A compression pump

Abstract

The present invention relates to the field of press pumps, and in particular to a press pump. The press head, main column, pump body, spring, movable pump plug, auxiliary column, and connecting column are all made of plastic, which is environmentally friendly, safe, and easy to recycle. At the same time, the spring used is a plastic spring, and a plastic sphere is provided at the lower end of the pump body for liquid to enter. At the same time, the corrosion of the metal spring and the metal sphere and the contamination of the contents when metal springs and metal spheres are used are avoided. In the present invention, by rotating the press head, the threaded protrusion moves along the thread groove to the lower end of the thread groove and is assembled with the lower clamping device. That is, the press head can be internally locked, which is convenient for the transportation or display and sale of the product. While the press head is internally locked, the spring preload will not be increased, and the spring is in a state of relatively small compression force. In this way, the spring will not fail due to yield deformation caused by compression when not in use, thereby reducing additional fatigue of the spring.

Description

Technical Field

[0001] The invention relates to the field of pressing pumps, in particular to a pressing pump. Background Art

[0002] A traditional lotion pump is usually composed of a locking bottle cap, a pump chamber, a push head, a main column, a sub-column, a piston, a glass bead, a rebound device and a locking cap that fixes the main column, the sub-column and the piston to the pump chamber. The rebound device generally adopts a metal spring and is arranged in the material body cavity. When the lotion is pumped, it is immersed in the lotion. The metal spring is easy to corrode and contaminate the contents (lotion). Since traditional lotion pumps generally include components such as plastic, metal and glass, they need to be disassembled and classified for recycling when they are recycled, which is inconvenient.

[0003] At the same time, most of the existing press pumps are upper lock type press pumps. When they are not in use, such as during the transportation and display and sale of products, The head is high, occupies space and is easy to open Therefore, in the field of compression pumps, there is still a need for a compression pump with a further improved structure, which can solve the problem of Height issues when displaying and selling , spring force attenuation, emulsion pollution and environmentally friendly recycling issues. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a pressing pump, which can solve the problems of spring force attenuation, emulsion pollution and environmentally friendly recycling.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a pressing pump, including a pressing head, a main column, a pump body, a spring, a movable pump plug, a secondary column, and a connecting column, wherein the pressing head, the main column, the pump body, the spring, the movable pump plug, the secondary column, and the connecting column are all made of plastic; the connecting column is located in the pump body, the secondary column is arranged in the pump body and connected to the bottom of the connecting column, the upper end of the main column is equipped with the pressing head, the lower end of the main column extends into the pump body and is connected to the connecting column, and the main column is connected to the secondary column through the connecting column; the movable piston is sleeved on the outer side surface of the secondary column, and the outer side surface of the movable piston is movably connected to the inner side surface of the pump body; One end of the spring is located on the bottom surface of the secondary column, and the other end of the spring is located on the inner wall of the bottom of the pump body; a plastic ball is also provided inside the lower end of the pump body; the inner wall of the connecting column is provided with a threaded groove, an upper clamping device located above the threaded groove, and a lower clamping device located at the lower end of the threaded groove, and the outer wall of the main column is provided with a threaded protrusion matched with the threaded groove; wherein the threaded protrusion moves along the threaded groove to the upper end of the threaded groove and is matched with the upper clamping device located above the threaded groove, thereby putting the spring into a standby state; the threaded protrusion moves along the threaded groove to the lower end of the threaded groove and is matched with the lower clamping device, thereby putting the spring into a non-standby state.

[0006] Furthermore, a circle of first connecting bosses is vertically connected to the outer side surface of one end of the main column close to the push head, and a circle of plug-in blocks is sleeved on the outer side surface of the first connecting boss, wherein the inner side surface of the plug-in block, the surface of the first connecting boss and the outer side surface of the main column form a first plug-in slot; a connecting cylinder matched with the first plug-in slot is provided at the bottom of the push head, wherein the outer side wall of the connecting cylinder is provided with a circle of ratchet structure, and a plurality of ratchet structures are evenly distributed on the outer side surface of the plug-in block located in the first plug-in slot; wherein the connecting cylinder of the push head is plugged into the first plug-in slot, and the ratchet structure and the ratchet structure are meshed with each other.

[0007] Furthermore, a circle of first clamping bosses is disposed on the inner side wall of the connecting tube, a circle of first clamping grooves is provided on the outer side surface of the main column located in the first plug-in groove, and the first clamping bosses are clamped in the first clamping grooves.

[0008] Furthermore, the connecting column includes a second outer connecting column tube, a second inner connecting column tube, and a second connecting boss, wherein the second inner connecting column tube is arranged inside the second outer connecting column tube, and the two ends of the second connecting boss are respectively vertically connected to the outer side surface of the bottom of the second inner connecting column tube and the inner side wall of the bottom of the second outer connecting column tube; the threaded protrusions are arranged on the two outer sides of the lower end of the plug-in block, and the threaded grooves are opened on the inner wall of the second outer connecting column tube.

[0009] Furthermore, the inner wall of the second inner connecting column tube is provided with a circle of first locking buckle line, and the outer wall of the main column at one end close to the secondary column is provided with a circle of second locking buckle line, wherein the threaded protrusion moves along the thread groove to the lower end of the thread groove and is assembled with the lower locking device, and the first locking buckle line and the second locking buckle line are locked with each other.

[0010] Furthermore, a clamping point groove is provided on the surface of the threaded protrusion, and the lower clamping device is a first clamping point block corresponding to the clamping point groove. The threaded protrusion moves along the threaded groove to the lower end of the threaded groove, and the threaded protrusion is clamped and assembled with the corresponding first clamping point block through the clamping point groove.

[0011] Furthermore, the upper clamping device includes a second clamping point block located above the upper end of the thread groove, wherein the threaded protrusion extends out of the upper end of the thread groove along the thread groove, and the main column continues to rotate so that the clamping point groove on the surface of the threaded protrusion is clamped and assembled with the second clamping point block.

[0012] Furthermore, the inner wall of the connecting column is also provided with a clamping groove which is in the same plane as the second clamping point block and is located at the rear end of the second clamping point block. The main column is rotated to make the clamping groove of the threaded protrusion fit with the second clamping point block, and the bottom block of the spiral protrusion is clamped in the clamping groove.

[0013] Furthermore, it also includes a locking cover, the upper end of which is sleeved on the top of the pump body, and the lower end of which extends into the pump body; the locking cover surrounds the connecting column, wherein the side wall is provided with a through groove, and the outer side wall of the second external connecting column tube is provided with a limiting strip, and the limiting strip of the second external connecting column tube is driven to pass through the through groove by pressing the button head.

[0014] Furthermore, it also includes an outer locking cover, the bottom of which is provided with a circle of fitting grooves, wherein the top of the pump body and the locking cover are both arranged in the fitting grooves, and the outer locking cover surrounds the main column, wherein a waterproof ring is also provided at the junction of the outer locking cover and the main column.

[0015] The beneficial effects of the present invention are:

[0016] 1. The pump head, main column, pump body, spring, movable pump plug, auxiliary column and connecting column in the present invention are all made of plastic, which is environmentally friendly, safe and easy to recycle; at the same time, the spring used is a plastic spring, and a plastic ball is provided at the lower end of the pump body for liquid to enter; at the same time, the problem of corrosion of the metal spring and the metal ball and contamination of the contents when using metal springs and metal balls is avoided.

[0017] 2. In the present invention, the push head is rotated so that the threaded protrusion moves along the thread groove to the lower end of the thread groove and is assembled with the lower clamping device; that is, the push head can be locked internally, which is convenient for the transportation or display and sale of the product. While the push head is locked internally, the spring preload will not be increased, and the spring is in a state of small compression force. In this way, the spring will not fail due to yield deformation due to compression when not in use, thereby reducing additional fatigue of the spring.

[0018] 3. In the present invention, the push head needs to be rotated at a large angle to unlock it, so that the pump body enters a standby state, which can avoid the situation where the push head is easily opened due to external force collision during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the compression pump in a non-standby state.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the compression pump in the open state.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressing pump in the pressing state.

[0022] Figure 4 It is a schematic diagram of the structure of the head.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the head.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the main column.

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the main column.

[0026] Figure 8 This is a top view of the main column structure.

[0027] Fig. 9 It is a structural diagram of the connecting column.

[0028] Fig.10 It is a schematic diagram of the cross-sectional structure of the connecting column.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the spring.

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the outer locking cover.

[0031] Fig.13 It is a schematic diagram of the cross-sectional structure of the lock cover.

[0032] Description of the accompanying drawings: button head 1, connecting cylinder 101, ratchet structure 1011, first clamping boss 1012, outer locking cover 2, fitting groove 21, locking cover 3, through groove 31, gasket 4, main column 5, first connecting boss 51, plug-in block 52, first plug-in groove 53, first clamping groove 54, pawl structure 55, threaded protrusion 56, clamping point groove 561, second clamping buckle line 57, bottle cap 6, connecting column 7, second outer connecting column tube 71, second inner connecting column tube 72, first clamping buckle line 721, second connecting boss 73, limiting strip 74, threaded groove 75, first clamping point block 76, clamping groove 77, movable pump plug 8, secondary column 9, pump body 10, spring 11, top circular ring seat 1101, bottom circular ring seat 1102, spiral single line body 1103, reinforcing rib 1104, plastic ball 12, straw 13. DETAILED DESCRIPTION

[0033] See also Figure 1-13As shown, the present invention relates to a pressing pump, comprising a pressing head 1, a main column 5, a pump body 10, a spring 11, a movable pump plug 8, a secondary column 9, and a connecting column 7, wherein the pressing head 1, the main column 5, the pump body 10, the spring 11, the movable pump plug 8, the secondary column 9, and the connecting column 7 are all made of plastic; the connecting column 7 is located in the pump body 10, the secondary column 9 is arranged in the pump body 10 and connected to the bottom of the connecting column 7, the upper end of the main column 5 is equipped with the pressing head 1, the lower end of the main column 5 extends into the pump body 10 and is connected to the connecting column 7, and the main column 5 is connected to the secondary column 9 through the connecting column 7; the movable piston is sleeved on the outer side of the secondary column 9, and the outer side of the movable piston is movably connected to the inner side of the pump body 10; one end of the spring 11 Located on the bottom surface of the secondary column 9, the other end of the spring 11 is located on the inner wall of the bottom of the pump body 10; a plastic ball 12 is also provided inside the lower end of the pump body 10; the inner wall of the connecting column 7 is provided with a thread groove 75, an upper clamping device located above the thread groove 75, and a lower clamping device located at the lower end of the thread groove 75, and the outer wall of the main column 5 is provided with a threaded protrusion 56 matched with the thread groove 75; wherein the threaded protrusion 56 moves along the thread groove 75 to the upper end of the thread groove 75 and is matched with the upper clamping device located above the thread groove 75, so that the spring 11 enters a standby state; the threaded protrusion 56 moves along the thread groove 75 to the lower end of the thread groove 75 and is matched with the lower clamping device, so that the spring 11 enters a non-standby state.

[0034] In the present invention, the pressing head 1, the main column 5, the pump body 10, the spring 11, the movable pump plug 8, the auxiliary column 9, the connecting column 7, etc. are all made of plastic. The entire pressing pump is made of plastic, which is environmentally friendly and safe as a whole and easy to recycle. At the same time, the spring used is a plastic spring 11, and a plastic ball 12 for liquid to enter is provided at the lower end of the pump body 10. At the same time, the problem of corrosion of the metal spring 11 and the metal ball and contamination of the contents when using the metal spring 11 and the metal ball is avoided.

[0035] In the present invention, by rotating the push head 1, the threaded protrusion 56 moves along the thread groove 75 to the lower end of the thread groove 75 and is assembled with the lower clamping device; that is, the push head 1 can be locked internally, which is convenient for transportation or display and sale of products. While the push head 1 is locked internally, the preload of the spring 11 is not increased, and the spring 11 is in a state of small compression force. In this way, the spring 11 will not fail due to yield deformation due to compression when not in use, thereby reducing additional fatigue of the spring 11.

[0036] In the present invention, the push head 1 needs to be rotated at a large angle to unlock the push head 1, so that the pump body 10 enters a standby state, which can avoid the situation where the push head 1 is easily opened due to external force collision during transportation.

[0037] See also Figure 1-10 As shown, the pump is initially locked ( Figure 1 As shown), this state can be used for transportation and sales of the pump. At this time, the threaded protrusion 56 on the outer wall of the main column 5 is at the lowest point of its stroke, and the threaded protrusion 56 is at the lower end of the thread groove 75. At the same time, the threaded protrusion 56 is assembled with the lower clamping device to maintain the locked state; and at this time, the preload of the spring 11 will not be increased, and the spring 11 is in a state of low compression force, so that the spring 11 will not fail due to yield deformation due to compression when not in use, reducing the extra fatigue of the spring 11.

[0038] After purchasing the product, when the user wants to operate the pump to use the product, the user rotates the push head 1 in the opening direction, driving the main column 5 connected to the push head 1 to rotate together. During the rotation of the main column 5, the threaded protrusion 56 on the outer surface of the main column 5 interacts with the threaded groove 75 on the inner wall of the connecting column 7, so that the main column 5 moves upward relative to the connecting column 7 until the threaded protrusion 56 moves along the threaded groove 75 to the upper end of the threaded groove 75 and is assembled with the upper clamping device located above the threaded groove 75 to maintain a standby state. ( Figure 2 (shown)

[0039] After use, if the pump needs to be pressed back to the locked state, the push head 1 is rotated in the closing direction opposite to the opening direction. During this process, the threaded protrusion 56 is disengaged from the upper clamping device and re-enters the threaded groove 75. As the push head 1 drives the main column 5 to rotate, the threaded protrusion 56 interacts with the threaded groove 75 to move the threaded protrusion 56 downward. During the whole process, the spring 11 does not receive any additional compression force, and the spring 11 returns to the non-standby state. It can be seen that the cooperation between the threaded protrusion 56 and the threaded groove 75 can switch the spring 11 between the non-standby state and the standby state, that is, it plays the role of switching the state.

[0040] See also Figure 4-8 As shown, further, the outer side surface of the main column 5 close to the push head 1 is vertically connected with a circle of first connecting bosses 51, and the outer side surface of the first connecting boss 51 is sleeved with a circle of plug-in blocks 52, wherein the inner side surface of the plug-in blocks 52, the surface of the first connecting bosses 51, and the outer side surface of the main column 5 form a first plug-in slot 53; the bottom of the push head 1 is provided with a connecting cylinder 101 matched with the first plug-in slot 53, wherein the outer side wall of the connecting cylinder 101 is provided with a circle of ratchet structures 1011, and the outer side surface of the plug-in block 52 located in the first plug-in slot 53 is evenly distributed with a plurality of ratchet structures 55; wherein the connecting cylinder 101 of the push head 1 is plugged into the first plug-in slot 53, and the ratchet structure 1011 and the ratchet structure 55 are meshed with each other.

[0041] It should be noted that in the present application, under normal circumstances, the button head 1 rotates clockwise or counterclockwise, which can also drive the main column 5 to rotate clockwise or counterclockwise synchronously; when the force of the user rotating the button head 1 is greater than the maximum friction force connecting the button head 1 and the main column 5, the button head 1 will rotate relative to the main column 5 to prevent the button head 1 from continuing to drive the main column 5 to rotate, causing damage to the main column 5 and the button head 1; and when it is needed for normal use, the button head 1 is manually rotated, because the ratchet structure 1011 on the button head 1 will abut against the pawl structure 55 on the main column 5, so the button head 1 can drive the main column 5 to rotate together, so the threaded protrusion 56 on the outer wall of the main column 5 moves along the threaded groove 75 on the inner wall of the connecting column 7;

[0042] Furthermore, the inner side wall of the connecting tube 101 is provided with a circle of first clamping bosses 1012, and the outer side surface of the main column 5 located at the first plug-in slot 53 is provided with a circle of first clamping grooves 54, and the first clamping bosses 1012 are clamped in the first clamping grooves 54. The first clamping bosses 1012 and the first clamping grooves 54 cooperate with each other on the push head 1 and the main column 5, so as to ensure the axial connection stability between the main column 5 and the push head 1.

[0043] Furthermore, the connecting column 7 includes a second outer connecting column tube 71, a second inner connecting column tube 72, and a second connecting boss 73, wherein the second inner connecting column tube 72 is arranged inside the second outer connecting column tube 71, and the two ends of the second connecting boss 73 are respectively vertically connected to the outer side surface of the bottom of the second inner connecting column tube 72 and the inner side wall of the bottom of the second outer connecting column tube 71; the threaded protrusions 56 are arranged on the two outer sides of the lower end of the plug-in block 52, and the threaded grooves 75 are opened on the inner wall of the second outer connecting column tube 71.

[0044] Furthermore, the inner wall of the second inner connecting column 72 is provided with a circle of first locking line 721, and the outer side wall of the main column 5 at one end close to the auxiliary column 9 is provided with a circle of second locking line 57, wherein the threaded protrusion 56 moves along the thread groove 75 to the lower end of the thread groove 75 and is matched with the lower locking device, and the first locking line 721 and the second locking line 57 are mutually locked. When the button 1 is in the locked state, the threaded protrusion 56 is matched with the lower locking device, and the first locking line 721 and the second locking line 57 are mutually locked, which can ensure that it remains in the locked state.

[0045] Furthermore, in this specific embodiment, a clamping point groove 561 is provided on the surface of the threaded protrusion 56, and the lower clamping device is a first clamping point block 76 corresponding to the clamping point groove 561. The threaded protrusion 56 moves along the threaded groove 75 to the lower end of the threaded groove 75, and the threaded protrusion 56 is clamped and assembled with the corresponding first clamping point block 76 through the clamping point groove 561.

[0046] Furthermore, the upper clamping device includes a second clamping point block located above the upper end of the thread groove 75, wherein the threaded protrusion 56 extends out of the upper end of the thread groove 75 along the thread groove 75, and the main column 5 is continuously rotated to make the clamping point groove 561 on the surface of the threaded protrusion 56 and the second clamping point block clamped and fitted. Furthermore, the inner wall of the connecting column 7 is also provided with a clamping groove 77 which is in the same plane as the second clamping point block and is located at the rear end of the second clamping point block, and the main column 5 is rotated to make the clamping point groove 561 of the threaded protrusion 56 and the second clamping point block fit, and the bottom block of the spiral protrusion is clamped in the clamping groove 77.

[0047] In this specific embodiment, it is necessary to rotate the push head 1 450 degrees to rise and open, and the large angle prevents the push head 1 from opening easily; the process is to rotate 360 ​​degrees counterclockwise, and then continue to rotate 90 degrees horizontally, the clamping groove 561 of the threaded protrusion 56 falls into the second clamping block, and at the same time, the bottom block of the spiral protrusion is clamped in the clamping groove 77; closing is the opposite, after the threaded protrusion 56 is rotated to the bottom of the thread groove 75, the clamping groove 561 of the threaded protrusion 56 falls into the first clamping block 76, and at the same time, the first clamping buckle line 721 and the second clamping buckle line 57 are clamped with each other to prevent the push head 1 from loosening.

[0048] Furthermore, it also includes a lock cover 3, the upper end of which is sleeved on the top of the pump body 10, and the lower end of which extends into the pump body 10; the lock cover 3 surrounds the connecting column 7, wherein the side wall is provided with a through groove 31, and the outer side wall of the second outer connecting column tube 71 is provided with a limiting strip 74, and the limiting strip 74 of the second outer connecting column tube 71 is driven to pass through the through groove 31 by pressing the pressing head 1. The cooperation between the limiting strip 74 and the through groove 31 can avoid that when the pressing head 1 and the main column 5 are rotated, the connecting column 7 is driven to rotate, so it can be ensured that the connecting column 7 only moves in the axial direction.

[0049] Furthermore, it also includes an outer locking cover 2, the bottom of which is provided with a circle of fitting grooves 21, wherein the tops of the pump body 10 and the locking cover 3 are both provided in the fitting grooves 21, and the outer locking cover 2 surrounds the main column 5, wherein a waterproof ring is also provided at the junction of the outer locking cover 2 and the main column 5. The press pump in this application has a waterproof ring to prevent some water from entering the bottle; the pump head has a moderately straight neck, beautiful appearance, and can be opened by rotating, which conforms to the usage habits of consumers.

[0050] Furthermore, it also includes a gasket 4, and a circle of second connecting bosses 73 are provided on the outer side surface of the pump body 10 close to the push head 1, and the gasket 4 is sleeved on the outer side surface of the pump body 10, and the surface of the gasket 4 is tightly attached to the bottom surface of the second connecting boss 73;

[0051] Furthermore, the bottle cap 6 is included. The bottle cap 6 is sleeved on one end of the pump body 10 close to the button 1 , and the bottle cap 6 is in close contact with the surface of the second connecting boss 73 .

[0052] Furthermore, a suction pipe 13 is included, and the upper end of the suction pipe 13 is connected to the end of the pump body 10 .

[0053] See also Fig.11 The plastic spring 11 includes a top circular ring seat 1101, a bottom circular ring seat 1102, and a plastic elastic member arranged between the top circular ring seat 1101 and the bottom circular ring seat 1102, wherein the plastic elastic member includes two spiral single-wire bodies 1103, wherein the upper and lower ends of the spiral single-wire body 1103 are respectively connected to the top circular ring seat 1101 and the bottom circular ring seat 1102, and the two spiral single-wire bodies 1103 are placed in a staggered manner, and a plurality of arc-shaped reinforcing ribs 1104 are connected between the two spiral single-wire bodies 1103, wherein the reinforcing ribs 1104 can reduce spring fatigue and greatly increase the service life of the plastic spring 11.

[0054] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A compression pump, characterized in that: It includes a push head, a main column, a pump body, a spring, a movable pump plug, a secondary column, and a connecting column, wherein the push head, the main column, the pump body, the spring, the movable pump plug, the secondary column, and the connecting column are all made of plastic; the connecting column is located in the pump body, the secondary column is arranged in the pump body and connected to the bottom of the connecting column, the upper end of the main column is equipped with the push head, the lower end of the main column extends into the pump body and is connected to the connecting column, and the main column is connected to the secondary column through the connecting column; the movable pump plug is sleeved on the outer side of the secondary column, and the outer side of the movable pump plug is movably connected to the inner side of the pump body; one end of the spring is located at the bottom of the secondary column The other end of the spring is located on the inner wall of the bottom of the pump body; a plastic ball is also provided inside the lower end of the pump body; the inner wall of the connecting column is provided with a threaded groove, an upper clamping device located above the threaded groove and a lower clamping device located at the lower end of the threaded groove, and the outer wall of the main column is provided with a threaded protrusion matched with the threaded groove; wherein the threaded protrusion moves along the threaded groove to the upper end of the threaded groove and is matched with the upper clamping device located above the threaded groove, thereby putting the spring into a standby state; the threaded protrusion moves along the threaded groove to the lower end of the threaded groove and is matched with the lower clamping device, thereby putting the spring into a non-standby state.

2. A pressing pump according to claim 1, characterized in that: The outer side surface of one end of the main column close to the push head is vertically connected with a circle of first connecting bosses, and the outer side surface of the first connecting boss is sleeved with a circle of plug-in blocks, wherein the inner side surface of the plug-in blocks, the surface of the first connecting bosses and the outer side surface of the main column form a first plug-in slot; the bottom of the push head is provided with a connecting cylinder matched with the first plug-in slot, wherein the outer side wall of the connecting cylinder is provided with a circle of ratchet structure, and the inner side surface of the plug-in block of the first plug-in slot is evenly distributed with a plurality of pawl structures; wherein the connecting cylinder of the push head is plugged into the first plug-in slot, and the ratchet structure and the pawl structure are meshed with each other.

3. A pressing pump according to claim 2, characterized in that: The inner side wall of the connecting tube is provided with a circle of first clamping bosses, the outer side surface of the main column located in the first plug-in slot is provided with a circle of first clamping grooves, and the first clamping bosses are clamped in the first clamping grooves.

4. A pressing pump according to claim 2, characterized in that: The connecting column includes a second outer connecting column tube, a second inner connecting column tube, and a second connecting boss, wherein the second inner connecting column tube is arranged inside the second outer connecting column tube, and the two ends of the second connecting boss are respectively vertically connected to the outer side surface of the bottom of the second inner connecting column tube and the inner side wall of the bottom of the second outer connecting column tube; the threaded protrusions are arranged on the two outer sides of the lower end of the plug-in block, and the threaded grooves are opened on the inner wall of the second outer connecting column tube.

5. A pressing pump according to claim 4, characterized in that: The inner wall of the second inner connecting column tube is provided with a circle of first locking buckle line, and the outer wall of the main column at one end close to the secondary column is provided with a circle of second locking buckle line, wherein the threaded protrusion moves along the thread groove to the lower end of the thread groove and is assembled with the lower locking device, and the first locking buckle line and the second locking buckle line are locked with each other.

6. A pressing pump according to claim 1 or 5, characterized in that: A clamping point groove is provided on the surface of the threaded protrusion, and the lower clamping device is a first clamping point block corresponding to the clamping point groove. The threaded protrusion moves along the threaded groove to the lower end of the threaded groove, and the threaded protrusion is clamped and assembled with the corresponding first clamping point block through the clamping point groove.

7. A pressing pump according to claim 6, characterized in that: The upper clamping device includes a second clamping point block located above the upper end of the thread groove, wherein the threaded protrusion extends out of the upper end of the thread groove along the thread groove, and the main column continues to rotate so that the clamping point groove on the surface of the threaded protrusion is clamped and assembled with the second clamping point block.

8. A pressing pump according to claim 7, characterized in that: The inner wall of the connecting column is also provided with a clamping groove which is in the same plane as the second clamping block and located at the rear end of the second clamping block. The main column is rotated to make the clamping groove of the threaded protrusion fit with the second clamping block, and the bottom block of the spiral protrusion is clamped in the clamping groove.

9. A pressing pump according to claim 4, characterized in that: It also includes a locking cover, the upper end of which is sleeved on the top of the pump body, and the lower end of which extends into the pump body; the locking cover surrounds the connecting column, wherein a through groove is provided on the side wall of the locking cover, and a limiting strip is provided on the outer side wall of the second external connecting column tube, and the limiting strip of the second external connecting column tube is driven to pass through the through groove by pressing the button head.

10. A pressing pump according to claim 9, characterized in that: It also includes an outer locking cover, the bottom of which is provided with a circle of fitting grooves, wherein the top of the pump body and the locking cover are both arranged in the fitting grooves, and the outer locking cover surrounds the main column, wherein a waterproof ring is also provided at the junction of the outer locking cover and the main column.

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