CN113250923A

CN113250923A - Pump head, pump core with pump head and palm pressure type building block pump tank with pump core

Info

Publication number: CN113250923A
Application number: CN202110681673.8A
Authority: CN
Inventors: 黄益新
Original assignee: Shanghai Jienuode Plastic Products Co ltd
Current assignee: Shanghai Jienuode Plastic Products Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2021-08-13
Also published as: WO2022262296A1

Abstract

The application relates to daily chemical articles for use technical field discloses a pump head, has pump core of pump head and has palm pressure formula building blocks pump jar of pump core, and wherein, the pump head is provided with pump material subassembly including the pump case in the pump case, and pump material subassembly includes: the pump comprises a pumping cavity, a piston body, a gland and a feeding hole, wherein the pumping cavity is located in the pump shell and is communicated with an external structure used for containing materials in a one-way mode, the piston body is in sliding sealing fit with the inner peripheral wall of the pumping cavity, the gland is located on the outer side of the pumping cavity and drives the piston body to slide in the pumping cavity, and the feeding hole and the discharging hole of the pumping cavity are arranged in a right-to-one mode. The feed inlet and the discharge gate of material cavity are just to setting up to this application, are convenient for get into the material in the material cavity of taking out from the feed inlet and directly pump out from the discharge gate again, consequently, can need not to wait that the material is full of and take out the material cavity, consequently improved pumping speed.

Description

Pump head, pump core with pump head and palm pressure type building block pump tank with pump core

Technical Field

The application relates to the technical field of daily chemical articles, in particular to a pump head, a pump core with the pump head and a palm pressure type building block pump tank with the pump core.

Background

Products such as toothpaste, facial cleanser, ointment load through soft packing tube and hold usually, when needs use, through the extrusion body in order to extrude intraductal product, consequently, when the product is about to use up, it takes the process comparatively hard, and often can't use up intraductal product, causes the waste.

In order to solve the problems that the taking process is labor-consuming and products cannot be used up, part of manufacturers choose to adopt pump type packing tubes to contain the products so as to pump out the products in the tubes by utilizing the negative pressure principle.

However, in the pump packaging tube described above, the inventor has considered that there is a disadvantage that the extrusion speed of the product is slow when the pump packaging tube on the market takes out the product, and particularly, the product needs to be pressed repeatedly to pump the product when the pump packaging tube is used for the first time.

Disclosure of Invention

In order to improve pump formula packing tube when taking the product, the slower problem of extrusion speed, this application provides a pump head, has the pump core of pump head and has the palm pressure formula building blocks pump jar of pump core.

In a first aspect, the present application provides a pump head.

The utility model provides a pump head, is including the pump case, be provided with pump material subassembly in the pump case, pump material subassembly includes: the pump comprises a pumping cavity, a piston body and a gland, wherein the pumping cavity is located in the pump shell and is in one-way communication with an external structure for containing materials, the piston body is in sliding sealing fit with the inner peripheral wall of the pumping cavity, the gland is located on the outer side of the pumping cavity and drives the piston body to slide in the pumping cavity, and a feeding hole and a discharging hole of the pumping cavity are arranged in a right-to-one mode.

By adopting the technical scheme, the feeding hole and the discharging hole of the material pumping cavity are arranged just opposite to each other, so that the materials entering the material pumping cavity from the feeding hole can be directly pumped out from the discharging hole, and therefore the material pumping cavity does not need to be filled with the materials, and the pumping speed is improved.

In some embodiments, a separation support is installed in the pump casing, the separation support comprises an outer cylinder and an inner cylinder which are connected with each other into a whole, the outer cylinder is installed and fixed with the pump casing, the inner cylinder is located in the cavity of the outer cylinder, the inner cavity of the inner cylinder forms the material pumping cavity, and one end of the inner cylinder is inwardly reduced in diameter to form a one-way feeding valve plate.

Through adopting above-mentioned technical scheme to form and take out the material cavity, and be favorable to realizing taking out the one-way intercommunication of the exterior structure of material cavity feed end and splendid attire material, the one-way intercommunication here means can only follow the exterior structure to taking out the feeding of material cavity direction.

In some embodiments, the one-way feeding valve sheet is annular, and the one-way feeding valve sheet comprises an annular deformation part and an annular rigid part, the rigid part is located in the deformation part inner ring, and the deformation part and the inner cylinder are integrally formed.

Through adopting above-mentioned technical scheme, one-way feeding valve block is through its deformation portion and interior barrel integrated into one piece, and the one-way feeding valve block of being convenient for floats after the atress to be favorable to realizing the function of one-way intercommunication with the discharge gate cooperation of exterior structure.

In some embodiments, the piston body is slidably disposed in the inner cylinder cavity in a sealing manner, and the sliding direction of the piston body relative to the inner cylinder is located in the axial direction of the inner cylinder, the material pumping chamber is a space between the one-way feeding valve sheet and the piston body, a discharge hole penetrates through the piston body along the sliding direction of the piston body relative to the inner cylinder, the discharge hole is opposite to the inner hole of the rigid portion, and a one-way discharge valve is installed in the discharge hole.

Through adopting above-mentioned technical scheme, one-way feeding valve block and one-way ejection of compact valve member have realized taking out one-way feeding, the ejection of compact of material cavity, consequently, expand again behind the material cavity is taken out in the compression and take out when material cavity space, can make and take out the material cavity and form the negative pressure and extract the material in the exterior structure of splendid attire material, then when the material cavity is taken out in the compression once more, can follow the discharge gate department of piston body and extrude the material.

In some embodiments, the one-way outlet valve member comprises: with installation department, the valve block that sets up relatively with the installation department of piston body cooperation installation, and connect the installation department with a plurality of deformation support arm of valve block, the discharge opening is close to the one end port internal contraction of one-way feeding valve block forms the butt face, the valve block when non-stress state with the butt face supports tight fit the valve block with during the butt face supports the tight fit, the valve block seals completely the discharge opening is close to the one end port of one-way feeding valve block.

Through adopting above-mentioned technical scheme, one-way ejection of compact valve member is when non-atress state, and the discharge opening can be closed completely to the valve block is close to the one end port of one-way feeding valve block, and behind the valve block atress, the deformation support arm can be deformed again so that the valve block break away from with the butt face is contradicted to the function of the one-way ejection of compact of discharge opening of material from the piston body has been realized.

In some embodiments, each of the deforming arms consists of at least 2 arm portions, and at least 2 arm portions are not coaxial.

By adopting the technical scheme, the deformation support arm is convenient to deform after being stressed.

In some embodiments, the gland is installed in cooperation with the piston body, and the gland is penetrated with a discharge passage communicated with the discharge hole.

Through adopting above-mentioned technical scheme, the material of being convenient for to pump out from the discharge opening is pumped out from discharging channel.

In some embodiments, an elastic member for providing restoring force of the gland and the piston body is further disposed in the pump housing.

Through adopting above-mentioned technical scheme, after taking out the material cavity in order to compress the piston body application of force, loosen the outside application of force to the piston body, then the piston body can return under the effect of elastic component to the space of material cavity is taken out in the increase, makes and takes out and forms the negative pressure in the material cavity.

In a second aspect, the present application provides a pump cartridge.

The utility model provides a pump core, including above-mentioned pump head, and with pump head sealing connection's the jar body, the internal sealed sliding of jar is provided with the piston spare, jar body one end is the air inlet, and the other end is the discharge gate, the piston spare is located between air inlet and the discharge gate, the discharge gate with be used for filling out between the piston spare and establish the material, the discharge gate be equipped with the cooperation of one-way feeding valve block realize to take out the piece that blocks of the one-way transport material of material cavity.

Through adopting above-mentioned technical scheme, the output of the internal material of jar also adopts the principle that the negative pressure was extruded, just forms the negative pressure and takes out the material from jar internal system promptly in the material chamber of taking out with jar body intercommunication to make the internal negative pressure that forms of jar, then outside atmospheric pressure promotes the piston spare and removes, realizes then that the material is from jar body to the pump sending in taking out the material chamber.

In some embodiments, it includes the piece that blocks that is located in discharge gate opening area, and connects block the piece with the linking arm at discharge gate border, block the piece with leave the punishment in advance clearance between the discharge gate the jar body with pump head erection joint back, block the piece can with rigidity portion supports tight fit, and blocks the piece and seal completely the hole of rigidity portion, one-way feeding valve block atress back, deformation portion can deform so that rigidity portion break away from with block the piece and contradict.

By adopting the technical scheme, the blocking piece at the discharge port of the tank body is matched with the one-way feeding valve plate, the one-way feeding valve plate can realize the floating of the one-way feeding valve plate after being stressed due to the arrangement of the deformation part, and the suction force towards the inner cavity of the material pumping cavity can be formed after the negative pressure is formed in the material pumping cavity, so that the material in the tank body communicated with the material pumping cavity extrudes the one-way feeding valve plate under the action of the negative pressure suction force, the deformation part is deformed to separate the rigid part from being abutted against the blocking piece, and the material enters the material pumping cavity; and when the material cavity is taken out in the recompression, one-way feeding valve block receives the extrusion of taking out the interior material of material cavity, and the piece that closes with jar body discharge gate department tightly to make the material only can follow the discharge opening pump of piston body.

In a third aspect, the present application provides a palm pressure type building block pump can.

The utility model provides a palm pressure formula building blocks pump jar, including above-mentioned pump core, and with the shell body of pump core cooperation installation, the pump core is located inside the shell body, be equipped with in addition with the complex pump cover that slides of shell body straight line, the pump cover with the gland is connected, and the pump cover be equipped with pump out the passageway of drawing the material cavity intercommunication.

By adopting the technical scheme, the assembled pump tank is provided, materials can be pumped out quickly, the outer shell matched with the pump core can be manufactured independently according to design requirements and assembled with the pump core, and the assembly form is similar to that of building blocks, so that the appearance diversity of the pump tank is realized; in addition, the pump cover is in linear sliding fit with the outer shell, so that the palm pressing type linear force application can realize the compression of the pumping cavity, and the operation is more labor-saving.

Drawings

FIG. 1 is a schematic diagram of a pump head provided herein;

FIG. 2 is a schematic exploded view of a pumping assembly in a pump head provided herein;

FIG. 3 is a cross-sectional view of a pump head provided herein;

FIG. 4 is a cross-sectional view of a pumping assembly in a pump head provided herein;

FIG. 5 is a schematic structural diagram of a one-way discharge valve element in a pump head according to the present application;

FIG. 6 is a cross-sectional view of the pump head provided herein with the piston member and one-way discharge valve member installed;

FIG. 7 is a schematic illustration of an exploded view of a pump cartridge provided herein;

FIG. 8 is a schematic diagram of an exploded view of a canister in a pump cartridge provided herein;

FIG. 9 is a cross-sectional view of a pump cartridge provided herein;

fig. 10 is a cross-sectional view of a palm-pressed type toy building pump canister provided by the present application.

In the drawings, 1, a pump casing; 2. a material pumping assembly; 21. a material pumping chamber; 22. a piston body; 221. a discharge hole; 2211. an abutting surface; 2212. mounting a step; 3. a gland; 31. a discharge channel; 5. a separation support; 51. an outer cylinder; 52. an inner cylinder; 6. a one-way feeding valve plate; 61. a deformation section; 62. a rigid portion; 7. a one-way discharge valve member; 71. an installation part; 72. a valve plate; 73. deforming the support arm; 731. a supporting arm part; 8. an elastic member; 9. a tank body; 91. a piston member; 901. an air inlet; 902. a discharge port; 92. a blocking member; 921. a blocking sheet; 93. connecting the pipe sections; 94. a labyrinth seal structure; 903. a connecting arm; 904. a material passing gap; 10. an outer housing; 101. edge clamping; 20. a pump cover; 201. a pump-out channel; 30. a pump core; 301. a pump head; 9011. a grip portion; 9012. an air inlet; 9013. and (5) kneading the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses a pump head, which comprises a pump shell 1, a pump material assembly 2 positioned in the pump shell 1, and a gland 3 penetrating through the pump shell 1 and matched with the pump material assembly 2, as shown in fig. 1. As shown in fig. 2 and 3, the pump housing 1 is a cylindrical housing having one end open and the other end closed; the pump material assembly 2 mainly comprises a separation support 5 and a piston body 22 which is positioned in the separation support 5 and is in sliding fit with the separation support 5, wherein the separation support 5 comprises an outer cylinder body 51 and an inner cylinder body 52 which are coaxially sleeved, the inner cylinder body 52 and the outer cylinder body 51 are connected into a whole at one end part, or the two are integrally formed, in the embodiment of the application, the separation support 5 is vertically arranged in the axial direction, one end of the inner cylinder body 52, which is connected with the outer cylinder body 51, faces downwards, as shown in fig. 3, the top end part of the outer cylinder body 51 is in embedded fit with the inner wall of the pump shell 1, and a gap is formed between the outer cylinder body 51 and the inner wall of the pump shell 1; the inner peripheral wall of the inner cylinder 52 is in sliding sealing fit with the piston body 22; and the sliding direction of the piston body 22 relative to the inner cylinder body 52 is located in the axial direction of the inner cylinder body 52; the bottom end of the inner cylinder 52 is inwardly reduced to form a one-way feeding valve plate 6, the center of the one-way feeding valve plate 6 is a feeding hole, a discharging hole 221 penetrates through the piston body 22 along the sliding direction of the piston body relative to the inner cylinder 52, the discharging hole 221 and the feeding hole are arranged oppositely, a one-way discharging valve 7 is installed in the discharging hole 221, the space between the one-way feeding valve plate 6 and the piston body 22 is a pumping cavity 21, and the one-way communication between the pumping cavity 21 and the outside is realized through the one-way feeding valve plate 6 and the one-way discharging valve 7; the gland 3 passes through the closed end of the pump shell 1 to be connected with the piston body 22, the gland 3 penetrates through the discharge channel 31 communicated with the discharge hole 221, the elastic part 8 is further installed between the gland 3 and the separation support 5, and two ends of the elastic part 8 are respectively abutted against the gland 3 and the separation support 5.

As shown in fig. 4, the one-way feeding valve sheet 6 is annular and includes an annular deformation portion 61 and an annular rigid portion 62, the section of the deformation portion 61 is wavy and has certain elasticity, the rigid portion 62 is a hard member, the rigid portion 62 is located in the inner ring of the deformation portion 61, the deformation portion 61 is located in the inner ring of the inner cylinder 52, and the rigid portion 62, the deformation portion 61 and the inner cylinder 52 are integrally injection molded.

As shown in fig. 5, the one-way discharge valve element 7 includes: the piston comprises an installation part 71 which is installed in a matched mode with the piston body 22, a valve plate 72 which is arranged opposite to the installation part 71, and a plurality of deformation support arms 73 which are used for connecting the installation part 71 and the valve plate 72, wherein the installation part 71 is annular, the valve plate 72 is in a circular cake shape and is coaxially arranged, a gap is formed between the installation part 71 and the valve plate 72 in the axial direction, and the deformation support arms 73 are circumferentially arrayed between the installation part 71 and the valve plate 72. Each deforming arm 73 is composed of at least 2 parts of arm parts 731, and at least 2 parts of arm parts 731 are not coaxial, so that the deforming arm 73 can be elastically deformed when being stressed.

As shown in fig. 5 and fig. 6, the discharge hole 221 on the piston body 22 is internally contracted to form a mounting step 2212, and the inner diameter of one end of the discharge hole 221 away from the one-way feeding valve sheet 6 is larger than that of the other end thereof, and the one-way discharge valve member 7 is mounted in the discharge hole 221 and is in abutting fit with the mounting step 2212 through the mounting portion 71. One end port of the discharge hole 221 close to the one-way feeding valve sheet 6 contracts inwards again to form an abutting surface 2211, the one-way discharge valve member 7 is installed in the discharge hole 221 until the installation portion 71 is in abutting fit with the installation step 2212, when the valve sheet 72 is in an unstressed state, the valve sheet 72 is in abutting fit with the abutting surface 2211, and when the valve sheet 72 is in abutting fit with the abutting surface 2211, the discharge hole 221 is completely sealed by the valve sheet 72.

The application also discloses a pump core, as shown in fig. 7 and 8, including above-mentioned pump head 301 and one jar body 9 with pump head 301 sealing connection, combine fig. 9 to show, jar body 9 internal seal slides and is provided with piston 91, jar body 9 one end is air inlet 901, the other end is discharge gate 902, piston 91 is located between air inlet 901 and the discharge gate 902, be used for filling the material between discharge gate 902 and the piston 91, discharge gate 902 department is formed with the piece 92 that realizes drawing the one-way transport material of material cavity 21 with the cooperation of one-way feeding valve block 6.

As shown in fig. 7 and 9, the blocking member 92 includes a blocking piece 921 located in the opening area of the discharge hole 902, and a connecting arm 903 connecting the blocking piece 921 and the edge of the discharge hole 902, the blocking piece 921 is located at the center of the discharge hole 902, a material passing gap 904 is left between the blocking piece 921 and the discharge hole 902, and the connecting arm 903 is circumferentially arrayed in the material passing gap 904. In addition, after the tank 9 is installed and connected with the pump head 301, the blocking piece 921 can be tightly matched with the rigid part 62, and the blocking piece 921 completely seals the inner hole of the rigid part 62, and after the one-way feeding valve plate 6 is stressed, the deformation part 61 can deform to enable the rigid part 62 to be separated from the abutting joint with the blocking piece 921. Therefore, the blocking piece 92 at the discharge hole 902 of the tank body 9 is matched with the one-way feeding valve plate 6, the one-way feeding valve plate 6 can float after being stressed due to the arrangement of the deformation part 61, and suction force towards the inner cavity of the material pumping cavity 21 can be formed after negative pressure is formed in the material pumping cavity 21, so that the material in the tank body 9 communicated with the material pumping cavity 21 extrudes the one-way feeding valve plate 6 under the action of the negative pressure suction force, the deformation part 61 is deformed to enable the rigid part 62 to be separated from being abutted against the blocking piece 921, and the material enters the material pumping cavity 21; when the material pumping chamber 21 is compressed again, the one-way feeding valve plate 6 is pressed by the material in the material pumping chamber 21 and tightly attached to the blocking member 92 at the discharge hole 902 of the tank 9, so that the material can only be pumped out from the discharge hole 221 of the piston body 22.

As shown in fig. 9, an internal thread is formed on the inner wall of the pump housing 1 of the pump head 301, and the internal thread is located in a gap formed between the outer cylinder 51 and the pump housing 1; one end of the tank 9 located at the discharge port 902 extends along the axis to form a connection pipe section 93, an external thread matched with the internal thread is formed on the outer wall of the connection pipe section 93, and the connection pipe section 93 can be embedded with a gap formed between the outer cylinder 51 and the pump case 1, so that when the pump head 301 and the tank 9 are connected, the connection pipe section 93 is screwed in after being aligned with the gap formed between the outer cylinder 51 and the pump case 1.

After the pump head 301 and the tank 9 are connected, the bottom surface of the separation support 5 in the pump head 301 is attached to the end surface of the discharge port 902 of the tank 9, and in order to better realize the sealing connection between the pump head 301 and the tank 9, a labyrinth seal structure 94 is formed between the bottom surface of the separation support 5 and the end surface of the discharge port 902 of the tank 9.

The application also discloses palm pressure formula building blocks pump jar, as shown in fig. 10, including above-mentioned pump core 30 to and the shell body 10 with the cooperation installation of above-mentioned pump core 30, shell body 10 is the tubular construction that both ends link up, and the inside completion of shell body 10 one end forms card limit 101, and the shell body 10 cover is located the outside of pump core 30, and card limit 101 centre gripping is between pump head 301 and jar body 9. Therefore, when the pump core 30 and the outer housing 10 are mounted, the pump head 301 is first inserted into the outer housing 10 from one end of the outer housing 10 until the pump head 301 abuts against the clamping edge, and then the can 9 is inserted from the other end of the outer housing 10, and the can 9 and the pump head 301 are screwed tightly, so that the clamping edge 101 is clamped between the pump head 301 and the can 9, thereby realizing the mounting and fixing of the outer housing 10 and the pump core 30.

As shown in fig. 8 to 10, in order to rotate the can body 9 when the can body is mounted, a holding part 9011 is further embedded at one end of the air inlet 901 of the can body 9, an air inlet hole 9012 is formed in the holding part 9011, the holding part 9011 is circumferentially positioned and connected with the can body 9, and a pinching block 9013 which is convenient to pinch is arranged on one side end face of the holding part 9011 facing the outside of the can body 9, so that the can body 9 can be rotated by pinching the pinching block 9013; in addition, the pump shell 1 and the outer shell 10 are clamped and connected in a circumferential positioning mode in a clamping and embedding mode, and one end, far away from the tank body 9, of the pump shell 1 extends out of the outer shell 10, so that the pump head 301 is ensured to be fixed relative to the outer shell 10 when the tank body 9 is rotated, and only the outer shell 10 needs to be held, so that the installation process is more convenient.

As shown in fig. 10, a pump cover 20 is further provided, which is in linear sliding fit with the outer shell 10 in the axial direction of the outer shell 10, the pump cover 20 is embedded and connected with the gland 3, and the pump cover 20 is provided with a pumping-out channel 201 communicated with the pumping-out chamber 21.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pump head comprising a pump housing (1), characterized in that: be provided with pump material subassembly (2) in pump case (1), pump material subassembly (2) includes: the pump comprises a pumping cavity (21) which is positioned in the pump shell (1) and is communicated with an external structure for containing materials in a one-way mode, a piston body (22) which is in sliding sealing fit with the inner peripheral wall of the pumping cavity (21), and a gland (3) which is positioned on the outer side of the pumping cavity (21) and drives the piston body (22) to slide in the pumping cavity (21), wherein a feeding hole and a discharging hole of the pumping cavity (21) are arranged in a right-to-one mode.

2. A pump head as claimed in claim 1, wherein the pump casing (1) has a separation support (5) mounted therein, the separation support (5) comprises an outer cylinder (51) and an inner cylinder (52) connected to each other, the outer cylinder (51) is fixed to the pump casing (1), the inner cylinder (52) is located in the outer cylinder (51), the inner cavity of the inner cylinder (52) forms the pumping chamber (21), and one end of the inner cylinder (52) is inwardly reduced to form the one-way valve plate (6).

3. A pump head as claimed in claim 2, wherein the one-way feed valve member (6) is annular, the one-way feed valve member (6) comprising an annular deformation portion (61) and an annular rigid portion (62), the rigid portion (62) being located at an inner ring of the deformation portion (61), the deformation portion (61) being integrally formed with the inner cylinder (52).

4. A pump head as claimed in claim 3, wherein the piston body (22) is slidably and sealingly disposed in the cavity of the inner cylinder (52), and the sliding direction of the piston body relative to the inner cylinder (52) is located along the axial direction of the inner cylinder (52), the pumping chamber (21) is a space between the one-way feeding valve plate (6) and the piston body (22), a discharge hole (221) is formed in the piston body (22) along the sliding direction of the piston body relative to the inner cylinder (52), the discharge hole (221) is disposed opposite to the inner hole of the rigid portion (62), and a one-way discharge valve (7) is disposed in the discharge hole (221).

5. A pump head as claimed in claim 4, wherein the one-way outlet valve member (7) comprises: with installation department (71) of piston body (22) cooperation installation, valve block (72) that set up relatively with installation department (71), and connect installation department (71) with a plurality of deformation support arm (73) of valve block (72), discharge opening (221) are close to the one end port of one-way feeding valve block (6) is interior to contract and is formed butt face (2211), valve block (72) when non-stress state with butt face (2211) support tight fit valve block (72) with butt face (2211) are during the tight fit, valve block (72) are closed completely discharge opening (221) are close to the one end port of one-way feeding valve block (6).

6. A pump head as claimed in claim 5, wherein each deformable arm (73) comprises at least 2 arm parts (731), and at least 2 arm parts (731) are non-coaxial.

7. A pump head as claimed in claim 5, wherein the gland (3) is mounted in co-operation with the piston body (22), and the gland (3) has a discharge passage (31) extending therethrough in communication with the discharge opening (221).

8. A pump head according to claim 1, wherein a resilient member (8) is provided within the pump housing (1) to provide a return force between the gland (3) and the piston body (22).

9. A pump core, comprising a pump head according to any one of claims 3 to 8, and a tank (9) hermetically connected to the pump head, wherein a piston (91) is disposed in the tank (9) in a sliding manner, one end of the tank (9) is an air inlet (901), the other end of the tank is an outlet (902), the piston (91) is located between the air inlet (901) and the outlet (902), a material is filled between the outlet (902) and the piston (91), and the outlet (902) is provided with a blocking member (92) that cooperates with the one-way feeding valve plate (6) to realize one-way material conveying to the pumping chamber (21).

10. The pump core according to claim 9, wherein the blocking member (92) comprises a blocking piece (921) located in the opening area of the discharge port (902) and a connecting arm (903) connecting the blocking piece (921) and the edge of the discharge port (902), a material passing gap (904) is left between the blocking piece (921) and the discharge port (902), after the tank body (9) is installed and connected with the pump head, the blocking piece (921) can be in abutting fit with the rigid part (62), the blocking piece (921) completely seals the inner hole of the rigid part (62), and after the one-way feeding valve plate (6) is stressed, the deformation part (61) can be deformed to enable the rigid part (62) to be separated from being abutted against the blocking piece (921).

11. A palm pressure type building block pump tank, characterized by comprising the pump core of claim 9 or 10, and an outer shell (10) installed in cooperation with the pump core, wherein the pump core is arranged inside the outer shell (10), a pump cover (20) matched with the outer shell (10) in a linear sliding mode is additionally arranged, the pump cover (20) is connected with the pressing cover (3), and the pump cover (20) is provided with a pump outlet channel (201) communicated with the pumping cavity (21).