CN213956220U

CN213956220U - Calibration device for depth of drug dissolution instrument

Info

Publication number: CN213956220U
Application number: CN202022862792.7U
Authority: CN
Inventors: 杜国林; 吴勇; 屠炳芳; 任兴发; 邵锋伟
Original assignee: Shanghai Wellrich Testing Technology Co ltd
Current assignee: Shanghai Wellrich Testing Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-13
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a device for calibrating the depth of a medicine dissolving-out instrument, which comprises a measuring head, a measuring rod component, a dissolving-out cup, a fixed module component, a dial indicator, a shaft, a hanging basket, a rotary paddle, a limit flat plate and a bayonet lock; the measuring device comprises a hanging basket and a rotating paddle, wherein the hanging basket and the rotating paddle are placed in a dissolution cup, the hanging basket or the rotating paddle is arranged at the corresponding position of the bottom of a shaft, a fixed module component is arranged on the shaft, a dial indicator is arranged in a hole position corresponding to the side end of the fixed module component, a limiting flat plate is arranged at the side end of the fixed module component and movably hinged with the fixed module component through a clamping pin, a measuring rod component is arranged at the lower end of the dial indicator and connected with the measuring rod component, and the other end of the measuring rod component is connected with a measuring head; the utility model has the advantages of simple and reasonable design, measure portably and the precision is accurate.

Description

Calibration device for depth of drug dissolution instrument

Technical Field

The utility model relates to a medicine dissolves out appearance measurement technical field, concretely relates to calibrating device of medicine dissolution appearance degree of depth.

Background

The existing depth measurement methods are various: one is a plastic ball, the size of the ball is fixed, the positive and negative tolerance is large, accurate data of the height of a shaft or a hanging basket cannot be read, and the tolerance range of actual data and pharmacopoeia is unclear; the other is to use a dial indicator and a data line to transmit the measured height data by wire, and the mode influences the operation efficiency when measuring; the other is to use a caliper, which is relatively original, the measurement process is relatively disturbed by human factors, and the measurement precision is affected by the shaking of the basket or the rotating paddle when the measuring device descends, so that a new dissolution meter depth measuring device needs to be designed by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the structure design is simple and reasonable, the measurement is simple and convenient, and the precision is accurate; the limiting flat plate can be used as a measuring part and can also play a limiting role on the hanging basket or the rotating paddle, the problem that the hanging basket or the rotating paddle shakes to influence the measuring precision when the existing measuring device descends can be effectively solved, and the depth of the medicine dissolution instrument is guaranteed to be stable in the whole structure.

In order to solve the above problem, the utility model provides a calibrating device of medicine dissolving-out instrument degree of depth which characterized in that: the measuring device comprises a measuring head, a measuring rod assembly, a dissolving-out cup, a fixed module assembly, a dial indicator, a shaft, a hanging basket, a rotating paddle, a limiting flat plate and a clamping pin; the measuring device comprises a hanging basket and a rotating paddle, wherein the hanging basket and the rotating paddle are placed in a dissolution cup, the hanging basket or the rotating paddle is arranged at the corresponding position of the bottom of a shaft, a fixed module component is arranged on the shaft, a dial indicator is arranged in a hole position corresponding to the side end of the fixed module component, a limiting flat plate is arranged at the side end of the fixed module component and movably hinged with the fixed module component through a clamping pin, a measuring rod component is arranged at the lower end of the dial indicator and connected with the measuring rod component, and the other end of the measuring rod component is connected with a measuring head;

the fixed module assembly is divided into five parts and comprises a shaft sleeve fixing part, a supporting bearing part, a propeller shaft limiting part and an extending positioning seat part, wherein the supporting bearing part is arranged at one end of the shaft sleeve fixing part, the extending positioning seat part is arranged at the side end of the supporting bearing part, the propeller shaft limiting part is arranged at the other end of the supporting bearing part, a limiting fixed rod part is upwards arranged at the upper end of the propeller shaft limiting part, a limiting flat plate is fixedly arranged between the limiting fixed rod parts, and the limiting fixed rod part is movably hinged with the limiting flat plate through a clamping pin.

Preferably, the measuring rod assembly is of an L-shaped structure; the measuring rod assembly comprises a measuring transmission rod and a measuring connecting rod fixedly arranged at the upper end of the measuring transmission rod, one end of the measuring connecting rod is connected to the lower end of the dial indicator, and one end of the measuring transmission rod is connected with the measuring head.

Preferably, the shaft sleeve fixing part is sleeved on a front hinge which is arranged at the other end of the shaft and is matched with the shaft, and the rotating shaft penetrates through positioning holes in the shaft sleeve fixing part and the front hinge from top to bottom and is clamped by a clamp spring, so that the shaft sleeve fixing part and the front hinge are connected and fixed into a whole and are sleeved at the outer end of the shaft.

Preferably, one end of the front hinge is provided with a threaded fixing through hole, and the knurled bolt penetrates through the threaded fixing through hole and abuts against the shaft so as to fixedly sleeve the shaft sleeve fixing part and the front hinge on the shaft.

Preferably, the dial indicator is fixed in the corresponding hole position of the extending and positioning seat part through a plunger.

Preferably, the paddle shaft limiting part is arranged at the bottom end of the hanging basket or the rotating paddle.

Adopt above-mentioned structure, its beneficial effect lies in:

the utility model has simple and reasonable structure design, simple and convenient measurement and accurate precision, the measuring rod component is arranged at the lower end of the dial indicator and is connected, the measuring rod component is in an L-shaped structure, the side end of the fixed mould component is provided with a limit flat plate and is movably hinged with the fixed mould component through a clamping pin, the measuring rod component is arranged at the lower end of the dial indicator and is connected with the measuring head, the measuring device is fixed through the contact of the limit flat plate with the bottom of the hanging basket and the bottom of the blade, the limit flat plate is rotated to a vertical state, the limit flat plate and the limit fixed rod part are fixed by a plunger at the upper end, the dial indicator head is connected with the L-shaped measuring rod component, the axle center of the measuring head of the measuring rod and the axle center of the hanging basket or the axle of the blade are in a line, the dial indicator head is zero-adjusted under a natural state (under the condition of not being compressed), the distance from the measuring head on the measuring rod to the upper surface of the limit flat plate is a fixed value, when the shaft drives the measuring device to descend to the bottom of the dissolution cup, the measuring head retracts after being touched, so that the retracted distance is directly fed back to the dial indicator, the change value on the dial indicator is subtracted from the fixed value, namely the distance from the bottom of the hanging basket or the paddle to the bottom of the dissolution cup, and the depth value can be obtained.

The fixed module component of the utility model is divided into five parts, comprising a shaft sleeve fixing part, a supporting bearing part, a paddle shaft limiting part and an extending positioning seat part, one end of the shaft sleeve fixing part is provided with a supporting bearing part, the side end of the supporting bearing part is provided with an extending positioning seat part, the other end of the supporting and bearing part is provided with a paddle shaft limiting part, the upper end of the paddle shaft limiting part is provided with an upward limiting fixed rod part, the spacing fixed rod part is fixed with spacing dull and stereotyped between the spacing fixed rod part, the bayonet lock is with spacing fixed rod part and spacing dull and stereotyped activity hinge joint, and the measuring head on the measuring stick is a fixed value to the distance of spacing dull and stereotyped upper surface, and spacing dull and stereotyped also can play spacing effect to hanging flower basket or rotatory oar when can regard as measuring part, can effectively solve when current measuring device goes up the decline hanging flower basket or rotatory oar produce the problem of the influence measuring precision that rocks, guarantees the holistic stability of structure.

Drawings

Fig. 1 is a schematic view of a measuring device for calibrating the depth of a drug dissolution apparatus.

Fig. 2 is a schematic structural diagram of another embodiment of fig. 1.

Fig. 3 is a side view of a dissolution meter depth measurement apparatus.

Fig. 4 is a schematic structural diagram of another embodiment of fig. 3.

In the figure: 1. a measuring head; 2. a measuring rod assembly; 3. a dissolution cup; 4. fixing a module component; 401. a shaft sleeve fixing part; 402. a support bearing part; 403. a paddle shaft limiting part; 404. an extension positioning seat part; 405 limiting and fixing the rod part; 5. a plunger; 6. a dial indicator; 7. a shaft; 8. a front hinge; 9. knurling a bolt; 10A, hanging basket; 10B, a blade; 11. a rotating shaft; 12. a clamp spring; 13. a limiting flat plate and 14 clamping pins.

Detailed Description

The invention is further explained below with reference to the drawings and examples.

A calibration device for the depth of a drug dissolution instrument comprises a measuring head 1, a measuring rod assembly 2, a dissolution cup 3, a fixed module assembly 4, a dial indicator 6, a shaft 7, a hanging basket 10A, a rotary paddle 10B, a limiting flat plate 13 and a bayonet 14; the hanging basket 10A and the rotating paddle 10B are placed in the dissolution cup 3, the hanging basket 10A or the rotating paddle 10B is installed at the corresponding position of the bottom of a shaft 7, a fixed module component 4 is installed on the shaft 7, the dial indicator 6 is installed in a corresponding hole position at the side end of the fixed module component 4, a limiting flat plate 13 is arranged at the side end of the fixed module component 4 and movably hinged with the fixed module component through a clamping pin 14, the measuring rod component 2 is arranged at the lower end of the dial indicator 6 and connected, and the other end of the measuring rod component 2 is connected with the measuring head 1;

the fixed module component 4 is divided into five parts, and comprises a shaft sleeve fixing part 401, a supporting bearing part 402, a paddle shaft limiting part 403 and an extending positioning seat part 404, wherein the supporting bearing part 402 is arranged at one end of the shaft sleeve fixing part 401, the extending positioning seat part 404 is arranged at the side end of the supporting bearing part 402, the paddle shaft limiting part 403 is arranged at the other end of the supporting bearing part 402, a limiting fixed rod part 405 is upwards arranged at the upper end of the paddle shaft limiting part 403, a limiting flat plate 13 is fixedly arranged between the limiting fixed rod parts 405, and the limiting fixed rod part 405 and the limiting flat plate 13 are movably hinged through a bayonet 14.

The measuring rod component 2 is of an L-shaped structure; the measuring rod component 2 comprises a measuring transmission rod and a measuring connecting rod fixedly arranged at the upper end of the measuring transmission rod, one end of the measuring connecting rod is connected to the lower end of the dial indicator 6, and one end of the measuring transmission rod is connected with the measuring head 1.

Axle sleeve fixed part 401 cup joints the preceding hinge 8 that is equipped with the adaptation in the axle 7 other end, and thereby rotation axis 11 from top to bottom passes axle sleeve fixed part 401 and the locating hole on the preceding hinge 8 and blocks through jump ring 12 and makes axle sleeve fixed part 401 and preceding hinge 8 be connected and fix an organic whole and cup joint axle 7 outer end.

And one end of the front hinge 8 is provided with a threaded fixing through hole, and the knurled bolt 9 penetrates through the threaded fixing through hole and abuts against the shaft 7 so as to fixedly sleeve the shaft sleeve fixing part 401 and the front hinge 8 on the shaft 7.

The dial indicator 6 is fixed in a corresponding hole of the extending and positioning seat 404 through the plunger 5, and the paddle shaft limiting part 403 is arranged at the bottom end of the hanging basket 10A or the rotating paddle 10B.

For the convenience of understanding the above technical solutions of the present invention, the following detailed description will be made on the above technical solutions of the present invention through specific installation and use modes.

The specific installation process is as follows: firstly, the front hinge 8 and the rotating shaft 11 are placed in place and clamped by the clamp spring 12, the fixed module assembly 4 and the rotating shaft 11 are connected into a whole, the shaft sleeve fixing part 401 of the fixed module assembly 4 is installed on the shaft 7, the limiting flat plate 13 at the lower end of the paddle shaft limiting part 403 of the fixed module assembly is tightly attached to the bottom plane of the hanging basket 10A or the paddle 10B, then the knurled bolt 11 is screwed down, the fixed module assembly 4 is fixed, the dial indicator 6 is installed in the corresponding hole of the fixed module 4 and fixed by the plunger 5, the measuring rod 2 is connected to the lower end of the dial indicator, the measuring head 1 is connected to the lower end of the measuring rod, and at the moment, after the dial indicator 6 is installed, the distance from the limiting flat plate 13 to the top point of the measuring head is a constant value.

The measurement process comprises the following steps: firstly, the limiting flat plate 13 is adjusted to be in a vertical state from a state of contacting with the bottom of the hanging basket 10A or the paddle 10B, the measuring device fixed on the shaft 7 is slowly and slowly put into the dissolution cup 3, after the shaft 7 descends to a corresponding position, after the measuring head 1 props against the central point of the bottom of the dissolution cup 3, the measuring head 1 and the measuring rod 2 are stressed to transmit the changed distance to the dial indicator 6, the dial indicator 6 measures the changed distance, and the depth value from the bottom of the hanging basket 10A or the blade of the rotating shaft 11 to the bottom of the dissolution cup 3 is obtained by subtracting the measured value from a constant value.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A calibration device for the depth of a drug dissolution instrument is characterized in that: comprises a measuring head (1), a measuring rod component (2), a dissolving-out cup (3), a fixed module component (4), a dial indicator (6), a shaft (7), a hanging basket (10A), a rotating paddle (10B), a limiting flat plate (13) and a bayonet lock (14); the hanging basket (10A) and the rotating paddle (10B) are placed in the dissolution cup (3), the hanging basket (10A) or the rotating paddle (10B) is installed at the corresponding position of the bottom of the shaft (7), the shaft (7) is provided with the fixed module component (4), the dial indicator (6) is installed in the corresponding hole position of the side end of the fixed module component (4), the side end of the fixed module component (4) is provided with the limiting flat plate (13) and is movably hinged with the fixed module component through a clamping pin (14), the measuring rod component (2) is arranged at the lower end of the dial indicator (6) and is connected with the measuring head (1), and the other end of the measuring rod component (2) is connected with the measuring head (1);

the fixed module component (4) is divided into five parts and comprises a shaft sleeve fixing part (401), a supporting bearing part (402), a paddle shaft limiting part (403) and an extending positioning seat part (404), wherein the supporting bearing part (402) is arranged at one end of the shaft sleeve fixing part (401), the extending positioning seat part (404) is arranged at the side end of the supporting bearing part (402), the paddle shaft limiting part (403) is arranged at the other end of the supporting bearing part (402), a limiting fixed rod part (405) is upwards arranged at the upper end of the paddle shaft limiting part (403), a limiting flat plate (13) is fixedly arranged between the limiting fixed rod parts (405), and the limiting fixed rod part (405) is movably hinged to the limiting flat plate (13) through a clamping pin (14).

2. The device for calibrating the depth of a drug dissolution apparatus of claim 1, further comprising: the measuring rod assembly is of an L-shaped structure; the measuring rod assembly comprises a measuring transmission rod and a measuring connecting rod fixedly arranged at the upper end of the measuring transmission rod, one end of the measuring connecting rod is connected to the lower end of the dial indicator (6), and one end of the measuring transmission rod is connected with the measuring head (1).

3. The device for calibrating the depth of a drug dissolution apparatus of claim 1, further comprising: axle sleeve fixed part (401) cup joints preceding hinge (8) that axle (7) other end was equipped with the adaptation, thereby rotation axis (11) from top to bottom pass axle sleeve fixed part (401) and preceding locating hole on hinge (8) and block through jump ring (12) and make axle sleeve fixed part (401) and preceding hinge (8) be connected and fix as an organic whole and cup joint axle (7) outer end.

4. The device for calibrating the depth of a drug dissolution apparatus of claim 3, further comprising: and one end of the front hinge (8) is provided with a thread fixing through hole, and the knurled bolt (9) penetrates through the thread fixing through hole and abuts against the shaft (7) so as to fixedly sleeve the shaft sleeve fixing part (401) and the front hinge (8) on the shaft (7).

5. The device for calibrating the depth of a drug dissolution apparatus of claim 1, further comprising: the dial indicator (6) is fixed in a corresponding hole position of the extension positioning seat part (404) through the plunger (5).

6. The device for calibrating the depth of a drug dissolution apparatus of claim 1, further comprising: the paddle shaft limiting part (403) is arranged at the bottom end of the hanging basket (10A) or the rotating paddle (10B).