Pressing head capable of regulating and controlling discharging amount and container

Abstract

The utility model discloses a pressing head capable of regulating and controlling dosage, which comprises a pressing rod, one end of the pressing rod is provided with a discharge head, the outer surface of the pressing rod is provided with Down threads, and the Down threads comprise a left-hand thread and a right-hand thread; the limiting piece is connected with the Down thread through the first thread; the fastening piece is connected with the Down thread through a second thread and located on the side, close to the discharging head, of the limiting piece; the first thread and the second thread are opposite in rotation direction; one of the limiting piece and the fastening piece is provided with a bulge, and the other one of the limiting piece and the fastening piece is provided with a buckling arm which can be buckled on the bulge; the fastening piece has a locking position and a releasing position relative to the limiting piece; the fastening piece is connected with the limiting piece at the locking position and can prevent the limiting piece from rotating relative to the Down thread; when the fastening piece is at the release position, the fastening piece and the limiting piece are unlocked so that the limiting piece can rotate relative to the Down thread. According to the pressing head, on the basis that the discharging amount can be adjusted, the precision consistency of the discharging amount can be guaranteed.

Description

Technical Field

[0001] This utility model relates to a pressing head and a container, and more particularly to a pressing head and a container with adjustable discharge volume. A pressing head with adjustable discharge volume refers to a pressing head that has the function of adjusting the discharge volume. Background Technology

[0002] Milk tea shops, coffee shops, and similar establishments typically use pumps to dispense ingredients such as syrups, fructose, and fruit juices from containers when preparing beverages. Due to the nature of beverage formulations, the industry generally requires pumps with different dispensing capacities, such as 5cc, 8cc, 10cc, 15cc, 20cc, 25cc, and 30cc. Standard pumps usually do not allow for adjustable dispensing volumes, necessitating the preparation of a wide variety of pump sizes. Furthermore, standard pumps use CC or ML as units of measurement, rather than grams. These limitations restrict the current range of pumps used to expand the diversity of finished beverage products and broaden the scope of beverage development.

[0003] In some related technical solutions, press heads capable of adjusting the liquid output have emerged. For example, patent CN115973589A discloses a pump head with adjustable pump output and self-locking to prevent leakage. Its inner and outer threaded caps are connected by threads, and the pump output is adjusted by rotating the outer threaded cap. Specifically, a guide rod with graduations is provided on the upper surface of the inner threaded cap. When the outer threaded cap rotates along the external thread on the inner threaded cap to its lowest point, the top surface of the outer threaded cap is flush with the graduation line (maximum liquid output graduation line) at the bottom of the guide rod. When the outer threaded cap rotates to its highest point, its top surface contacts the top of the guide rod and the bottom of the press head, at which point it is in a self-locking state. However, when the press head is pressed, vibration / friction may cause the relative position of the outer threaded cap to change, thus compromising the accuracy and consistency of the liquid output. Utility Model Content

[0004] In order to solve at least one of the problems existing in the prior art as described above, this utility model proposes a pressing head with adjustable discharge volume.

[0005] In some implementations, the press head with adjustable discharge rate includes:

[0006] The pressing rod has a discharge head at one end, and the outer surface of the pressing rod has a Don thread, which includes a left-hand thread and a right-hand thread.

[0007] A limiting element, which has a first thread and is connected to a Tang thread through the first thread;

[0008] The fastening element has a second thread and is connected to the Tang thread through the second thread, and is located on the side of the limiting element near the discharge head; the first thread and the second thread have opposite directions of rotation (i.e., one is left-handed and the other is right-handed);

[0009] The fastening member has a locked position and a released position relative to the limiting member; when in the locked position, the fastening member is connected to the limiting member and can prevent the limiting member from rotating relative to the Tang thread; when in the released position, the fastening member is unlocked from the limiting member so that the limiting member can rotate relative to the Tang thread; when in the locked position, the fastening member is connected to the limiting member by fastening and / or direct abutment.

[0010] In some implementations, the press head with adjustable discharge rate includes:

[0011] The pressing rod has a discharge head at one end, and the outer surface of the pressing rod has a Don thread, which includes a left-hand thread and a right-hand thread.

[0012] A limiting element, which has a first thread and is connected to a Tang thread through the first thread;

[0013] The fastening element has a second thread and is connected to the Tang thread through the second thread, and is located on the side of the limiting element near the discharge head; the first thread and the second thread have opposite directions of rotation (i.e., one is left-handed and the other is right-handed);

[0014] In the limiting member and the fastening member, one is provided with a protrusion, and the other is provided with a fastening arm that can be fastened to the protrusion (that is, if the limiting member is provided with a protrusion, then the fastening member is provided with a fastening arm, and vice versa).

[0015] The fastening element has a locked position and a released position relative to the limiting element. In the locked position, the fastening element connects to the limiting element and prevents the limiting element from rotating relative to the Donnelman thread. In the released position, the fastening element releases the limiting element, allowing the limiting element to rotate relative to the Donnelman thread. When the pressing head is pressed to its limit position, the limiting element abuts against the container lid, thereby limiting the pressing stroke of the pressing head, i.e., limiting the discharge volume. The position of the limiting element on the pressing rod can be adjusted by rotating the thread, and the limiting element is locked by the fastening element, thus adjusting the pressing stroke of the pressing head, i.e., adjusting the discharge volume. The first and second threads have opposite directions of rotation and connect with the Donnelman thread, and the engagement ensures that the limiting element is precisely locked on the pressing rod when the latch arm and protrusion are engaged, ensuring the stability of the pressing stroke and precise control of the discharge volume. When the pressing head is pressed, vibration / friction can cause the limiting element and / or the fastening element to rotate relative to the pressing rod. Because the threads (first thread and second thread) of the limiting element and the fastening element have opposite directions of rotation, they may tend to move towards each other or away from each other. When they tend to move towards each other, the original direct abutment connection between the limiting element and the fastening element will become tighter, and the accuracy of the output will not be affected. When they tend to move away from each other, the interlocking of the limiting element and the fastening element will prevent them from separating, thus ensuring the accuracy of the output remains unaffected. Furthermore, because the threads of the limiting element and the fastening element have opposite directions of rotation and are both threaded onto the Donnerian thread of the pressing rod, and because they are interlocked, if one of them tends to rotate left or right, the other will pull it back, thus neutralizing its rotational tendency. The forces cancel each other out unless the interlocking relationship is released. In other words, due to the mechanism of tensioning and locking elements (here, the protrusion and the locking arm form a fastening), the limiting element can be kept at any position within the maximum pressing stroke of the pressing rod without loosening, thereby ensuring that any discharge amount within the maximum pressing stroke range can be adjusted, and ensuring the accuracy and repeatability of the discharge amount, that is, the accuracy of the discharge amount is consistently guaranteed. Assuming that the maximum pressing stroke of the adjustable discharge head in one embodiment is 100CC, then the discharge amount can be adjusted arbitrarily within the range of 0CC to 100CC, and the accuracy is highly consistent.

[0016] The adjustable discharge head provided by this utility model is not limited to adjusting the amount of liquid, but can also be used for other forms of fluids, pastes, gels, or even foams. In other words, it can adjust the amount of any material that can be discharged by extrusion, and the discharge accuracy of liquids is better. Its application is not limited to the food industry such as milk tea shops and coffee shops, but can also be used in the beauty, pharmaceutical, chemical, and daily necessities industries.

[0017] In some implementations, the number of latch arms is n, where n ≥ 2, and they are arranged sequentially at intervals along the circumference of the pressing rod. For example, n = 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, or 22. Each latch arm has independent deformation and / or elasticity.

[0018] In some implementations, protrusions are arranged around the limiting or fastening elements. This facilitates engagement with the buckle arms, especially those arranged at intervals.

[0019] In some implementations, the buckle arm is ring-shaped and has a certain degree of elasticity, which allows it to expand the inner diameter during the buckling process and then return to its original inner diameter size.

[0020] In some implementations, a retaining ring is also included, with a third thread on the inner surface of the retaining ring and a fourth thread on the outer surface of the latching arm for screwing into the third thread. In the locked position, the latching arm engages with the protrusion, and the retaining ring is threadedly connected to the latching arm. At this point, the presence of the retaining ring mitigates any deformation allowance that might occur if the latching arm expands outward due to pressure, thus preventing deformation of the latching arm. The retaining ring is particularly suitable for pressing materials with high viscosity and those requiring large output volumes. It is often paired with pump assemblies with greater elasticity and / or resilience, but ordinary elasticity and / or resilience pump assemblies are not excluded.

[0021] In some implementations, the inner wall of the latch arm has a protrusion that avoids the recessed portion that engages with the protrusion, allowing it to conform to the surrounding area of ​​the protrusion. The protrusion helps prevent deformation of the latch arm. Furthermore, in a press head with adjustable discharge rate and a fastening ring, the protrusion further enhances the effectiveness of the fastening ring. The latch arm being elastic or having multiple protrusions spaced apart circumferentially along the press bar, as well as the presence of protrusions conforming to the surrounding area of ​​the protrusion, all contribute to a more stable engagement.

[0022] In some implementations, the protrusions are strip-shaped and there are multiple protrusions, which are arranged sequentially at intervals along the circumference of the pressing rod, and the length direction of the protrusions is along the length direction of the pressing rod.

[0023] In some embodiments, a gap exists between the inner wall of the latch arm and the surrounding area of ​​the protrusion. In some embodiments, the protrusion is located on the outer periphery of one of the limiting member and the fastening member, and the latch arm extends beyond the front end face of the other of the limiting member and the fastening member; wherein, when the fastening member is in the locked position, the front end face of the limiting member abuts against the front end face of the fastening member. The abutment of the two front end faces facilitates the force transmission between the limiting member and the fastening member, avoiding the latch arm bearing all the force and thus preventing deformation or damage to the latch arm. Furthermore, while abutting, the latch arm engages with the protrusion.

[0024] In some implementations, one of the limiting member and the fastening member has a first outer diameter section and a second outer diameter section, the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section, and the protrusion is located on the outer periphery of the second outer diameter section; the buckle arm extends out of the front end face of the other of the limiting member and the fastening member;

[0025] When the fastening element is in the locked position, the front end face of the second outer diameter section abuts against the front end face of either the limiting element or the fastening element. Furthermore, simultaneously, the buckle arm engages with the protrusion.

[0026] In some embodiments, a recess is formed between the protrusion and the front end face of the first outer diameter segment; the recess is formed by the protrusion surrounding the outer periphery of the second outer diameter segment; the radial length of the recess is used to characterize the outer diameter size of the second outer diameter segment.

[0027] In some implementations, the buckle arm extends laterally into m buckle arm heads, where m ≥ 2; the buckle arm heads are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess to lock the limiting member and the fastening member.

[0028] In some implementations, one of the limiting member and the fastening member has a first outer diameter section and a second outer diameter section, and the other has a third outer diameter section and a fourth outer diameter section; the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section, the inner diameter of the first outer diameter section is smaller than the inner diameter of the second outer diameter section, and the protrusion is located on the inner wall of the second outer diameter section; the outer diameter of the third outer diameter section is larger than the outer diameter of the fourth outer diameter section, and the buckle arm extends out of the front end face of the third outer diameter section but does not exceed the front end face of the fourth outer diameter section;

[0029] When the fastener is in the locked position, the front end face of the first outer diameter section abuts against the front end face of the fourth outer diameter section.

[0030] In some embodiments, a recess is formed between the protrusion and the front end face of the first outer diameter segment; the recess is formed by the protrusion surrounding the inner wall of the second outer diameter segment; the radial length of the protrusion is used to characterize the inner diameter of the second outer diameter segment.

[0031] In some implementations, the buckle arm extends laterally into m buckle arm heads, where m ≥ 2; the buckle arm heads are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess to lock the limiting member and the fastening member.

[0032] In some implementations, one of the limiting member and the fastening member has a first outer diameter section, a second outer diameter section, and a protruding part; the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section; the protruding part extends beyond the front end face of the first outer diameter section but does not exceed the front end face of the second outer diameter section, and the number of them is p, p≥2, and they are arranged sequentially at intervals along the circumference of the pressing rod; the protrusion is located on the outer surface of the protruding part; the buckle arm extends beyond the front end face of the other of the limiting member and the fastening member;

[0033] In this invention, when the fastening element is in the locked position, the front end face of the second outer diameter section abuts against the front end face of either the limiting element or the fastening element. The values ​​of n, m, and p in this invention can be the same or different.

[0034] In some implementations, the pressing lever is provided with discharge quantity scale lines, which include capacity scale lines and / or weight scale lines.

[0035] In some implementations, the pressing rod is a hollow screw with a Don thread on its outer surface; the limiting member and the fastening member are nuts with opposite directions of rotation that can simultaneously engage with the Don thread, and one has a latch arm and the other has a protrusion that can engage with the latch arm.

[0036] Furthermore, this utility model also discloses a container, comprising: a container body, a lid, a pump assembly, and a press head with adjustable discharge volume as described in any of the above embodiments; the lid is connected to the container opening of the container body, and the pump assembly is located within the container body and connected to the lid and the press head with adjustable discharge volume. The container provided by this utility model has the properties of a liquid container, but is not limited to holding only liquids; it can also be used to hold other forms of fluids, pastes, gels, or even foamy materials, i.e., it is suitable for holding all materials that can be discharged by extrusion.

[0037] Beneficial effects include:

[0038] The aforementioned adjustable-dosage press head and container, when adjusting the liquid output of the press head, switch the fastening element to the release position. This releases the limiting element, allowing it to rotate relative to the thread (Tang thread) of the press rod. This adjusts the positional displacement of the limiting element along the length of the press rod. After adjustment, rotate the fastening element back to the limiting element, switching to the locking position. The two elements interlock to form a single unit. Any left- or right-hand rotation tendency of one element is counteracted by the pull of the other, preventing the fastening element from rotating relative to the press rod thread and thus preventing displacement along the length of the press rod. Therefore, when the press head is pressed, vibration / friction may cause the limiting element and / or the fastening element to rotate relative to the press rod. The fastening element prevents displacement along the length of the press rod, ensuring the accuracy of the press rod's stroke and consequently, the consistency of the dispensing volume. Therefore, it can be seen that the pressing head of this utility model can ensure the accuracy and consistency of the output while being able to adjust the output.

[0039] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram illustrating the connection structure between the adjustable discharge head, the cover, and the pump assembly in one embodiment.

[0042] Figure 2 for Figure 1 A cross-sectional view.

[0043] Figure 3 This is a partial structural diagram of a pressing head with adjustable discharge volume according to one embodiment.

[0044] Figure 4 for Figure 3 A cross-sectional view.

[0045] Figure 5 This is a structural schematic diagram of a fastening component according to one embodiment.

[0046] Figure 6 This is a partial structural diagram of a pressing head with adjustable discharge volume according to one embodiment.

[0047] Figure 7 for Figure 6 A cross-sectional view.

[0048] Figure 8 for Figure 1 A schematic diagram of the middle limiting component.

[0049] Figure 9 This is a schematic diagram of the protrusion and recess of a limiting member or fastening member in one embodiment. Figure 1 .

[0050] Figure 10 for Figure 9 Side view.

[0051] Figure 11 This is a schematic diagram of the structure of the latch arm and latch arm head of a limiting member or fastening member according to one embodiment. Figure 1 .

[0052] Figure 12 This is a schematic diagram of the buckle arm head being inserted into the recess from the outside, according to one embodiment.

[0053] Figure 13 A schematic diagram of the fastening structure in one embodiment. Figure 1

[0054] Figure 14A schematic diagram of the fastening structure in one embodiment. Figure 2 .

[0055] Figure 15 A schematic diagram of the fastening structure in one embodiment. Figure 3 .

[0056] Figure 16 This is a schematic diagram of the structure of the latch arm and latch arm head of a limiting member or fastening member according to one embodiment. Figure 2 .

[0057] Figure 17 This is a schematic diagram of the protrusion and recess of a limiting member or fastening member in one embodiment. Figure 2 .

[0058] Figure 18 for Figure 17 Cross-sectional view.

[0059] Figure 19 A schematic diagram of the fastening structure in one embodiment. Figure 4 .

[0060] Figure 20 A schematic diagram of the protrusion setting portion of the limiting member according to one embodiment. Figure 2 .

[0061] Explanation of reference numerals in the attached figures:

[0062] 110. Pressing lever; 111. Left-hand thread; 112. Right-hand thread; 113. Discharge scale;

[0063] 120. Discharge head;

[0064] 130. Limiting component; 130a. First outer diameter section; 130b. Second outer diameter section;

[0065] 140. Fastening component; 140a. Third outer diameter section; 140b. Fourth outer diameter section;

[0066] 150. Fastening ring; 151. Raised ridge;

[0067] 160. Buckle arm; 161. Protrusion; 162. Buckle arm head;

[0068] 170. Protrusion; 171. Recess; 172. Protrusion setting part;

[0069] 200. Cover;

[0070] 300. Pump assembly. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0072] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0074] If an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0075] The term "right-hand thread" as used in this article refers to a thread that is screwed in clockwise. "Left-hand thread" refers to a thread that is screwed in counterclockwise.

[0076] One embodiment of this utility model provides a pressing head with adjustable discharge volume. See [link to relevant documentation]. Figures 1 to 4The adjustable discharge head includes a pressing rod 110, a discharge head 120, a limiting member 130, and a fastening member 140. The discharge head 120 is located at one end of the pressing rod 110. The outer surface of the pressing rod 110 has a Don thread, which includes a left-hand thread 111 and a right-hand thread 112. The pressing rod 110 has a discharge volume scale 113, which includes a capacity scale and / or a weight scale.

[0077] The limiting member 130 is screwed onto the pressing rod 110 via a first thread that matches the Donnerian thread, i.e., it is threadedly connected to the pressing rod 110 via the first thread. The fastening member 140 is fitted onto the pressing rod 140 via a second thread that matches the Donnerian thread and can rotate rotatably along the length of the pressing rod 140. The fastening member 140 is located on the side of the limiting member 130 closer to the discharge head 120. The first and second threads have opposite directions of rotation (i.e., one is a left-hand thread and the other is a right-hand thread, both of which mate with the Donnerian thread). In the locked position, the fastening member 140 is connected to the limiting member by engaging and / or directly abutting, thereby preventing the limiting member from rotating relative to the Donnerian thread.

[0078] In the limiting member 130 and the fastening member 140, one is provided with a protrusion 170, and the other is provided with a fastening arm 160 that can be fastened to the protrusion 170. In this embodiment, the limiting member 130 is provided with a protrusion 170, and the protrusion 170 surrounds the outer wall of the limiting member 130. Figure 8 The fastening element 140 is provided with multiple fastening arms 160 (e.g., in...). Figure 5 The fastening element 140 shown has 6 fastening arms 160, which are arranged sequentially at intervals along the circumference of the pressing rod 110.

[0079] The fastening element 140 has a locked position and a released position relative to the limiting element 130. When the fastening element 140 is in the locked position, it is connected to the limiting element 130 (e.g., directly abutting, engaging, or both abutting and engaging), thereby preventing the limiting element 130 from rotating relative to the Don thread; when the fastening element 140 is in the released position, it is released from the limiting element 130 so that the limiting element 130 can rotate relative to the Don thread.

[0080] See Figure 4 In this embodiment, the limiting member 130 has a first outer diameter section 130a and a second outer diameter section 130b. The outer diameter of the first outer diameter section 130a is larger than the outer diameter of the second outer diameter section 130b. The protrusion 170 is located on the outer periphery of the second outer diameter section 130b. The latch arm 160 extends out of the front end face of the fastening member 140. When the fastening member 140 is in the locked position, the front end face of the second outer diameter section 130b abuts against the front end face of the fastening member 140, and the latch arm 160 is engaged with the protrusion 170.

[0081] An adjustable discharge head is used in a container. The container includes: a container body (not shown), a cover 200, a pump assembly 300, and a press head. The cover 200 is connected to the container opening of the container body, and the pump assembly 300 is located inside the container body and connected to the cover 200. A press rod 110 is movably inserted through the cover 200 and connected to the pump assembly 300. Pressing and releasing the adjustable discharge head drives the pump assembly 300 to draw material from the container body, which then passes through the inside of the press rod 110 and is output through the discharge head 120. Understandably, the press rod 110 and the discharge head 120 each have channels so that the material drawn by the pump assembly 300 can pass sequentially through the channels in the press rod 110 and the discharge head 120. The specific structure and working principle of the pump assembly 300 are existing technologies and will not be described in detail here.

[0082] When adjusting the output of the aforementioned pressing head, the fastening member 140 is switched to the release position, releasing the limiting member 130. This allows the limiting member 130 to rotate relative to the Donnellock thread of the pressing rod 110, thereby adjusting the positional displacement of the limiting member 130 along the length of the pressing rod 110. This allows for arbitrary adjustment of the output within the adjustment range, enabling the use of one pressing head to replace multiple specifications and models. After the limiting member 130 is adjusted to the correct position, the fastening member 140 is switched to the locking position. The fastening member 140 then prevents the limiting member 130 from rotating relative to the Donnellock thread of the pressing rod 110, thus preventing the limiting member 130 from shifting along the length of the pressing rod 110. Thus, when the pressing head is pressed, and the pressing rod 110 rotates due to vibration / friction, the fastening member 140 can prevent the limiting member 130 from shifting along the length of the pressing rod 110. Therefore, the accuracy of the pressing stroke of the pressing rod 110 can be guaranteed, thereby ensuring the consistency of the output accuracy. It can be seen that the pressing head of this embodiment, while allowing adjustment of the output, can ensure the consistency of the output accuracy during use.

[0083] When the pressing head is pressed, vibration / friction may cause the limiting member 130 and / or the fastening member 140 to rotate relative to the pressing rod 110. Due to the opposite directions of the Donnerian threads and the threads (first thread and second thread) of the limiting member 130 and the fastening member 140, they may tend to move towards each other or away from each other. When they tend to move towards each other, the original direct abutment connection between the limiting member 130 and the fastening member 140 will become tighter, and the accuracy of the output will not be affected. When they tend to move away from each other, the limiting member 130 and the fastening member 140 need to be engaged to prevent them from separating, thus ensuring the accuracy of the output is not affected. Therefore, engagement better ensures the accuracy of the output. Please refer to [reference needed]. Figure 3In some embodiments, the discharge quantity scale line 113 includes a capacity scale line. When the fastener 140 is switched to the release position, the position of the limiting member 130 can be adjusted according to the capacity scale line so that the position of the limiting member 130 matches the scale corresponding to the required discharge quantity.

[0084] In some embodiments, the discharge quantity scale includes a weight scale. When the fastener is switched to the release position, the position of the limiting member can be adjusted according to the weight scale so that the position of the limiting member matches the scale corresponding to the required discharge quantity.

[0085] In some embodiments, the pressing lever 110 may only have a volume scale and no weight scale. If it is necessary to adjust the dispensing amount to the desired weight, an electronic scale can be used to adjust the position of the limiting member 130. For example, if the user wants to adjust the dispensing amount of liquid ingredients (such as fructose liquid) to 6 grams, since the density of fructose liquid is greater than that of water, 6 grams of fructose corresponds to a volume of less than 6 cc. Therefore, the limiting member 130 can be adjusted to around the 5 cc scale line first, and then the adjustable dispensing head can be pressed to dispense the liquid. The fructose liquid output from the adjustable dispensing head can then be weighed using an electronic scale to determine if the weight is 6 grams. If it is less than 6 grams, the position of the limiting member 130 can be slightly adjusted towards the dispensing head 120; conversely, if it is greater than 6 grams, the position of the limiting member 130 can be slightly adjusted away from the dispensing head 120. By repeating this experiment, the limiting component 130 can be accurately adjusted to the volume mark corresponding to the 6-gram fructose solution.

[0086] In some embodiments, the pressing lever 110 may only have a weight scale and no volume scale. If it is necessary to adjust the dispensing volume to the desired volume, a standard measuring cup can be used to adjust the position of the limiting member 130. For example, if the user wants to adjust the dispensing volume of liquid ingredients (such as fructose liquid) to 7cc, since the density of fructose liquid is greater than that of water, 7cc of fructose corresponds to a weight greater than 7 grams, the limiting member 130 can be adjusted to approximately the 5-gram scale mark first, and then the adjustable dispensing head can be pressed to dispense the liquid. The fructose liquid output from the adjustable dispensing head can then be measured with a standard measuring cup to determine if the volume is 7cc. If it is less than 7cc, the position of the limiting member 130 can be slightly adjusted towards the dispensing head 120; conversely, if it is greater than 7cc, the position of the limiting member 130 can be slightly adjusted away from the dispensing head 120. By repeating this experiment, the limiting component 130 can be accurately adjusted to the weight scale line corresponding to the 7CC fructose solution.

[0087] In this embodiment, water can also be used as a medium to find the position of the limiting member 130 corresponding to the expected capacity. This is because 1 gram of water = 1 cc of water = 1 ml of water. If it is necessary to find the scale line corresponding to a 7 cc capacity, the fructose liquid can be replaced with water, and the limiting member 130 can be adjusted to the weight scale line corresponding to the 7 cc capacity using a similar method. Specifically: first, adjust the limiting member 130 to approximately the 7-gram scale line, then press the adjustable dispensing head to dispense water. Then, use an electronic balance or other weighing device to weigh the water output from the adjustable dispensing head to determine if the mass is 7 grams. If it is less than 7 grams, finely adjust the position of the limiting member 130 towards the side closer to the dispensing head 120; conversely, if it is greater than 7 grams, finely adjust the position of the limiting member 130 away from the dispensing head 120. By repeating this process, the limiting member 130 can be accurately adjusted to the weight scale line corresponding to 7 grams of water. Since 1 gram of water = 1 cc of water = 1 ml of water, 7 grams of water corresponds to 7 cc of water. Therefore, the position of the limiting component 130 at this point is where the pressing head can squeeze out a capacity of 7 cc. Thus, using water as a medium allows for more convenient and accurate adjustment of the limiting component 130 to the weight scale line corresponding to the expected capacity.

[0088] See Figure 6 and Figure 7 In one embodiment, the adjustable discharge pressing head provided by this utility model further includes a fastening ring 150. The inner ring surface of the fastening ring 150 has a third thread; the outer surface of the latch arm 170 has a fourth thread for mating and screwing with the third thread. When the fastening member 140 is in the locked position, the latch arm 160 is engaged with the protrusion 170, and the fastening ring 150 presses the latch arm 160 against the pressing rod 110 so that the limiting member 130, the fastening member 140 and the fastening ring 150 are tightly engaged on the pressing rod 110. In this embodiment, the limiting member 130 still includes a first outer diameter section 130a and a second outer diameter section 130b, the outer diameter of the first outer diameter section 130a is larger than the outer diameter of the second outer diameter section 130b, and the protrusion 170 is located on the outer periphery of the second outer diameter section 130b. However, this does not mean that only the limiting member can have a first outer diameter section, a second outer diameter section, and a protrusion, while the fastening member can only provide a latching arm; conversely, the fastening member may have a first outer diameter section, a second outer diameter section, and a protrusion, while the limiting member has a latching arm that mates with it. A raised ridge 151 is provided on the outer surface of the fastening ring 150. The raised ridge 151 extends along the length of the pressing rod 110 to facilitate tightening the fastening ring 150.

[0089] In this embodiment, the inner wall of the buckle arm 160 has a protrusion 161 that avoids the recessed portion that engages with the protrusion 170, so that it can fit against the surrounding area of ​​the protrusion. See [reference needed] Figure 7 .

[0090] In one embodiment, the buckle arm of the press head with adjustable discharge volume is ring-shaped and has a certain elasticity, which can expand the inner diameter during the buckling process and then return to the original inner diameter size.

[0091] In one embodiment, the protrusions of the press head with adjustable output are strip-shaped and multiple, and the multiple protrusions are arranged sequentially at intervals along the circumference of the press rod, with the length direction of the protrusions along the length direction of the press rod.

[0092] In one embodiment, one of the limiting member and the fastening member is provided with a protrusion 170, and the other is provided with a fastening arm capable of engaging with the protrusion 170. A recess 171 is formed between the protrusion 170 and the front end face of the first outer diameter segment; the recess 171 is formed by the protrusion 170 surrounding the outer periphery of the second outer diameter segment; the radial length of the recess 171 is used to characterize the outer diameter of the second outer diameter segment. This embodiment differs from... Figure 8 The protrusion in the middle has indentations 171 on both sides, but the side closer to the first outer diameter section has a ring of indentations 171. Figure 9 and Figure 10 When the protrusion 170 is located at the limiting member 130, it can be engaged with the buckle arm 160 as follows. Figure 14 As shown.

[0093] In one embodiment, the latch arm 160 extends laterally with m latch arm heads 162, where m ≥ 2, for example, m = 4; the latch arm heads 162 are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess 171 to lock the limiting member and the fastening member together. Figure 8 , Figure 11 and Figure 12 ).

[0094] In one embodiment, the buckle arm head can also be engaged from the outside, such as... Figure 9 The recess 171 shown causes the limiting member and the fastening member to lock together.

[0095] In one embodiment, see Figure 13 The limiting member has a first outer diameter section 130a and a second outer diameter section 130b, and the fastening member has a third outer diameter section 140a and a fourth outer diameter section 140b. The outer diameter of the first outer diameter section 130a is larger than the outer diameter of the second outer diameter section 130b, and the inner diameter of the first outer diameter section 130a is smaller than the inner diameter of the second outer diameter section 130b. The protrusion 170 is located on the inner wall of the second outer diameter section 130b. The outer diameter of the third outer diameter section 140a is larger than the outer diameter of the fourth outer diameter section 140b. The buckle arm 160 extends out of the front end face of the third outer diameter section 140a but does not exceed the front end face of the fourth outer diameter section 140b. When the fastening member is in the locked position, the front end face of the first outer diameter section 130a abuts against the front end face of the fourth outer diameter section 140b.

[0096] In one embodiment, see Figure 15The fastening element has a first outer diameter section and a second outer diameter section, and the limiting element has a third outer diameter section and a fourth outer diameter section; the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section, and the inner diameter of the first outer diameter section is smaller than the inner diameter of the second outer diameter section, with the protrusion located on the inner wall of the second outer diameter section; the outer diameter of the third outer diameter section is larger than the outer diameter of the fourth outer diameter section, and the buckle arm extends beyond the front end face of the third outer diameter section but does not exceed the front end face of the fourth outer diameter section; wherein, when the fastening element is in the locked position, the front end face of the first outer diameter section abuts against the front end face of the fourth outer diameter section.

[0097] In one embodiment, see Figure 16 , Figure 17 , Figure 18 and Figure 19 A recess 171 is formed between the protrusion 170 and the front end face of the first outer diameter section; the recess 171 is formed by the protrusion 170 surrounding the inner wall of the second outer diameter section; the radial length of the protrusion 170 is used to characterize the inner diameter of the second outer diameter section. The latch arm 160 extends laterally with m latch arm heads 162, where m ≥ 2, for example, m = 4. The latch arm heads 162 are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess 171 to lock the limiting member and the fastening member.

[0098] In one embodiment, see Figure 20 The limiting member has a first outer diameter section 130a, a second outer diameter section 130b, and a protruding part 172; the outer diameter of the first outer diameter section 130a is larger than the outer diameter of the second outer diameter section 130b; the protruding part 172 extends beyond the front end face of the first outer diameter section 130a but does not exceed the front end face of the second outer diameter section 130b, and there are p such protruding parts, where p ≥ 2, for example, p = 4, and they are arranged sequentially at intervals along the circumference of the pressing rod. The protrusion 170 is located on the outer surface of the protruding part 172; the buckle arm extends beyond the front end face of the fastening member; when the fastening member is in the locked position, the front end face of the second outer diameter section 130b abuts against the front end face of the fastening member.

[0099] One embodiment of this utility model also provides a container, which includes: a container body, a cover 200, a pump assembly 300, and a press head with adjustable discharge volume according to any of the above embodiments. The cover 200 is connected to the container opening of the container body, and the pump assembly 300 is located inside the container body and connected to the cover 200 and the press head with adjustable discharge volume.

[0100] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A pressing head with adjustable discharge volume, characterized in that, include: A pressing rod is provided with a discharge head at one end of the pressing rod, and the outer surface of the pressing rod has a Don thread, which includes a left-hand thread and a right-hand thread; A limiting member having a first thread and being connected to the Tang thread via the first thread; A fastening element having a second thread and being connected to the Tang thread via the second thread, and located on the side of the limiting element closer to the discharge head; the first thread and the second thread have opposite directions of rotation; The fastening member has a locked position and a released position relative to the limiting member; when in the locked position, the fastening member is connected to the limiting member and can prevent the limiting member from rotating relative to the Tang thread; when in the released position, the fastening member is unlocked from the limiting member so that the limiting member can rotate relative to the Tang thread; when in the locked position, the fastening member is connected to the limiting member by fastening and / or direct abutment.

2. The adjustable discharge head as described in claim 1, characterized in that, In the limiting member and the fastening member, one is provided with a protrusion, and the other is provided with a buckle arm that can be fastened to the protrusion.

3. The adjustable discharge head as described in claim 2, characterized in that, The number of buckle arms is n, where n≥2, and they are arranged sequentially at intervals along the circumference of the pressing rod.

4. The adjustable discharge head as described in claim 2, characterized in that, The protrusion is arranged around the limiting member or the fastening member.

5. The adjustable discharge head as described in claim 2, characterized in that, The buckle arm is ring-shaped and has a certain degree of elasticity, which allows it to expand its inner diameter during the buckling process and then return to its original inner diameter size.

6. The adjustable discharge head as described in claim 2, characterized in that, The inner wall of the buckle arm has a protrusion that avoids the recessed portion that engages with the protrusion, so that it can fit against the surrounding area of ​​the protrusion.

7. The adjustable discharge head as described in claim 2, characterized in that, It also includes a fastening ring, the inner ring surface of which has a third thread; the outer surface of the buckle arm has a fourth thread for mating and screwing with the third thread; when the fastening member is in the locked position, the buckle arm is fastened to the protrusion, and the fastening ring is threadedly connected to the buckle arm.

8. The adjustable discharge head as described in claim 2, characterized in that, The protrusion is located on the outer periphery of one of the limiting member and the fastening member, and the buckle arm extends out of the front end face of the other of the limiting member and the fastening member; wherein, when the fastening member is in the locked position, the front end face of the limiting member abuts against the front end face of the fastening member.

9. The adjustable discharge head as described in claim 2, characterized in that, Of the limiting member and the fastening member, one has a first outer diameter section and a second outer diameter section, the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section, and the protrusion is located on the outer periphery of the second outer diameter section; the buckle arm extends out of the front end face of the other of the limiting member and the fastening member; When the fastening member is in the locked position, the front end face of the second outer diameter section abuts against the front end face of either the limiting member or the fastening member.

10. The adjustable discharge head as described in claim 9, characterized in that, A recess is formed between the protrusion and the front end face of the first outer diameter segment; the recess is formed by the protrusion surrounding the outer periphery of the second outer diameter segment; the radial length of the recess is used to characterize the outer diameter size of the second outer diameter segment.

11. The adjustable discharge head as described in claim 10, characterized in that, The buckle arm extends laterally into m buckle arm heads, where m ≥ 2; the buckle arm heads are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess to lock the limiting member and the fastening member.

12. The adjustable discharge head as described in claim 2, characterized in that, Of the limiting member and the fastening member, one has a first outer diameter section and a second outer diameter section, and the other has a third outer diameter section and a fourth outer diameter section; the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section, and the inner diameter of the first outer diameter section is smaller than the inner diameter of the second outer diameter section; the protrusion is located on the inner wall of the second outer diameter section; the outer diameter of the third outer diameter section is larger than the outer diameter of the fourth outer diameter section, and the buckle arm extends beyond the front end face of the third outer diameter section but does not exceed the front end face of the fourth outer diameter section; When the fastening member is in the locked position, the front end face of the first outer diameter section abuts against the front end face of the fourth outer diameter section.

13. The adjustable discharge head as described in claim 12, characterized in that, The protrusion forms a recess with the front end face of the first outer diameter segment; the recess is formed by the protrusion surrounding the inner wall of the second outer diameter segment; the radial length of the protrusion is used to characterize the inner diameter of the second outer diameter segment.

14. The adjustable discharge head as described in claim 13, characterized in that, The buckle arm extends laterally into m buckle arm heads, where m ≥ 2; the buckle arm heads are arranged sequentially at intervals along the circumference of the pressing rod and can be engaged in the recess to lock the limiting member and the fastening member.

15. The adjustable discharge head as described in claim 2, characterized in that, Of the limiting member and the fastening member, one has a first outer diameter section, a second outer diameter section, and a protruding part; the outer diameter of the first outer diameter section is larger than the outer diameter of the second outer diameter section; the protruding part extends beyond the front end face of the first outer diameter section but does not exceed the front end face of the second outer diameter section, and the number of protruding parts is p, p≥2, and they are arranged sequentially at intervals along the circumference of the pressing rod; the protrusion is located on the outer surface of the protruding part; the buckle arm extends beyond the front end face of the other of the limiting member and the fastening member; When the fastening member is in the locked position, the front end face of the second outer diameter section abuts against the front end face of either the limiting member or the fastening member.

16. The adjustable discharge head as described in any one of claims 2 to 15, characterized in that, The pressing rod is provided with a discharge volume scale line, which includes a capacity scale line and / or a weight scale line; when the fastening member is in the locked position, the fastening arm is fastened to the protrusion.

17. A container, characterized in that, include: The container body, the cover, the pump assembly, and the adjustable discharge head according to any one of claims 1 to 16; the cover is connected to the container opening of the container body, the pump assembly is located inside the container body, and is connected to the cover and the adjustable discharge head.

Images