Among them, the clamping assembly is composed of a spring and a clamping block fixedly connected in combination, the spring is fixedly installed on the surface of the sliding sleeve 2, and the clamping block is clamped in the inside of the clamping groove. At this time, the clamping assembly will rotate with the hollow rod, that is, the stirring rod will rotate with the beaker, and the stirring rod cannot clean the bottom of the beaker.

[0009] Among them, a fixing ring is fixedly installed on the surface of the connecting rod, a winding ring is rotatably connected to the surface of the fixing ring, a fixing rod is fixedly installed on the surface of the fixing ring, two hollow socket plates are arranged at the bottom of the fixing rod, and pull ropes are fixedly connected inside the two hollow socket plates.

[0010] The two hollow sleeve plates are matched and matched with the top of the beaker, and the two hollow sleeve plates are sleeved on the surface of the beaker, so that the beaker is firmly confined at the bottom of the connecting rod and the bottom end of the fixing rod is attached to the top of the hollow sleeve plate.

[0011] The pull rope is wound and connected to the surface of the winding ring. When the winding ring is rotated, the pull rope can be pulled to tighten. At this time, the pull rope pulls the two hollow socket plates closer to each other and fits them on the surface of the beaker.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives the clamping assembly to disengage from the clamping slot by pulling the sliding sleeve two, at which time the friction force of the friction rod and the fixed sleeve limits the friction rod from rotating, and at this time relative movement occurs between the rotating beaker and the stationary blocking block, that is, the stirring rod cleans the bottom of the beaker at this time, thereby achieving the purpose of pushing the food sample attached to the inside of the beaker, avoiding the food sample from adhering to the inside of the beaker, so that subsequent operators can thoroughly clean the beaker, making the cleaning cleaner, and the hollow sleeve plate abuts against the bottom end of the fixed rod, at which time the two hollow sleeve plates are sleeved on the surface of the beaker, and under the pulling of the stretched pull rope, the beaker is stably clamped on the surface of the connecting rod, so that the beaker will not be separated from the connecting rod when it is subsequently rotated and heated, avoiding the situation where the beaker falls and is damaged, thereby increasing the safety during detection and improving the detection efficiency without the need for manual re-detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0018] Figure 5 It is a schematic diagram of the structure of the surface connection of the blocking block of the utility model.

[0019] In the figure: 1. workbench; 2. hot bath; 3. lifting rod; 4. motor; 5. connecting rod; 6. beaker; 7. fixing ring; 8. winding ring; 9. fixing rod; 10. hollow sleeve plate; 11. pull rope; 12. hollow rod; 13. slot; 14. friction rod; 15. connecting protruding rod 1; 16. sliding sleeve 1; 17. sliding sleeve 2; 18. reset spring; 19. blocking block; 20. stirring rod; 21. connecting protruding rod 2; 22. snap-on assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: an evaporator for food testing, comprising a workbench 1, a hot bath 2 is provided on the top of the workbench 1, a lifting rod 3 is slidably connected inside the workbench 1, a motor 4 is rotatably connected to the front end of the top of the lifting rod 3, a connecting rod 5 is fixedly installed on the output shaft at the bottom of the motor 4, a beaker 6 is clamped inside the bottom of the connecting rod 5, a hollow rod 12 is fixedly installed at the bottom of the beaker 6, a clamping groove 13 is provided on the inner wall of the hollow rod 12, and a friction rod 14 is rotatably connected to the bottom of the hot bath 2. A connecting protrusion 15 is fixedly installed on the top of the friction rod 14, and a sliding sleeve 16 is slidably connected to the surface of the connecting protrusion 15. A sliding sleeve 2 is fixedly installed on the top of the sliding sleeve 16, and a reset spring 18 is fixedly installed on the top of the sliding sleeve 2 17. A blocking block 19 is fixedly installed on the top of the reset spring 18. A stirring rod 20 is fixedly installed on the surface of the blocking block 19. A connecting protrusion 21 is fixedly installed at the center of the bottom end of the blocking block 19, and a clamping assembly 22 is fixedly installed on the surface of the sliding sleeve 2 17.

[0022] Among them, a fixing sleeve is fixedly installed at the bottom of the hot bath 2, and the bottom end of the friction rod 14 is rotatably connected to the inside of the fixing sleeve. The friction force between the friction rod 14 and the fixing sleeve can limit the friction rod 14 from rotating. The top end of the connecting convex rod 15 is rotatably connected to the inside of the bottom end of the connecting convex rod 21, and the axes of the connecting convex rod 15, the connecting convex rod 21 and the connecting rod 5 coincide.

[0023] Among them, the sliding sleeve 17 is slidably connected to the surface of the connecting protruding rod 21, the cross-sectional size of the blocking block 19 is larger than the hollow rod 12, and the blocking block 19 can block the hollow rod 12, so that the food sample inside the beaker 6 cannot flow out through the hollow rod 12, and the stirring rod 20 is slidably connected to the surface of the bottom of the beaker 6. When the stirring rod 20 rotates on the surface of the bottom of the beaker 6 with the blocking block 19, the stirring rod 20 pushes and cleans the food sample at the bottom of the beaker 6 to avoid the food sample sticking to the bottom of the beaker 6 and being inconvenient to clean.

[0024] Among them, the clamping assembly 22 is composed of a spring and a clamping block fixedly connected and combined. The spring is fixedly installed on the surface of the sliding sleeve 17, and the clamping block is clamped in the inside of the clamping groove 13. At this time, the clamping assembly 22 will rotate with the hollow rod 12, that is, the stirring rod 20 rotates with the beaker 6 at this time. At this time, the stirring rod 20 cannot clean the bottom of the beaker 6.

[0025] Among them, a fixing ring 7 is fixedly installed on the surface of the connecting rod 5, and a winding ring 8 is rotatably connected to the surface of the fixing ring 7. A fixing rod 9 is fixedly installed on the surface of the fixing ring 7. Two hollow socket plates 10 are arranged at the bottom of the fixing rod 9, and a pull rope 11 is fixedly connected inside the two hollow socket plates 10.

[0026] Among them, the two hollow sleeve plates 10 are matched and matched with the top of the beaker 6, and the two hollow sleeve plates 10 are sleeved on the surface of the beaker 6, so that the beaker 6 is firmly confined at the bottom of the connecting rod 5 and the bottom end of the fixing rod 9 is attached to the top of the hollow sleeve plate 10.

[0027] The pull rope 11 is wound around the surface of the winding ring 8 , and when the winding ring 8 is rotated, the pull rope 11 can be pulled to tighten, and at this time, the pull rope 11 pulls the two hollow sleeve plates 10 closer to each other and fits on the surface of the beaker 6 .

[0028] Working principle: When in use, the operator initially clamps the beaker 6 at the bottom of the connecting rod 5, and then rotates the winding ring 8. At this time, the winding ring 8 winds the pull rope 11, and the wound pull rope 11 will pull the two hollow socket plates 10 on the surface closer to each other. At this time, the hollow socket plates 10 are pulled by the pull rope 11 and tend to move upward, while the fixed rod 9 abuts against the top of the hollow socket plate 10 so that the hollow socket plate 10 cannot move upward. Therefore, the two hollow socket plates 10 are pulled by the pull rope 11. The two hollow sleeve plates 10 are moved closer to each other until the two hollow sleeve plates 10 are sleeved on the surface of the beaker 6. At this time, the hollow sleeve plates 10 are stably sleeved on the surface of the beaker 6 under the pulling of the stretched pull rope 11 and the limitation of the fixed rod 9. That is, the beaker 6 is stably limited on the surface of the connecting rod 5. Then, the motor 4 is rotated to adjust the angle of the connecting rod 5 so that the beaker 6 clamped at the bottom end of the connecting rod 5 is located inside the hot bath 2. Then, the operator pours hot water into the hot bath 2 to heat the hot bath 2.

[0029] Afterwards, the operator drives the motor 4 to drive the connecting rod 5 to rotate, and at this time, the connecting rod 5 drives the clamped beaker 6 to rotate. In the initial state, the clamping block of the clamping assembly 22 is clamped in the inner part of the clamping groove 13, and at this time, the return spring 18 is in a compressed state. At this time, the beaker 6 will drive the fixedly connected hollow rod 12 to rotate as the connecting rod 5 rotates, and the hollow rod 12 will drive the clamping clamping assembly 22 to rotate, and the clamping assembly 22 will drive the sliding sleeve 17 to rotate. Since the sliding sleeve 17 is limited by the connecting convex rod 21 and cannot rotate therewith, and the sliding sleeve 16 is limited by the connecting convex rod 15 and cannot rotate therewith, the sliding sleeve 17 will drive the slidingly connected connecting convex rod 21 to rotate, and at this time, the connecting convex rod 21 drives the fixedly connected blocking block 19 to rotate, and the blocking block 19 drives the stirring rod 20 and the beaker 6 to rotate coaxially, and at this time, the beaker 6 and the stirring rod 20 remain relatively stationary;

[0030] When the evaporation test of the food sample inside the beaker 6 is completed, the operator can push the sliding sleeve 16 downward, and the sliding sleeve 16 will drive the fixedly connected sliding sleeve 2 17 to slide downward on the surface of the connecting protrusion 21, and then the sliding sleeve 2 17 will drive the block of the card assembly 22 to disengage from the card slot 13, and then the operator drives the motor 4 to drive the beaker 6 to rotate. However, due to the friction between the friction rod 14 and the fixed sleeve, the friction between the inner wall of the hollow rod 12 and the block cannot drive the sliding sleeve 2 17 to rotate. At this time, the sliding sleeve 2 17 is stationary inside the hot bath 2, that is, the connecting protrusion 21, the block 19 and the stirring rod 20 are all kept stationary. Therefore, the beaker 6 rotates relative to the stirring rod 20, and the stirring rod 20 starts to rotate relative to the beaker 6. At this time, the stirring rod 20 cleans the inside of the beaker 6 to prevent the food sample from sticking to the bottom wall of the beaker 6.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An evaporator for food testing, comprising a workbench (1), characterized in that: A hot bath (2) is provided at the top of the workbench (1), a lifting rod (3) is slidably connected inside the workbench (1), a motor (4) is rotatably connected to the front end of the top of the lifting rod (3), a connecting rod (5) is fixedly installed on the output shaft at the bottom of the motor (4), a beaker (6) is clamped inside the bottom of the connecting rod (5), a hollow rod (12) is fixedly installed at the bottom of the beaker (6), a clamping groove (13) is provided on the inner wall of the hollow rod (12), a friction rod (14) is rotatably connected to the bottom of the hot bath (2), and the top of the friction rod (14) is fixedly installed A connecting protrusion (15) is provided, the surface of the connecting protrusion (15) is slidably connected to a sliding sleeve (16), a sliding sleeve (17) is fixedly installed on the top of the sliding sleeve (16), a return spring (18) is fixedly installed on the top of the sliding sleeve (17), a blocking block (19) is fixedly installed on the top of the return spring (18), a stirring rod (20) is fixedly installed on the surface of the blocking block (19), a connecting protrusion (21) is fixedly installed at the center of the bottom end of the blocking block (19), and a clamping assembly (22) is fixedly installed on the surface of the sliding sleeve (17).

2. The evaporator for food testing according to claim 1, characterized in that: A fixing sleeve is fixedly installed at the bottom of the hot bath (2); the bottom end of the friction rod (14) is rotatably connected to the inside of the fixing sleeve; the top end of the connecting protrusion rod 1 (15) is rotatably connected to the inside of the bottom end of the connecting protrusion rod 2 (21); and the axes of the connecting protrusion rod 1 (15), the connecting protrusion rod 2 (21) and the connecting rod (5) coincide.

3. The evaporator for food testing according to claim 1, characterized in that: The second sliding sleeve (17) is slidably connected to the surface of the second connecting protruding rod (21), the cross-sectional size of the blocking block (19) is larger than the hollow rod (12), and the stirring rod (20) is slidably connected to the surface of the bottom of the beaker (6).

4. The evaporator for food testing according to claim 1, characterized in that: The clamping assembly (22) is composed of a spring and a clamping block fixedly connected and assembled, the spring is fixedly mounted on the surface of the second sliding sleeve (17), and the clamping block is clamped in the interior of the clamping groove (13).

5. The evaporator for food testing according to claim 1, characterized in that: A fixing ring (7) is fixedly mounted on the surface of the connecting rod (5), a winding ring (8) is rotatably connected to the surface of the fixing ring (7), a fixing rod (9) is fixedly mounted on the surface of the fixing ring (7), two hollow sleeve plates (10) are arranged at the bottom of the fixing rod (9), and a pull rope (11) is fixedly connected inside the two hollow sleeve plates (10).

6. The evaporator for food testing according to claim 5, characterized in that: The two hollow sleeve plates (10) are matched and matched with the top of the beaker (6), and the bottom end of the fixing rod (9) is attached to the top end of the hollow sleeve plates (10).

7. The evaporator for food testing according to claim 5, characterized in that: The pull rope (11) is wound around and connected to the surface of the winding ring (8).

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