Adjustable quantitative spoon
Through the design of an adjustable dosing spoon, volume adjustment is achieved using an L-shaped baffle and an adjustment mechanism, which solves the problems of inflexible use and high cost of existing dosing spoons and improves the flexibility and accuracy of use.
Patent Information
- Application Number
- CN202422669303.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Most existing metering spoons are designed with a fixed volume, and users need to replace metering spoons of different specifications to meet different liquid adding needs, resulting in high usage costs and insufficient flexibility and accuracy.
Provided is an adjustable dosing spoon, which adjusts the volume of the spoon head through the dividing plate and the closing plate of the L-shaped baffle, and combines the adjustment mechanism and the extension component to achieve flexible adjustment and precise control of the volume.
It improves the flexibility and accuracy of use, reduces the cost of use, does not require the replacement of different models of dosing spoons, and is simple and convenient to operate.
Smart Images
Figure CN223389248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of quantitative devices, in particular to an adjustable quantitative spoon. Background Art
[0002] In laboratories and the pharmaceutical industry, precise and quantitative addition of liquids is a crucial part of daily work. While traditional dosing tools, such as droppers and graduated cylinders, are widely used, their convenience and precision in some cases fall short of optimal use. Dosing spoons, however, are widely used in many applications due to their simplicity and low cost. However, existing dosing spoons also present technical challenges that hinder their effectiveness.
[0003] Most of the metering spoons in the prior art are designed with a fixed volume. Users can only meet different liquid adding needs by replacing metering spoons of different specifications. This method not only increases the cost of use, but also limits the flexibility and accuracy of use. Utility Model Content
[0004] The purpose of the utility model is to provide an adjustable dosing spoon to solve the problems existing in the above-mentioned prior art. The volume of the spoon head can be adjusted according to needs, thereby improving the flexibility of use and reducing the cost of use.
[0005] To achieve the above purpose, the present invention provides the following solutions:
[0006] The utility model provides an adjustable dosing spoon, comprising a spoon head, a spoon handle and an L-shaped baffle; the spoon head has a accommodating groove and an upper end opening connected to the accommodating groove; one end of the spoon handle is fixedly connected to the outer side wall of the spoon head; the L-shaped baffle comprises a partition plate and a closing plate; the partition plate is slidably arranged in the accommodating groove along a first direction, and the partition plate can be locked in the position after moving in the accommodating groove, and the partition plate divides the accommodating groove into a use cavity and a non-use cavity; the partition plate divides the upper end opening into a first upper opening and a second upper opening, the first upper opening is the opening of the use cavity, and the second upper opening is the opening of the non-use cavity; one end of the closing plate is fixedly connected to an end of the partition plate close to the upper end opening; when the partition plate moves along the first direction, the closing plate can keep closing the second upper opening of the non-use cavity.
[0007] Preferably, an adjustment mechanism is connected to the L-shaped baffle; the adjustment mechanism includes a sliding rod and a limit button assembly; a sliding groove is provided on the spoon handle, and the sliding rod is slidably arranged in the sliding groove along the first direction, and the first direction is the same as the extension direction of the spoon handle; one end of the sliding rod is fixedly connected to the closing plate, and the other end of the sliding rod is provided with a mounting groove, and the limit button assembly is arranged in the mounting groove, and a plurality of limit grooves are provided in the sliding groove, and each of the limit grooves is arranged along the first direction, and the limit button assembly has a retractable limit portion, and when the limit portion is clamped in one of the limit slots, the relative position of the sliding rod and the sliding slot is fixed.
[0008] Preferably, the limit button assembly includes a fixed sleeve, a pressing rod and a return spring; the fixed sleeve is used to be fixedly installed in the installation groove, and the fixed sleeve has a hollow channel; the pressing rod is inserted into the hollow channel, and the upper end of the pressing rod is fixedly provided with a pressing button, and the lower end of the pressing rod is fixedly provided with a limit block, the limit block forms the limit portion, and the upper end of the pressing button and the limit block are both located outside the hollow channel; the return spring is sleeved on the pressing rod, and a limit is provided at one end of the hollow channel near the limit block. The cam is provided with a cam ring, the upper end of the return spring abuts against the lower end of the push button, and the lower end of the return spring abuts against the limit cam ring; the size of the limit block is larger than the inner diameter of the limit cam ring; a middle guide groove is provided at the bottom of the sliding groove, and the extension direction of the middle guide groove is the same as the first direction; the pressing rod can slide in the middle guide groove along the first direction; in a natural state, the limit block is in a state of being stuck in one of the limit grooves, and after the push button is pressed downward, the limit block can fall out of the corresponding limit groove.
[0009] Preferably, a guide block is fixedly provided on the limit block, and the guide block is slidably provided in the middle guide groove along the first direction; after the limit block escapes from the limit groove, the guide block can keep sliding in the middle guide groove.
[0010] Preferably, a guide groove is provided on at least one inner side wall of the sliding groove, and a clamping block is fixedly provided at a corresponding position of the sliding rod. The clamping block is slidably provided in the guide groove along a second direction, and the second direction is parallel to the first direction.
[0011] Preferably, an extension component is further provided on the spoon handle, and the extension component is slidably provided on the spoon handle along the first direction.
[0012] Preferably, the extension component includes a sliding handle and a locker, the sliding handle is slidably mounted on the spoon handle along the first direction, the locker is arranged on the sliding handle, and the locker can lock the relative position of the sliding handle and the spoon handle.
[0013] Preferably, the locker is a fastening bolt, an internal threaded hole is provided on the sliding handle, and the fastening bolt is threadedly connected to the internal threaded hole; the threaded end of the fastening bolt extends out of the internal threaded hole and abuts against the spoon handle.
[0014] Preferably, the end of the spoon handle away from the spoon head is in a constricted shape.
[0015] Preferably, the top of one end of the push button away from the push rod is concave.
[0016] Compared with the prior art, the utility model has achieved the following technical effects:
[0017] The adjustable dosing spoon provided by the present invention adjusts the volume of the usable cavity by adjusting the position of the partition plate in the L-shaped baffle in the accommodating groove of the spoon head. At this time, the non-usable cavity is automatically closed by the closing plate of the L-shaped baffle, thereby achieving adjustable volume of the usable cavity, improving the flexibility of use, eliminating the need to replace multiple models and sizes, and reducing the cost of use.
[0018] Furthermore, the arrangement of the adjustment mechanism enables precise adjustment of the volume of the dosing spoon's working chamber. By sliding the sliding rod within the sliding slot and utilizing the cooperation between the limiting portion of the limiting button assembly and the limiting slot, the position of the partition plate can be precisely controlled. When the limiting portion of the limiting button assembly is engaged in the limiting slot, the relative position of the sliding rod and the sliding slot is fixed, ensuring the stability of the working chamber volume and the accuracy of each measured amount. During use, simply press the limiting button assembly to disengage the limiting portion from the current limiting slot, and then slide the sliding rod along the sliding slot to adjust the size of the working chamber, making operation simple and convenient.
[0019] Furthermore, in the natural state, due to the action of the return spring, the limit block (i.e., the limit part) is stuck in the limit groove, which can stably fix the position of the sliding rod, thereby ensuring that the position of the partition plate is fixed, so that the volume of the use cavity of the metering spoon remains unchanged; the size of the limit block is larger than the inner diameter of the limit convex ring. This design prevents the limit block from excessively retracting into the hollow channel of the fixed sleeve under the action of the return spring, ensuring that the limit block can be effectively stuck in the limit groove, maintaining the normal use state of the metering spoon; the design of the press button makes the operation very convenient; the setting of the return spring ensures that the press button has good reset performance.
[0020] Furthermore, the provision of the guide block can make the movement process of the limit block more precise and stable after it escapes from the limit groove.
[0021] Furthermore, the provision of the guide groove and the blocking block can effectively prevent the sliding rod from shaking during the sliding process, thereby ensuring its stable sliding.
[0022] Furthermore, the extension component is slidably arranged on the spoon handle along the first direction, which enables the dosing spoon to adapt to containers of different depths, thereby improving operational efficiency and accuracy.
[0023] Furthermore, the locker can lock the relative position of the sliding handle and the spoon handle, so that the metering spoon can remain stable after being extended to the required length; when the use length of the metering spoon needs to be changed, it is only necessary to loosen the locker, adjust the position of the sliding handle, and then lock it again, which makes adjustment simpler and more convenient.
[0024] Furthermore, the use of a fastening bolt as a locking device can provide a very stable fixing effect; when the length of the metering spoon needs to be frequently changed, the threaded connection method of the fastening bolt can achieve quick adjustment.
[0025] Furthermore, the constricted end of the spoon handle can facilitate the sliding handle to be sleeved on the spoon handle, making installation easier.
[0026] Furthermore, the concave push button can increase the contact area between the push button and the finger, improve the pressing comfort, and enable the pressing force to be more concentrated. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0028] Figure 1 This is a schematic diagram of the overall structure of the adjustable dosing spoon provided by the utility model;
[0029] Figure 2 This is a schematic cross-sectional view of the handle of the adjustable dosing spoon provided by the utility model;
[0030] Figure 3 for Figure 2 A magnified view of the structure at point A;
[0031] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the adjustable dosing spoon provided by the utility model;
[0032] Figure 5 This is a schematic diagram of the matching structure of the extension component and the spoon handle in the adjustable dosing spoon provided by the utility model.
[0033] In the picture:
[0034] 100-Adjustable dosing spoon;
[0035] 10-spoon head; 11-use cavity;
[0036] 20-spoon handle; 21-sliding groove; 22-guide groove; 23-narrow mouth;
[0037] 30-L-type baffle; 31-dividing plate; 32-closing plate;
[0038] 40 - sliding rod; 41 - mounting slot; 42 - fixing sleeve; 421 - limiting convex ring; 43 - pressing button; 44 - return spring; 45 - limiting block; 46 - guide block; 47 - middle guide slot; 48 - limiting slot; 49 - clamping block;
[0039] 50-sliding handle; 51-fastening bolt. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0041] The purpose of the utility model is to provide an adjustable dosing spoon to solve the problems existing in the prior art. The volume of the spoon head can be adjusted according to needs, thereby improving the flexibility of use and reducing the cost of use.
[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0043] Example 1
[0044] This embodiment provides an adjustable dosing spoon 100, which is mainly used for, but not limited to, adding liquid. Figures 1 to 5As shown, it includes a spoon head 10, a spoon handle 20 and an L-shaped baffle 30; the spoon head 10 has a receiving groove and an upper end opening connected to the receiving groove; one end of the spoon handle 20 is fixedly connected to the outer side wall of the spoon head 10; the L-shaped baffle 30 includes a partition plate 31 and a closing plate 32; the partition plate 31 is slidably arranged in the receiving groove along the first direction, and the partition plate 31 can be locked in the position after moving in the receiving groove, and the partition plate 31 divides the receiving groove into a use chamber 11 and a non-use chamber 11; the partition plate 31 divides the upper end opening into a first upper opening and a second upper opening, the first upper opening is the opening of the use chamber 11, and the second upper opening is the opening of the non-use chamber 11; one end of the closing plate 32 is fixedly connected to one end of the partition plate 31 close to the upper end opening; when the partition plate 31 moves along the first direction, the closing plate 32 can keep closing the second upper opening of the non-use chamber 11.
[0045] By adjusting the position of the partition plate 31 in the L-shaped baffle 30 in the accommodating groove of the spoon head 10, the volume of the use cavity 11 is adjusted. At this time, the non-use cavity 11 is automatically closed by the closing plate 32 of the L-shaped baffle 30, thereby achieving adjustable volume of the use cavity 11, improving the flexibility of use, eliminating the need to replace multiple different models and sizes, and reducing the cost of use.
[0046] Specifically, the user can dynamically adjust the volume of the spoon head 10 (ie, the volume of the use cavity 11 ) according to actual needs without having to replace dosing spoons of different specifications, thereby greatly improving the flexibility of use.
[0047] The following are the relevant descriptions of the adjustment mechanism for achieving the movement and locking of the L-shaped baffle 30:
[0048] Among the optional solutions of this embodiment, it is more preferred that Figures 1 to 4As shown, an adjustment mechanism is connected to the L-shaped baffle 30; the adjustment mechanism includes a sliding rod 40 and a limit button assembly; a sliding groove 21 is provided on the spoon handle 20, and the sliding rod 40 is slidably arranged in the sliding groove 21 along a first direction, which is the same as the extension direction of the spoon handle 20; one end of the sliding rod 40 is fixedly connected to the closing plate 32, and the other end of the sliding rod 40 is provided with a mounting groove 41, and the limit button assembly is disposed in the mounting groove 41. The sliding groove 21 is provided with a plurality of limit grooves 48, each of which is arranged along the first direction. The limit button assembly has a retractable limit portion. When the limit portion is engaged in a limit groove 48, the relative position of the sliding rod 40 and the sliding groove 21 is fixed. The provision of the adjustment mechanism enables precise adjustment of the volume of the dosing spoon cavity 11. By sliding the sliding rod 40 in the sliding groove 21 and utilizing the cooperation between the limiting portion of the limiting button assembly and the limiting groove 48, the position of the partition plate 31 can be accurately controlled; when the limiting portion of the limiting button assembly is clamped in the limiting groove 48, the relative position of the sliding rod 40 and the sliding groove 21 is fixed, which can ensure the stability of the volume of the use cavity 11 and the accuracy of the amount measured each time; when in use, it is only necessary to press the limiting button assembly to disengage the limiting portion from the current limiting groove 48, and then the sliding rod 40 can be slid along the sliding groove 21 to adjust the size of the use cavity 11, which is simple and convenient to operate.
[0049] Among them, the relevant matching structure setting description of the sliding rod 40 and the spoon handle 20 is as follows:
[0050] Among the optional solutions of this embodiment, it is more preferred that Figures 1 to 4 As shown, a guide groove 22 is provided on at least one inner sidewall of the sliding groove 21. A latch block 49 is fixedly provided at a corresponding position on the sliding rod 40. The latch block 49 slides within the guide groove 22 along a second direction parallel to the first direction. The arrangement of the guide groove 22 and the latch block 49 effectively prevents the sliding rod 40 from shaking during sliding, ensuring stable sliding.
[0051] Among them, the relevant setting instructions for the limit button component on the sliding rod 40 are:
[0052] Among the optional solutions of this embodiment, it is more preferred that Figures 1 to 4As shown, the limit button assembly includes a fixed sleeve 42, a pressing rod and a return spring 44; the fixed sleeve 42 is used to be fixedly installed in the installation groove 41, and the fixed sleeve 42 has a hollow channel; the pressing rod is arranged in the hollow channel, and the upper end of the pressing rod is fixedly provided with a pressing button 43, and the lower end of the pressing rod is fixedly provided with a limit block 45, and the limit block 45 forms a limit portion. The upper end of the pressing button 43 and the limit block 45 are both located outside the hollow channel; the return spring 44 is sleeved on the pressing rod, and a limit convex ring 421 is provided at one end of the hollow channel near the limit block 45. The upper end of the return spring 44 abuts against the lower end of the pressing button 43, and the lower end of the return spring 44 abuts against the limiting protrusion 421; the size of the limiting block 45 is larger than the inner diameter of the limiting protrusion 421; a middle guide groove 47 is provided at the bottom of the sliding groove 21, and the extension direction of the middle guide groove 47 is the same as the first direction; the pressing rod can slide in the middle guide groove 47 along the first direction; in the natural state, the limiting block 45 is in a state of being stuck in a limiting groove 48, and after the pressing button 43 is pressed downward, the limiting block 45 can fall out of the corresponding limiting groove 48. In the natural state, due to the action of the return spring 44, the limit block 45 (i.e., the limit part) is stuck in the limit groove 48, which can stably fix the position of the sliding rod 40, thereby ensuring that the position of the partition plate 31 is fixed, so that the volume of the use cavity 11 of the metering spoon remains unchanged; the size of the limit block 45 is larger than the inner diameter of the limit convex ring 421. This design prevents the limit block 45 from excessively retracting into the hollow channel of the fixed sleeve 42 under the action of the return spring 44, ensuring that the limit block 45 can be effectively stuck in the limit groove 48, maintaining the normal use state of the metering spoon; the design of the press button 43 makes the operation very convenient; the setting of the return spring 44 ensures that the press button 43 has good reset performance.
[0053] In the optional solution of this embodiment, it is more preferred that the top of the end of the push button 43 away from the push rod is concave. The concave push button 43 can increase the contact area between it and the finger, improve the pressing comfort, and can make the pressing force more concentrated.
[0054] Among the optional solutions of this embodiment, it is more preferred that Figure 4 As shown, a guide block 46 is fixedly mounted on the limit block 45. The guide block 46 is slidably mounted in a first direction within a central guide groove 47. After the limit block 45 is released from the limit groove 48, the guide block 46 can continue to slide within the central guide groove 47. The provision of the guide block 46 allows the limit block 45 to move more accurately and stably after it is released from the limit groove 48.
[0055] Specifically, the limiting groove 48 includes two half grooves, each half groove is communicated with the middle guide groove 47 , and the two half grooves are located on both sides of the middle guide groove 47 .
[0056] Specifically, in the vertical direction, the upper end of the guide block 46 is higher than the upper end of the limiting block 45 , and the lower end of the guide block 46 is flush with the lower end of the limiting block 45 .
[0057] Specifically, the guide block 46 and the limit block 45 are fixedly arranged in a cross shape.
[0058] Here, the following description is provided to adjust the length of the spoon handle 20:
[0059] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 5 As shown, the spoon handle 20 is further provided with an extension component, which is slidably provided on the spoon handle 20 along a first direction. The extension component is slidably provided on the spoon handle 20 along the first direction, which enables the dosing spoon to adapt to containers of different depths, thereby improving operational efficiency and accuracy.
[0060] Specifically, by providing an extension component, the length of the spoon handle 20 can be adjusted to meet the needs of different operating environments, avoiding the limitations brought about by the fixed length of the spoon handle 20 of the traditional quantitative spoon, and improving work efficiency.
[0061] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 5 As shown, the extension assembly includes a sliding handle 50 and a locking device. The sliding handle 50 is slidably mounted on the spoon handle 20 in a first direction. The locking device is provided on the sliding handle 50 and can lock the relative position of the sliding handle 50 and the spoon handle 20. The locking device can lock the relative position of the sliding handle 50 and the spoon handle 20, so that the metering spoon can remain stable after being extended to the desired length. When the length of the metering spoon needs to be changed, it is only necessary to loosen the locking device, adjust the position of the sliding handle 50, and then lock it again, making adjustment simple and convenient.
[0062] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 5 As shown, the locking device is a fastening bolt 51. The sliding handle 50 has an internally threaded hole, into which the fastening bolt 51 is threaded. The threaded end of the fastening bolt 51 extends out of the internally threaded hole and abuts against the spoon handle 20 (specifically, against the inner bottom surface of the sliding groove 21 of the spoon handle 20). Using the fastening bolt 51 as a locking device can provide a very stable fixation. If the length of the dosing spoon needs to be frequently changed, the threaded connection of the fastening bolt 51 can achieve quick adjustment.
[0063] Specifically, the bottom end of the fastening bolt 51 is in contact with the spoon handle 20 and the bolt 51 is tightened by the knob to squeeze them together, so that the sliding handle 50 is limited by the friction force generated.
[0064] Among the optional solutions of this embodiment, it is more preferred that Figure 2 and Figure 5 As shown, the end of the spoon handle 20 away from the spoon head 10 is in a constricted shape 23. The constricted shape 23 of the spoon handle 20 end can facilitate the sliding handle 50 to be sleeved on the spoon handle 20, making it easy to install.
[0065] Specifically, the lower edge of one end of the spoon handle 20 away from the spoon head 10 is chamfered to form a constricted shape 23 at the end.
[0066] Among them, the description of the working principle:
[0067] When it is necessary to adjust the actual required volume of the working cavity 11 in the spoon head 10, the pressing button 43 is pressed downward, so that it compresses the return spring 44 and drives the limit block 45 and the guide block 46 to move down, so that the limit block 45 is disengaged from the locking groove 48. At this time, the sliding rod 40 can be moved by pushing the pressing button 43, and the movement of the sliding rod 40 will drive the L-shaped baffle 30 to move synchronously, thereby adjusting the size of the working cavity 11 in the spoon head 10. After the adjustment is completed, the limit block 45 is locked in the corresponding limit groove 48, thereby limiting the position of the sliding rod 40 and the L-shaped baffle 30. When it is necessary to adjust the working length of the spoon handle 20, the fastening bolt 51 can be loosened to extend the sliding handle 50 in the elongation direction, and the fastening bolt 51 can be tightened according to the actual required position so that the fastening bolt 51 is pressed against the spoon handle 20 again, thereby locking and limiting the position of the sliding handle 50.
[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.
Claims
1. An adjustable dosing spoon, characterized by: Including spoon head, spoon handle and L-shaped baffle; The spoon head has a receiving groove and an upper opening communicating with the receiving groove; One end of the spoon handle is fixedly connected to the outer side wall of the spoon head; The L-shaped baffle includes a partition plate and a closing plate; the partition plate is slidably arranged in the accommodating groove along a first direction, and the partition plate can be locked in the position after moving in the accommodating groove, and the partition plate divides the accommodating groove into a use cavity and a non-use cavity; the partition plate divides the upper end opening into a first upper opening and a second upper opening, the first upper opening is the opening of the use cavity, and the second upper opening is the opening of the non-use cavity; One end of the closing plate is fixedly connected to one end of the partition plate close to the upper opening; when the partition plate moves along the first direction, the closing plate can keep closing the second upper opening of the non-use cavity.
2. The adjustable dosing spoon according to claim 1, characterized in that: The L-shaped baffle is connected to an adjustment mechanism; The adjustment mechanism includes a sliding rod and a limit button assembly; a sliding groove is provided on the spoon handle, and the sliding rod is slidably arranged in the sliding groove along the first direction, and the first direction is the same as the extension direction of the spoon handle; one end of the sliding rod is fixedly connected to the closing plate, and the other end of the sliding rod is provided with a mounting groove, and the limit button assembly is arranged in the mounting groove, and a plurality of limit grooves are provided in the sliding groove, and each of the limit grooves is arranged along the first direction, and the limit button assembly has a retractable limit portion, and when the limit portion is clamped in one of the limit slots, the relative position of the sliding rod and the sliding slot is fixed.
3. The adjustable dosing spoon according to claim 2, characterized in that: The limit button assembly includes a fixed sleeve, a pressing rod and a return spring; The fixing sleeve is used to be fixedly installed in the installation groove, and the fixing sleeve has a hollow channel; The pressing rod is arranged in the hollow channel, and a pressing button is fixedly provided at the upper end of the pressing rod, and a limiting block is fixedly provided at the lower end of the pressing rod, the limiting block forms the limiting portion, and the upper end of the pressing button and the limiting block are both located outside the hollow channel; The return spring is sleeved on the pressing rod, and a limiting convex ring is provided in the hollow channel at one end close to the limiting block. The upper end of the return spring abuts against the lower end of the pressing button, and the lower end of the return spring abuts against the limiting convex ring. The size of the limiting block is larger than the inner diameter of the limiting convex ring. A middle guide groove is provided at the bottom of the sliding groove, and the extension direction of the middle guide groove is the same as the first direction; the pressing rod can slide in the middle guide groove along the first direction; In a natural state, the limiting block is in a state of being stuck in one of the limiting slots, and after the push button is pressed downward, the limiting block can escape from the corresponding limiting slot.
4. The adjustable dosing spoon according to claim 3, characterized in that: A guide block is fixedly provided on the limit block, and the guide block is slidably provided in the middle guide groove along the first direction; After the limiting block escapes from the limiting groove, the guide block can keep sliding in the middle guide groove.
5. The adjustable dosing spoon according to claim 2, characterized in that: A guide groove is provided on at least one inner side wall of the sliding groove, and a clamping block is fixedly provided at a corresponding position of the sliding rod. The clamping block is slidably provided in the guide groove along a second direction, and the second direction is parallel to the first direction.
6. The adjustable dosing spoon according to claim 1, characterized in that: The spoon handle is further provided with an extension component, and the extension component is slidably provided on the spoon handle along the first direction.
7. The adjustable dosing spoon according to claim 6, characterized in that: The extension component includes a sliding handle and a locker. The sliding handle is slidably mounted on the spoon handle along the first direction. The locker is arranged on the sliding handle and can lock the relative position of the sliding handle and the spoon handle.
8. The adjustable dosing spoon according to claim 7, characterized in that: The locker is a fastening bolt, an internal threaded hole is provided on the sliding handle, and the fastening bolt is threadedly connected in the internal threaded hole; the threaded end of the fastening bolt extends out of the internal threaded hole and abuts against the spoon handle.
9. The adjustable dosing spoon according to claim 7, characterized in that: One end of the spoon handle away from the spoon head is in a constricted shape.
10. The adjustable dosing spoon according to claim 3, characterized in that: The top of one end of the push button away from the push rod is concave.