Novel pressing head and container

Abstract

The utility model discloses a novel pressing head which comprises a pressing rod, one end of the pressing rod is provided with a discharging head, the outer surface of the pressing rod is provided with Down threads, and the Down threads comprise left-hand threads and right-hand threads. The limiting piece is provided with a first thread and is connected with the Down thread through the first thread; the locking piece is provided with a second thread, is connected with the Down thread through the second thread and is 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; the locking piece has a locking position and a releasing position relative to the limiting piece; one of the limiting piece and the locking piece is provided with a first magnet, and the other one is provided with a part which can be attracted by the first magnet; the locking piece is connected with the limiting piece through the magnetic attraction effect when the locking piece is located at the locking position. According to the novel 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] The utility model relates to a kind of pressing head and container, in particular to a kind of novel pressing head and container. BACKGROUND

[0002] When preparing drinks, milk tea shops, coffee shops and the like usually use a pressing head to squeeze ingredients such as syrup, fructose, fruit juice and the like from a container. Due to the drink formula, the industry usually needs to use a pressing head with a liquid discharge amount of 5CC, 8CC, 10CC, 15CC, 20CC, 25CC, 30CC and the like. Generally, the pressing head cannot adjust the liquid discharge amount, resulting in the need to prepare more types of pressing heads; generally, the pressing head uses CC or ML as the unit of measurement, and there is no way to use grams as the unit of measurement. Limited by these factors, the current pressing head cannot expand the diversity of finished drinks or the width of drink research and development.

[0003] In some related technical solutions, a pressing head capable of adjusting the liquid discharge amount appears. For example, patent CN115973589A discloses a pump head capable of adjusting the pump-out amount and self-locking without liquid leakage, wherein the inner tooth cover and the outer tooth cover are connected through threads, and the pump-out amount is adjusted by rotating the outer tooth cover. Specifically, a guide rod is arranged on the upper surface of the inner tooth cover, and a scale line is arranged on the guide rod. When the outer tooth cover is rotated to the bottom end along the outer thread on the inner tooth cover, the top surface of the outer tooth cover is flush with the scale line at the bottom end of the guide rod (the maximum liquid discharge amount scale line). When the outer tooth cover is rotated to the top end, the top surface of the outer tooth cover is in contact with the top end of the guide rod and the bottom of the pressing head, at which time it is in a self-locking state. However, when the pressing head is pressed, the relative position of the outer tooth cover may change due to vibration / friction and the like, thereby changing the length between the top surface of the outer tooth cover and the bottom of the pressing head, causing the liquid discharge amount to change and resulting in poor consistency of the accuracy of the pressing head. SUMMARY

[0004] In order to solve at least one problem existing in the prior art described above, the utility model provides a novel pressing head.

[0005] In some embodiments, the novel pressing head comprises:

[0006] a pressing rod, one end of the pressing rod is provided with a discharge head, and the outer surface of the pressing rod has a Tang screw thread, the Tang screw thread comprising a left-handed thread and a right-handed thread;

[0007] a limiting piece, the limiting piece having a first thread and being connected with the Tang screw thread through the first thread;

[0008] a locking piece, the locking piece having a second thread and being connected with the Tang screw thread through the second thread, and being located on the side of the limiting piece close to the discharge head; the rotation directions of the first thread and the second thread are opposite (i.e., one is left-handed and the other is right-handed);

[0009] The locking member has a locking position and a release position relative to the limiting member; when the locking member is in the locking position, it is connected with the limiting member and can prevent the limiting member from rotating relative to the thread; when the locking member is in the release position, it is unlocked with the limiting member so that the limiting member can rotate relative to the thread.

[0010] One of the limiting member and the locking member is provided with a first magnet, and the other is provided with a part that can be attracted by the first magnet; when the locking member is in the locking position, it is connected with the limiting member through magnetic attraction.

[0011] When the pressing head is pressed to the limit position, the limiting member abuts against the cover of the container, thereby limiting the pressing stroke of the pressing head, i.e. limiting the discharging amount. The position of the limiting member on the pressing rod can be adjusted through thread rotation, and the pressing stroke of the pressing head, i.e. the discharging amount, can be adjusted by locking the limiting member through the locking member. The rotation directions of the first thread and the second thread are opposite and can be cooperatively connected with the thread, and the magnetic attraction between the limiting member and the locking member in the locking position can ensure that the limiting member is accurately locked on the pressing rod, ensuring the stability of the pressing stroke and accurately controlling the discharging amount. Because the limiting member and / or the locking member have a tendency to rotate relative to the pressing rod due to vibration / friction when the pressing head is pressed, the limiting member and the locking member may have a tendency to move towards each other or away from each other due to the opposite rotation directions of the threads (the first thread and the second thread). When the tendency to move towards each other occurs, the original direct abutting connection between the limiting member and the locking member will be more tightly connected, and the accuracy of the discharging amount will not be affected; when the tendency to move away from each other occurs, the magnetic attraction between the limiting member and the locking member can prevent the separation of the two, thereby ensuring the accuracy of the discharging amount. In addition, due to the opposite rotation directions of the threads of the limiting member and the locking member, and the fact that both threads are combined on the thread of the pressing rod, and the magnetic attraction between the limiting member and the locking member in the locking position, when one of them has a tendency to rotate to the left or to the right, the other will hold it, thereby resolving its tendency to rotate, and the forces cancel each other out, unless the limiting member and the locking member are separated beyond the range of magnetic attraction. In other words, due to the magnetic attraction that tightens the limiting member and the locking member, the limiting member can stay at any pressing stroke position of the pressing rod without loosening, thereby ensuring that any discharging amount within the maximum pressing stroke range of the new pressing head can be adjusted and controlled, and ensuring the accuracy and repeatability of the discharging amount, i.e. the accuracy of the discharging amount is consistently guaranteed. Assuming that the maximum pressing stroke of the new pressing head of an embodiment is 100CC, the discharging amount can be adjusted within the range of 0CC-100CC, and the accuracy consistency is high.

[0012] The novel pressing head provided by the utility model is not limited to the regulation and control of the liquid dosage, and can also be other forms of fluid or paste, jelly form or even foam material, that is, the dosage of any material that can be discharged through extrusion can be regulated and controlled, and the discharge accuracy of the liquid is better; and the utility model is not limited to the food industry such as milk tea shop and coffee shop, and can also be used in the industries of beauty, medicine, chemical industry and daily necessities.

[0013] In some embodiments, the first magnet is attached to one of the limiting member and the locking member, and the component that can be attracted by the first magnet is attached to the other.

[0014] In some embodiments, the first magnet is directly in contact with or not in direct contact with the component that can be attracted by the first magnet when the locking member is in the locking position.

[0015] In some embodiments, the first magnet is snap-fit or interference-fit on one of the limiting member and the locking member, and the component that can be attracted by the first magnet is snap-fit or interference-fit on the other; the snap-fit is achieved through a snap arm; and the interference-fit is achieved through deformation of the interference protrusion of the limiting member or the locking member.

[0016] In some embodiments, the first magnet is attached to one of the limiting member and the locking member, and the component that can be attracted by the first magnet is snap-fit or interference-fit on the other; the snap-fit is achieved through a snap arm; and the interference-fit is achieved through deformation of the interference protrusion of the limiting member or the locking member.

[0017] In some embodiments, the first magnet is snap-fit or interference-fit on one of the limiting member and the locking member, and the component that can be attracted by the first magnet is attached to the other; the snap-fit is achieved through a snap arm; and the interference-fit is achieved through deformation of the interference protrusion of the limiting member or the locking member.

[0018] In some embodiments, the first magnet is not in direct contact with the component that can be attracted by the first magnet when the locking member is in the locking position.

[0019] In some embodiments, the pressing rod is provided with a discharge amount scale line, and the discharge amount scale line comprises a capacity scale line and / or a weight scale line.

[0020] In some embodiments, the material of the first magnet is selected from one or more of ferrite magnet, neodymium iron boron magnet, samarium cobalt magnet and alnico magnet; and the material of the component that can be attracted by the first magnet is selected from one or more of iron, cobalt, nickel, steel, martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, silicon steel, permalloy, rubber magnet, injection molding magnet, magnetic coating, ferrite magnet, neodymium iron boron magnet, samarium cobalt magnet and alnico magnet.

[0021] In some embodiments, the pressing rod is hollow.

[0022] Furthermore, the utility model discloses a container, it includes: container body, lid, pump assembly and the novel press head of any one of the above implementation, the lid is connected with the container mouth of container body, and the pump assembly is located in the container body, and is connected with the lid and novel press head, the container provided by the utility model has the nature of liquid container, but is not limited to only used for the holding of liquid, can also be used for the holding of other modalities fluid or paste, jelly form even the holding of foam material, that is suitable for the holding of all materials that can be discharged by extrusion.

[0023] Beneficial effects have:

[0024] When the above-mentioned novel press head, container needs to adjust the size of the discharge amount, the locking piece is switched to the release position, the release limiting piece is released, so that the limiting piece can rotate relative to the thread of the pressing rod, so that the rotation displacement of the limiting piece along the length direction of the pressing rod can be adjusted. After adjusting in place, the locking piece is rotated to the limiting piece again, and is switched to the locking position, and the two form a whole through the magnetic attraction, so that when one of them has a tendency to rotate to the left or right, the other will be pulled, so that the locking piece can prevent the limiting piece from rotating relative to the thread of the pressing rod, so as to prevent the displacement of the limiting piece along the length direction of the pressing rod. In this way, when the press head is pressed, the limiting piece and / or the locking piece have a tendency to rotate relative to the pressing rod due to vibration / friction, etc. Therefore, the accuracy of the pressing stroke of the pressing rod can be guaranteed, and the accuracy consistency of the discharge amount can be guaranteed. As can be seen, the press head of the utility model can not only adjust the discharge amount, but also guarantee the accuracy consistency of the discharge amount.

[0025] The concept, specific structure and technical effects of the utility model will be further described below with reference to the drawings, so as to fully understand the purpose, features and effects of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor intensity.

[0027] Figure 1 It is the connection relationship structure diagram and sectional view of the novel press head of example 1 and the lid, pump assembly.

[0028] Figure 2 It is the local sectional view of the connection relationship of the novel press head of example 2 and the lid, pump assembly.

[0029] Figure 3 Fig. 4 is a partial sectional view of the connection relationship between the new pressing head and the cover and the pump assembly of Example 3.

[0030] Figure 4 Fig. 5 is a partial sectional view of the connection relationship between the new pressing head and the cover and the pump assembly of Example 4.

[0031] Figure 5 Fig. 6 is a partial sectional view of the connection relationship between the new pressing head and the cover and the pump assembly of Example 5.

[0032] Figure 6 Fig. 7 is a structural schematic view of the locking member of Example 5.

[0033] Figure 7 Fig. 8 is a partial sectional view of the connection relationship between the new pressing head and the cover and the pump assembly of Example 6.

[0034] Figure 8 Fig. 9 is a front view and a perspective view of the limiting member of Example 6.

[0035] Figure 9 Fig. 10 is a front view and a perspective view of the locking member of Example 7.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 1. First magnet

[0038] 2. Part attracted by the first magnet

[0039] 3. Space

[0040] 110. Pressing rod; 111. Left-hand thread; 112. Right-hand thread; 113. Discharge amount scale line

[0041] 120. Discharge head

[0042] 130. Limiting member; 131. Limiting member clamping arm; 132. Interference protrusion of the limiting member

[0043] 140. Locking member; 141. Locking member clamping arm; 142. Interference protrusion of the locking member; 143. Protrusion of the locking member clamping arm; 144. Bottom of the recess of the locking member

[0044] 200. Cover

[0045] 300. Pump assembly DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0047] The terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0048] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connection", "connection", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] If an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not indicate the only implementation.

[0050] The term "right-hand thread" used herein refers to a thread that is screwed in clockwise. "Left-hand thread" refers to a thread that is screwed in counterclockwise.

[0051] Embodiment 1

[0052] Figure 1The new pressing head of the embodiment is shown, and its connection relationship with the cover 200 and the pump assembly 300, wherein the left drawing is a structural schematic diagram, and the right drawing is a sectional view. The container comprises a container body, a cover 200, a pump assembly 300 and a new pressing head. The cover 200 is connected with the container port of the container body, and the pump assembly 300 is located in the container body and connected with the cover 200 and the new pressing head.

[0053] The new pressing head comprises a pressing rod 110, one end of the pressing rod 110 is provided with a discharging head 120, the outer surface of the pressing rod 110 has a left-handed thread 111 and a right-handed thread 112; a limiting piece 130 having a first thread and connected with the left-handed thread 111 and the right-handed thread 112 through the first thread; a locking piece 140 having a second thread and connected with the left-handed thread 111 and the right-handed thread 112 through the second thread, and located at the side of the limiting piece 130 close to the discharging head 120; the rotation directions of the first thread and the second thread are opposite (i.e. one is left-handed, and the other is right-handed). In the embodiment, the first thread is the left-handed thread 111, and the second thread is the right-handed thread 112.

[0054] The locking piece 140 has a locking position and a release position relative to the limiting piece 130; when the locking piece 140 is at the locking position, the locking piece 140 is connected with the limiting piece 130 and can prevent the limiting piece 130 from rotating relative to the left-handed thread 111 and the right-handed thread 112; when the locking piece 140 is at the release position, the locking piece 140 is unlocked with the limiting piece 130 to enable the limiting piece 130 to rotate relative to the left-handed thread 111 and the right-handed thread 112. In the limiting piece 130 or the locking piece 140, one is provided with a first magnet, and the other is provided with a part capable of being attracted by the first magnet; when the locking piece 140 is at the locking position, the locking piece 140 is connected with the limiting piece 130 through the magnetic attraction. In the embodiment, the first magnet and the part capable of being attracted by the first magnet can be located at any position of the limiting piece 130 or the locking piece 140, and one of the limiting piece 130 and the locking piece 140 can be taken as the first magnet, and the other can be taken as the part capable of being attracted by the first magnet, as long as the magnetic attraction of the locking piece 140 to the limiting piece 130 at the locking position can be achieved.

[0055] The skilled in the art can understand that the material of the first magnet and the component that can be attracted by the first magnet in the utility model respectively corresponds to any material in the prior art that satisfies the magnetic attraction between the first magnet and the component that can be attracted by the first magnet when the locking member is located at the locking position. The following materials may not exhaust all the materials in the prior art that satisfy the above conditions. In some embodiments, the material used for the first magnet is selected from one or more of ferrite magnet, neodymium iron boron magnet, samarium cobalt magnet and alnico magnet; the material used for the component that can be attracted by the first magnet is selected from one or more of iron, cobalt, nickel, steel, martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, silicon steel, permalloy, rubber magnet, injection molding magnet, magnetic coating, ferrite magnet, neodymium iron boron magnet, samarium cobalt magnet and alnico magnet. "Rubber magnet, injection molding magnet, magnetic coating" here means that magnetic powder is added to plastic for injection molding or a magnetic component is coated on the surface.

[0056] Embodiment 2

[0057] Figure 2 The novel pressing head of the embodiment is shown, as well as its connection relationship with the cover 200 and the pump assembly 300. The first magnet 1 of the embodiment is pasted on the locking member 140, and the component that can be attracted by the first magnet 2 is pasted on the limiting member 130. When the locking member 140 is at the locking position, the first magnet 1 and the component that can be attracted by the first magnet 2 are in direct contact. The rest is the same as embodiment 1.

[0058] Embodiment 3

[0059] Figure 3 The novel pressing head of the embodiment is shown, as well as its connection relationship with the cover 200 and the pump assembly 300, wherein the left drawing is a structural schematic diagram, and the right drawing is a sectional view. The first magnet 1 of the embodiment is buckled on the locking member 140, and the component that can be attracted by the first magnet 2 is buckled on the limiting member 130. The buckling is realized through the buckle arm. The buckle arm includes the locking member buckle arm 141 provided on the locking member 140 and the limiting member buckle arm 131 provided on the limiting member 130; the number thereof is ≥2, and they are arranged in sequence along the circumferential direction of the pressing rod 110; and they are components with buckling effect with a large radial supporting amplitude and a rebound force. The locking member 140 fixes the first magnet 1 into the groove of the locking member 140 through the locking member buckle arm 141; and the limiting member 130 fixes the component that can be attracted by the first magnet 2 into the groove of the limiting member 130 through the limiting member buckle arm 131. When the locking member 140 is at the locking position, the first magnet 1 and the component that can be attracted by the first magnet 2 are not in direct contact, and there is a spacing space 3 between them, which is generated by the protrusions of the locking member buckle arm 141 and the limiting member buckle arm 131, but they are within the magnetic attraction range. The rest is the same as embodiment 1.

[0060] Embodiment 4

[0061] Figure 4 The new pressing head of the embodiment is shown, as well as its connection relationship with the cover 200 and the pump assembly 300. The first magnet 1 of the embodiment is pasted on the limiting member 130, and the component 2 that can be attracted by the first magnet is pasted on the locking member 140. The rest is the same as embodiment 2.

[0062] Embodiment 5

[0063] Figure 5 The new pressing head of the embodiment is shown, as well as its connection relationship with the cover 200 and the pump assembly 300, wherein the left drawing is a structural schematic diagram, and the right drawing is a sectional view. The component 2 that can be attracted by the first magnet of the embodiment is buckled on the locking member 140, and the first magnet 1 is buckled on the limiting member 130. The buckling is realized through the buckle arm. The locking member 140 fixes the component 2 that can be attracted by the first magnet into the groove of the locking member 140 through the locking member buckle arm 141; the limiting member 130 fixes the first magnet 1 into the groove of the limiting member 130 through the limiting member buckle arm 131. The locking member buckle arm 141 is provided with a locking member buckle arm protrusion 143 (such as Figure 6 ), so as to clamp the component 2 that can be attracted by the first magnet to prevent it from falling off the groove of the locking member 140. Similarly, the limiting member buckle arm 131 is provided with a limiting member buckle arm protrusion, so as to clamp the first magnet 1 to prevent it from falling off the groove of the limiting member 130. When the locking member 140 is in the locking position, the first magnet 1 and the component 2 that can be attracted by the first magnet are not in direct contact, and there is a gap between them, which is the groove bottom of the locking member 144 and the groove bottom of the limiting member 130, but they are still within the magnetic attraction range. The rest is the same as embodiment 3.

[0064] Embodiment 6

[0065] Figure 7 The new pressing head of the embodiment is shown, as well as its connection relationship with the cover 200 and the pump assembly 300, wherein the left drawing is a structural schematic diagram, and the right drawing is a sectional view. The locking member 140 of the embodiment includes a first outer diameter section and a second outer diameter section connected with each other or integrally formed; the diameter of the first outer diameter section is greater than that of the second outer diameter section; the limiting member 130 includes a third outer diameter section and a fourth outer diameter section connected with each other or integrally formed; the diameter of the third outer diameter section is greater than that of the fourth outer diameter section.

[0066] The first magnet 1 is sleeved on the locking member 140 by interference fit. The interference fit is achieved by deformation of the interference protrusion 142 of the locking member sleeved inside. Specifically, the interference protrusion 142 of the locking member is arranged on the outer surface of the second outer diameter section, so that the diameter of the second outer diameter section is slightly increased. The interference protrusion 142 of the locking member has a certain elasticity and is deformed when the first magnet 1 is sleeved on the outer surface of the second outer diameter section, so as to realize the interference fit between the first magnet 1 and the locking member 140.

[0067] The component 2 that can be attracted by the first magnet is sleeved on the limiting member 130 by interference fit. The interference fit is achieved by deformation of the interference protrusion 132 of the limiting member sleeved inside. Specifically, the interference protrusion 132 of the limiting member is arranged on the outer surface of the fourth outer diameter section, so that the diameter of the fourth outer diameter section is slightly increased. The interference protrusion 132 of the limiting member has a certain elasticity and is deformed when the component 2 that can be attracted by the first magnet is sleeved on the outer surface of the fourth outer diameter section, so as to realize the interference fit between the component 2 that can be attracted by the first magnet and the limiting member 130.

[0068] Figure 8 The limiting member 130 of the embodiment is shown, wherein the left drawing is a front view and the right drawing is a perspective view. As shown in the drawings, Figure 8 the interference protrusions 132 of the limiting member are uniformly arranged around the outer surface of the fourth outer diameter section, so that the interference fit is more compact.

[0069] As shown in the drawings, Figure 7 the first magnet 1 and the component 2 that can be attracted by the first magnet are not in direct contact when the locking member 140 is in the locking position, but are spaced apart by the first outer diameter section and the third outer diameter section, but both are still within the magnetic attraction range. The rest is the same as in Embodiment 1.

[0070] Embodiment 7

[0071] Figure 9 The locking member 140 of the embodiment is shown, wherein the left drawing is a front view and the right drawing is a perspective view. In this embodiment, the interference protrusions 132 of the locking member are arranged in multiple sections and uniformly arranged on the outer surface of the second outer diameter section, so that the interference fit is balanced in the circumferential direction. The rest is the same as in Embodiment 6.

[0072] The utility model discloses an embodiment further provides a kind of container, it includes: container body, cover 200, pump assembly 300, and the novel pressing head of any one in above embodiment. Cover 200 is connected with the container mouth of container body, pump assembly 300 is located in container body and is connected with cover 200 and novel pressing head.

[0073] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as the scope of the description.

[0074] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it shall not be understood as the limitation of the patent scope. It shall be pointed out that, for the ordinary skilled in the art, under the premise of not departing from the present application concept, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A new type of pressing head, characterized by, The application relates to a pressing rod, which comprises: a pressing rod, one end of which is provided with a discharging head, and the outer surface of the pressing rod is provided with a tang screw thread, which comprises a left-hand thread and a right-hand thread; a limiting piece, which is provided with a first thread and is connected with the tang screw thread through the first thread; a locking piece, which is provided with a second thread and is connected with the tang screw thread through the second thread, and is located on the side of the limiting piece close to the discharging head; the rotation directions of the first thread and the second thread are opposite; the locking piece has a locking position and a releasing position relative to the limiting piece; when the locking piece is in the locking position, the locking piece is connected with the limiting piece and can prevent the limiting piece from rotating relative to the tang screw thread; when the locking piece is in the releasing position, the locking piece is unlocked with the limiting piece so that the limiting piece can rotate relative to the tang screw thread; one of the limiting piece and the locking piece is provided with a first magnet, and the other is provided with a component capable of being attracted by the first magnet; the locking piece is connected with the limiting piece through magnetic attraction when the locking piece is in the locking position.

2. The novel press head as claimed in claim 1, wherein, The first magnet is attached to one of the limiting piece and the locking piece, and the component capable of being attracted by the first magnet is attached to the other.

3. The novel press head as claimed in claim 2, wherein, The first magnet directly contacts or does not directly contact the component capable of being attracted by the first magnet when the locking piece is in the locking position.

4. The novel press head as claimed in claim 1, wherein, The first magnet is snap-fitted or interference-fitted on one of the limiting piece and the locking piece, and the component capable of being attracted by the first magnet is snap-fitted or interference-fitted on the other; the snap-fitting is realized through a snap arm; the interference-fitting is realized through the deformation of an interference protrusion of the limiting piece or the locking piece.

5. The novel press head as claimed in claim 1, wherein, The first magnet is attached to one of the limiting piece and the locking piece, and the component capable of being attracted by the first magnet is snap-fitted or interference-fitted on the other; the snap-fitting is realized through a snap arm; the interference-fitting is realized through the deformation of an interference protrusion of the limiting piece or the locking piece.

6. The novel press head as claimed in claim 1, wherein, The first magnet is snap-fitted or interference-fitted on one of the limiting piece and the locking piece, and the component capable of being attracted by the first magnet is attached to the other; the snap-fitting is realized through a snap arm; the interference-fitting is realized through the deformation of an interference protrusion of the limiting piece or the locking piece.

7. The novel press head according to any one of claims 4 to 6, characterized in that The first magnet does not directly contact the component capable of being attracted by the first magnet when the locking piece is in the locking position.

8. The novel press head according to any one of claims 1 to 6, characterized in that The pressing rod is provided with a discharging amount scale line, which comprises a capacity scale line and / or a weight scale line; the pressing rod is hollow.

9. The novel press head according to any one of claims 1 to 6, characterized in that The material of the first magnet is selected from one or more of ferrite magnets, neodymium-iron-boron magnets, samarium-cobalt magnets and alnico magnets; and the material of the component capable of being attracted by the first magnet is selected from one or more of iron, cobalt, nickel, steel, martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, silicon steel, permalloy, rubber magnet, injection molding magnet, magnetic coating, ferrite magnet, neodymium-iron-boron magnet, samarium-cobalt magnet and alnico magnet.

10. A container characterized by The application relates to a pressing rod, which comprises: The container body, the cover body, the pump assembly, and the novel pressing head of any one of claims 1-9; the cover body is connected with the container mouth of the container body, the pump assembly is located in the container body, and is connected with the cover body and the novel pressing head.

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