Detachable pump head structure

Abstract

The utility model discloses a detachable pump head structure. The detachable pump head structure comprises a cylinder body, a cap nut; the top end of the cylinder cover extends downwards to be provided with a first annular plate, a first clamping groove is formed by the first annular plate and the outer wall of the cylinder cover, the top end of the cylinder body is inserted into the first clamping groove, the cylinder cover is provided with a first containing through hole, and the bottom end of the first containing through hole of the cylinder cover extends upwards to be provided with a second annular plate; the spring is arranged outside the second annular plate in a sleeving manner; a first circulation hole is formed in the cylinder rod in the length direction of the cylinder rod; the piston is fixedly connected with the bottom end of the cylinder rod; the pressing head is provided with an extension rod located in the first circulation hole, the extension rod is provided with a second circulation hole, and the pressing head is further provided with a fourth annular plate located in the first containing through hole of the cylinder cover; and the fourth annular plate is detachably connected with the cylinder cover. By means of the mode, the pump head structure is detachably arranged, a product is convenient to assemble, the fourth annular plate is connected with the cylinder cover in a threaded mode, and the product is not prone to rotating when locked.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump head technical field, concretely is a detachable pump head structure. BACKGROUND

[0002] The emulsion bottle is usually used with the emulsion pump, and the emulsion in the emulsion bottle can flow out by pressing the emulsion pump, which is convenient for daily use. Generally, the emulsion pump relies on the extrusion of the pressing head to output the emulsion in the solution bottle through the cylinder rod (i.e. the main column), however, the pressing head and the cylinder rod of the emulsion pump on the market are connected integrally, which is relatively cumbersome during product assembly, and the product is easy to turn when locked. CONTENT OF THE UTILITY MODEL

[0003] (I) Technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a detachable pump head structure, which can solve the above technical problems.

[0005] (II) Technical scheme

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: A detachable pump head structure, characterized by comprising: cylinder body, be equipped with be used for accommodating emulsion's accommodating cavity, wherein the outside of the top of cylinder body is equipped with the circular ring of carding ring; Screw cover, it is around setting in the outside of the carding ring, wherein the inner wall of screw cover is equipped with first outer thread for being connected with the bottle body thread of emulsion bottle; Cylinder cover, set in the upper end of cylinder body and be in the accommodating cavity of cylinder body, be used for sealing the accommodating cavity of cylinder body, wherein the top of cylinder cover is equipped with the circular ring of first annular plate and extends downward, first annular plate and the outer wall of cylinder cover form first clamping groove, the top of cylinder body is inserted in first clamping groove, and cylinder cover is equipped with first accommodating through -hole corresponding with the accommodating cavity, and the bottom of first accommodating through -hole of cylinder cover extends upward and is equipped with the circular ring of second annular plate; Spring, accommodate in first accommodating through -hole and cover second annular plate outside; Cylinder rod, its bottom passes through first accommodating through -hole and is accommodated in the accommodating cavity, its top is accommodated in first accommodating through -hole, wherein the first flow -through hole along the length direction of cylinder rod is equipped with in cylinder rod, the outer wall of the top of cylinder rod extends downward and is equipped with the circular ring of third annular plate, the inner wall of third annular plate and the outer wall of cylinder rod form second clamping groove, and spring is in second clamping groove; Piston, accommodate in the accommodating cavity, with the bottom fixed connection of cylinder rod; Push head, set in the top of cylinder body, wherein the push head is equipped with the extension rod in the first flow -through hole of cylinder rod, the second flow -through hole for outputting solution is equipped with with first flow -through hole and is used for outputting solution, the push head is also around set up in the fourth annular plate in the extension rod outside and in the first accommodating through -hole of cylinder cover, wherein the fourth annular plate and cylinder cover are detachably connected.

[0007] Further, the extension rod is cylindrical, wherein the first flow -through hole of cylinder rod has a hole diameter equal to an outer diameter of the extension rod.

[0008] Further, the outer wall of the fourth annular plate is provided with a first clamping mechanism, and the first accommodating through -hole of the cylinder cover is provided with a second clamping mechanism for clamping connection with the first clamping mechanism.

[0009] Further, the first clamping mechanism includes a second outer thread and a third outer thread arranged around the outer wall of the fourth annular plate, and the second clamping mechanism includes an inner thread arranged around the top of the first accommodating through -hole of the cylinder cover and threadedly connected with the second outer thread and the third outer thread.

[0010] Further, the starting points of the second external thread and the third external thread are arranged on both sides of the outer wall of the fourth annular plate respectively, and the number of the internal thread is two, and the starting points of the two internal threads are arranged on both sides of the top end of the first receiving through hole of the cylinder cover respectively.

[0011] Further, the top end of the first receiving through hole of the cylinder cover is provided with a receiving groove with a hole diameter larger than that of the first receiving through hole, and the internal thread is arranged on the inner wall of the receiving groove, wherein the fourth annular plate is received in the receiving groove and clamped outside the first receiving through hole.

[0012] Further, the head is further provided with a fifth annular plate outside the fourth annular plate, wherein the outer diameter of the fifth annular plate is larger than the hole diameter of the receiving groove, and the outer diameter of the fifth annular plate is smaller than the outer diameter of the first annular plate, so that the fifth annular plate is clamped on the top surface of the cylinder cover.

[0013] Further, the head is further provided with an output part, and the output part is provided with a third flow-through hole in communication with the second flow-through hole of the extension rod.

[0014] Further, the head, the extension rod, the fourth annular plate, the fifth annular plate and the output part are integrally formed.

[0015] Further, when the spring is in a normal state, the bottom end of the third annular plate is in the first receiving through hole of the cylinder cover and is not at the bottom end of the first receiving through hole.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a detachable pump head knot has the following beneficial effects: the utility model discloses a detachable pump head structure, including cylinder, screw cover, cylinder cover, spring, cylinder rod, piston and head, wherein the head is arranged at the top end of the cylinder, the head is provided with the extension rod in the first flow-through hole of the cylinder rod, the extension rod is provided with the second flow-through hole in communication with the first flow-through hole and is used for the output solution, and the head is further provided with the fourth annular plate in the extension rod and in the first receiving through hole of the cylinder cover, and the fourth annular plate and the cylinder cover are detachably connected. Through the above-mentioned mode, the utility model discloses a pump head structure detachable setting, and when assembling the product, it is convenient, and the fourth annular plate and the cylinder cover are connected through the threaded mode, and the product is not easy to turn when locking. ACCURACY OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the detachable pump head structure of the utility model;

[0019] Figure 2 It is Figure 1A first structure diagram of a pressing head of a middle pump head structure;

[0020] Figure 3 For Figure 1 A second structure diagram of a pressing head of a middle pump head structure;

[0021] Figure 4 For Figure 1 A first partial structure diagram of a middle pump head structure;

[0022] Figure 5 For Figure 1 A partial cutaway structure diagram of a middle pump head structure;

[0023] Figure 6 For Figure 1 A cutaway structure diagram of a cylinder cover of a middle pump head structure;

[0024] Figure 7 For Figure 1 A cutaway structure diagram of a cylinder rod of a middle pump head structure. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] As Figures 1-7 shown, the present application provides a detachable pump head structure, which comprises a cylinder body 10, a screw cover 11, a cylinder cover 12, a spring 13, a cylinder rod 14, a piston and a pressing head 16.

[0027] The cylinder body 10 is provided with a receiving cavity 101 for receiving a lotion, wherein the outer side of the top end of the cylinder body 10 is provided with a clamping ring 102 in the form of a circular ring.

[0028] The screw cover 11 is arranged around the outside of the clamping ring 102, wherein the inner wall of the screw cover 11 is provided with a first external thread for threadedly connecting with the bottle body of a lotion bottle. It should be understood that the outer wall of the bottle mouth of the bottle body of the lotion bottle is provided with a bottle body internal thread for threadedly connecting with the first external thread.

[0029] The cylinder cover 12 is arranged at the upper end of the cylinder body 10 and is located in the receiving cavity 101 of the cylinder body 10, for sealing the receiving cavity 102 of the cylinder body 10, wherein the top end of the cylinder cover 12 extends downward and is provided with a first annular plate 121 in the form of a circular ring, and the first annular plate 121 is formed with a first clamping groove 122 with the outer wall of the cylinder cover 12.

[0030] Preferably, the top end of the cylinder body 10 is inserted into the first clamping groove 122.

[0031] In the embodiment, the cylinder cover 12 is provided with a first receiving through hole 123 corresponding to the receiving cavity 101, wherein the bottom end of the first receiving through hole 123 of the cylinder cover 12 extends upward and is provided with a second annular plate 124 in the form of a ring.

[0032] The spring 13 is received in the first receiving through hole 123 and is sleeved outside the second annular plate 124.

[0033] The bottom end of the cylinder rod 14 passes through the first receiving through hole 123 and is received in the receiving cavity 101, and the top end of the cylinder rod 14 is received in the first receiving through hole 123, wherein the cylinder rod 14 is provided with a first flow-through hole 141 along the length direction thereof, the outer wall of the top end of the cylinder rod 14 extends downward and is provided with a third annular plate 142 in the form of a ring, the inner wall of the third annular plate 142 and the outer wall of the cylinder rod 14 form a second clamping groove 143, and the spring 13 is located in the second clamping groove 143.

[0034] That is, the bottom end of the spring 13 is arranged outside the second annular plate 124, and the top end of the spring 13 is supported in the second clamping groove 143. It should be understood that the spring 13 is used for storing energy, when the cylinder rod 14 is pressed to descend, the cylinder cover 12 is arranged at the top end of the cylinder body 10 and does not move, at this time, the cylinder rod 14 will press the spring 13 to compress, and the spring 13 stores energy, when the cylinder rod 14 is not pressed, the spring 13 will automatically push the cylinder rod 14 to rise and reset.

[0035] Preferably, the length of the spring 13 in the normal state is longer than the depth of the second clamping groove 143.

[0036] Preferably, when the spring 13 is in the normal state, the bottom end of the third annular plate 142 is located in the first receiving through hole 123 of the cylinder cover 12 and is not located at the bottom end of the first receiving through hole 123.

[0037] The piston 15 is received in the receiving cavity 101, wherein the piston 15 is fixedly connected with the bottom end of the cylinder rod 14.

[0038] The pressing head 16 is arranged at the top end of the cylinder body 14, wherein the pressing head 16 is provided with an extension rod 161 located in the first flow-through hole 141 of the cylinder rod 14, the extension rod 161 is provided with a second flow-through hole 1611 in communication with the first flow-through hole 141 and used for outputting the solution, and the pressing head 16 is further provided with a fourth annular plate 162 located outside the extension rod 161 and in the first receiving through hole 123 of the cylinder cover 12.

[0039] Preferably, the fourth annular plate 162 is detachably connected with the cylinder cover 12.

[0040] Preferably, the extension rod 161 is cylindrical, wherein the hole diameter of the first flow-through hole 141 of the cylinder rod 14 is equal to the outer diameter of the extension rod 161.

[0041] In the present embodiment, the outer wall of the fourth annular plate 162 is provided with a first clamping mechanism, and the first receiving through hole 123 of the cylinder cover 12 is provided with a second clamping mechanism which is clamped and connected with the first clamping mechanism.

[0042] Specifically, the first clamping mechanism includes a second external thread 1621 and a third external thread 1622 which are arranged around the outer wall of the fourth annular plate 162, and the second clamping mechanism includes an internal thread 1231 which is arranged around the top end of the first receiving through hole 123 of the cylinder cover 12 and is threadedly connected with the second external thread 1621 and the third external thread 1622.

[0043] Preferably, the starting points of the second external thread 1621 and the third external thread 1622 are respectively arranged on both sides of the outer wall of the fourth annular plate 162, and the number of the internal thread 1231 is also two, and the starting points of the two internal threads 1231 are respectively arranged on both sides of the top end of the first receiving through hole 123 of the cylinder cover 12. It should be understood that the second external thread 1621 is arranged between the pitches of the third external thread 1622, and the third external thread 1622 is arranged between the pitches of the second external thread 1621.

[0044] It should be understood that since the fourth annular plate 162 is connected with the cylinder cover 12 by threading, when the fourth annular plate 162 is tightened to the end of the internal thread, it cannot be tightened any more, so that the product is not easy to turn during locking (such as carrying or transporting).

[0045] Further, the top end of the first receiving through hole 123 of the cylinder cover 12 is provided with a receiving groove 125 which has a hole diameter larger than that of the first receiving through hole 123, and the internal thread 1231 is arranged on the inner wall of the receiving groove 125, wherein the fourth annular plate 162 is received in the receiving groove 125 and clamped outside the first receiving through hole 123.

[0046] In the present embodiment, the pressing head 16 is further provided with a fifth annular plate 163 which is arranged around the outside of the fourth annular plate 162, wherein the outer diameter of the fifth annular plate 163 is larger than the hole diameter of the receiving groove 125, and the outer diameter of the fifth annular plate 163 is smaller than the outer diameter of the first annular plate 121, so that the fifth annular plate 163 is clamped on the top surface of the cylinder cover 12.

[0047] Further, the pressing head 16 is extended with an output portion 164, and the output portion 164 is provided with a third flow-through hole 1641 which communicates with the second flow-through hole 1611 of the extension rod 161.

[0048] Preferably, the pressing head 16, the extension rod 161, the fourth annular plate 162, the fifth annular plate 163 and the output portion 164 are integrally formed.

[0049] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0050] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A detachable pump head structure, characterized in that, include: The cylinder body is provided with a receiving cavity for containing emulsion, wherein the outer side of the top of the cylinder body is provided with a ring-shaped retaining ring; A screw cap is disposed around the retaining ring, wherein the inner wall of the screw cap is provided with a first external thread for threaded connection with the body of the emulsion bottle; A cylinder head is disposed at the upper end of the cylinder body and located within the receiving cavity of the cylinder body, for sealing the receiving cavity of the cylinder body. The top end of the cylinder head extends downwardly with a first annular plate in the shape of a ring. The first annular plate and the outer wall of the cylinder head form a first groove. The top end of the cylinder body is inserted into the first groove. The cylinder head is provided with a first receiving through hole corresponding to the receiving cavity. The bottom end of the first receiving through hole of the cylinder head extends upward with a second annular plate in the shape of a ring. The spring is housed within the first receiving through hole and sleeved outside the second annular plate; A cylinder rod, the bottom end of which passes through the first receiving through hole and is received in the receiving cavity, and the top end of which is received in the first receiving through hole, wherein a first flow hole is provided in the cylinder rod along its length direction, and a third annular plate in the shape of a ring extends downward from the outer wall of the top end of the cylinder rod, and a second groove is formed between the inner wall of the third annular plate and the outer wall of the cylinder rod, and the spring is located in the second groove. The piston is housed within the receiving cavity and is fixedly connected to the bottom end of the cylinder rod; A press head is disposed at the top of the cylinder body, wherein the press head is provided with an extension rod located in a first flow hole of the cylinder rod, the extension rod is provided with a second flow hole communicating with the first flow hole and for outputting solution, and the press head is also surrounded by a fourth annular plate located outside the extension rod and in a first receiving through hole of the cylinder cover; The fourth annular plate is detachably connected to the cylinder head.

2. The detachable pump head structure according to claim 1, characterized in that, The extension rod is cylindrical, and the diameter of the first flow hole of the cylinder rod is equal to the outer diameter of the extension rod.

3. The detachable pump head structure according to claim 1, characterized in that, The outer wall of the fourth annular plate is provided with a first snap-fit ​​mechanism, and the first receiving through hole of the cylinder head is provided with a second snap-fit ​​mechanism that is snapped and connected to the first snap-fit ​​mechanism.

4. The detachable pump head structure according to claim 3, characterized in that, The first snap-fit ​​mechanism includes a second external thread and a third external thread surrounding the outer wall of the fourth annular plate, and the second snap-fit ​​mechanism includes an internal thread surrounding the top end of the first receiving through hole in the cylinder head and threadedly connected to the second external thread and the third external thread.

5. The detachable pump head structure according to claim 4, characterized in that, The starting points of the second external thread and the third external thread are respectively located on both sides of the outer wall of the fourth annular plate. There are also two internal threads, and the starting points of the two internal threads are respectively located on both sides of the top of the first receiving through hole of the cylinder head.

6. The detachable pump head structure according to claim 4, characterized in that, The top end of the first receiving through hole of the cylinder head is provided with a receiving groove with a diameter larger than that of the first receiving through hole, and the internal thread is provided on the inner wall of the receiving groove, wherein the fourth annular plate is received in the receiving groove and locked outside the first receiving through hole.

7. The detachable pump head structure according to claim 6, characterized in that, The press head is also surrounded by a fifth annular plate located outside the fourth annular plate, wherein the outer diameter of the fifth annular plate is larger than the aperture of the receiving groove, and the outer diameter of the fifth annular plate is smaller than the outer diameter of the first annular plate, so that the fifth annular plate is engaged on the top surface of the cylinder head.

8. The detachable pump head structure according to claim 7, characterized in that, The press head extends to provide an output section, and the output section has a third flow hole that communicates with the second flow hole of the extension rod.

9. The detachable pump head structure according to claim 8, characterized in that, The press head, the extension rod, the fourth annular plate, the fifth annular plate, and the output part are integrally formed.

10. The detachable pump head structure according to claim 1, characterized in that, When the spring is in its normal state, the bottom end of the third annular plate is located within the first receiving through hole of the cylinder head but not at the bottom end of the first receiving through hole.

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