Valve body and plunger pump

Abstract

The invention relates to the technical field of plunger pumps, and discloses a valve body and a plunger pump, two valve bodies and two valve seat bodies are included, one sides of the bottom ends of the two valve bodies are each provided with a first leather sheath, the other sides of the bottom ends of the two valve bodies are each provided with a second leather sheath, and the left end and the right end of one side of each second leather sheath are each provided with an insertion groove; one end of the inserting block is fixedly connected to one side of the first leather sheath, an air bag is fixedly connected to the inner side wall of the inserting groove, and the bottom end of the air bag communicates with a pipeline. According to the valve body, the first leather sheath and the second leather sheath are placed on the outer side of the valve body, the inserting block enters the inserting groove, air is injected into the air bag so that the air bag can expand, and the gap between the inserting groove and the inserting block can be sealed; when the air bag is filled with air, the second spring can pull the sealing ball to move downwards and be tightly attached to the opening in the top of the base, the pipeline is plugged, and therefore a worker can conveniently fix the leather sheath to the outer side of the valve body.

Description

Technical Field

[0001] The present invention relates to the technical field of plunger pumps, and in particular to a valve body and a plunger pump. Background Art

[0002] A plunger pump is a common hydraulic pump. It relies on the reciprocating movement of the plunger in the cylinder block to change the sealed working volume to achieve oil suction and oil pressure. The valve body is a key component in the plunger pump, mainly used to control the one-way flow of fluid. It is mainly composed of a valve body, a valve rubber and a valve seat body. When the valve body works, it usually makes a regular opening and closing movement with the valve seat body to realize the pumping of high-pressure liquid.

[0003] In order to ensure the sealing effect when the valve body and the valve seat body are closed, a valve rubber needs to be sleeved outside the valve body to seal the gap between the valve body and the valve seat body.

[0004] However, in order to ensure that the valve rubber is tightly attached to the valve body, the inner diameter of the valve rubber is slightly smaller than that of the valve body. At this time, when the staff connects the valve rubber to the outside of the valve body, due to the inner diameter of the valve rubber being slightly smaller than that of the valve body, the leather sleeve will be tightened to the surface of the valve body, making it inconvenient for the staff to install the valve rubber. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a valve body and a plunger pump, aiming to improve the problem that in the prior art, when the staff connects the valve rubber to the outside of the valve body, due to the inner diameter of the valve rubber being slightly smaller than that of the valve body, the leather sleeve will be tightened to the surface of the valve body, making it inconvenient for the staff to install the valve rubber.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme: A valve body and a plunger pump, including two valve body bodies and two valve seat bodies,

[0007] On one side of the bottom end of each of the two valve body bodies, a leather sleeve one is provided, and on the other side of the bottom end of each of the two valve body bodies, a leather sleeve two is provided;

[0008] A plurality of slots are opened on one side of the two leather sleeves two;

[0009] A plurality of insertion blocks are fixedly connected to one side of the two leather sleeves one, and one side of the plurality of insertion blocks is inserted into the slots for connecting the leather sleeve one and the leather sleeve two;

[0010] A plurality of air bags are fixedly connected to the inner side wall of the slots, and the bottom ends of the plurality of air bags communicate with a pipeline, and one end of the pipeline penetrates the inner bottom wall of the slot;

[0011] A plurality of bases are fixedly connected to the inner side wall of the pipeline;

[0012] A plurality of second springs are all fixedly connected to the inner bottom wall of the base, and the other ends of the plurality of second springs are fixedly connected with a sealing ball; used to block the pipeline.

[0013] As a further description of the above technical solution:

[0014] A plurality of the valve body bodies are all arranged at the top end of the valve seat body, a fixing frame is fixedly connected to the top end of the plurality of valve seat bodies, a first spring is fixedly connected to the bottom end of the plurality of fixing frames, and one end of the plurality of first springs is fixedly connected to the top end of the valve body body, used to provide elastic force for the valve body body.

[0015] As a further description of the above technical solution:

[0016] A fixing seat is fixedly connected to the middle of the bottom end of each of the valve body bodies. The plurality of fixing seats are arranged in a cavity structure with an opening at the bottom. A valve claw is inserted into each of the plurality of fixing seats. Convex blocks are fixedly connected to both sides of the top end of each of the valve claws. Bolts are threadedly connected to the bottom ends of the plurality of convex blocks. The other ends of the plurality of bolts all penetrate through the inner bottom wall of the fixing seat to fix the valve claws.

[0017] As a further description of the above technical solution:

[0018] A plurality of the first leather sleeves are fixedly connected with a plurality of uniformly distributed liquid sacs, and a sealing glue is stored inside the liquid sacs.

[0019] As a further description of the above technical solution:

[0020] The outer sides of the plurality of valve claws are in close contact with the inner side wall of the valve seat body to guide the valve body body.

[0021] As a further description of the above technical solution:

[0022] The plurality of insertion blocks are arranged in a T-shaped structure so that the airbag can be engaged with the insertion blocks.

[0023] As a further description of the above technical solution:

[0024] The plurality of bases are arranged in a cavity structure with openings at both the top and bottom ends.

[0025] As a further description of the above technical solution:

[0026] The diameter of the sealing ball is larger than the inner diameter of the base, and the bottom end of the sealing ball is in close contact with the inner side wall of the top opening of the base.

[0027] As a further description of the above technical solution:

[0028] It includes a pump body, through holes are provided on both the top and bottom sides at one end of the pump body, and two valve seat bodies are fixedly connected inside the through holes.

[0029] As a further description of the above technical solution:

[0030] A piston slides inside the pump body.

[0031] The present invention has the following beneficial effects:

[0032] In the present invention, the first leather sleeve and the second leather sleeve are placed outside the valve body, the insertion block enters the inside of the slot, air is injected into the airbag through the pipeline to make the airbag expand and fill the gap between the insertion block and the slot, so as to seal the gap between the slot and the insertion block. After inflation, when the airbag is filled with air, the second spring will pull the sealing ball to move downward and closely adhere to the opening at the top of the base, so as to block the pipeline, thus facilitating the staff to fix the leather sleeve outside the valve body. Description of the Drawings

[0033] Figure 1 It is a three-dimensional view of a valve body and a plunger pump proposed by the present invention;

[0034] Figure 2 It is a cross-sectional view of the valve seat body of a valve body and a plunger pump proposed by the present invention;

[0035] Figure 3 It is a three-dimensional view of the valve body of a valve body and a plunger pump proposed by the present invention;

[0036] Figure 4 It is a cross-sectional view of the first leather sleeve of a valve body and a plunger pump proposed by the present invention;

[0037] Figure 5 It is Figure 4 an enlarged view of part A in

[0038] Figure 6 It is a structural schematic diagram of the second leather sleeve of a valve body and a plunger pump proposed by the present invention;

[0039] Figure 7 It is a cross-sectional view of the pipeline of a valve body and a plunger pump proposed by the present invention;

[0040] Figure 8 It is a three-dimensional view of the fixing seat of a valve body and a plunger pump proposed by the present invention;

[0041] Figure 9 It is a cross-sectional view of the fixing seat of a valve body and a plunger pump proposed by the present invention.

[0042] Legend Explanation:

[0043] 1. Pump body; 2. Piston; 3. Valve seat body; 4. First spring; 5. Fixed frame; 6. Valve body body; 7. Valve claw; 8. First leather sleeve; 9. Second leather sleeve; 10. Fixed seat; 11. Slot; 12. Liquid sac; 13. Insert block; 14. Pipe; 15. Airbag; 16. Second spring; 17. Base; 18. Sealing ball; 19. Bolt; 20. Bump. Detailed implementation method

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment 1:

[0046] Referring to Figure 3 、 Figure 4 and Figure 5 , an embodiment provided by the present invention: A valve body includes a pump body 1, two valve body bodies 6 and two valve seat bodies 3. On one side of the bottom ends of the two valve body bodies 6, a first leather sleeve 8 is provided. On the other side of the bottom ends of the two valve body bodies 6, a second leather sleeve 9 is provided. On both the left and right ends of one side of the second leather sleeve 9, slots 11 are opened. An insert block 13 is inserted inside the slot 11. One end of the insert block 13 is fixedly connected to one side of the first leather sleeve 8. The insert block 13 is provided in a T-shaped structure.

[0047] When it is necessary to install the first leather sleeve 8 and the second leather sleeve 9 on the outside of the valve body body 6, the second leather sleeve 9 can be first placed on the outside of the valve body body 6, and then the first leather sleeve 8 is placed on the outside of the valve body body 6. At the same time, the insert block 13 is inserted into the slot 11 and the insert block 13 is inserted to the bottom, so that one side of the insert block 13 is in close contact with the inner side wall of the slot 11 to connect the first leather sleeve 8 and the second leather sleeve 9.

[0048] Referring to Figure 4 、 Figure 5 and Figure 6 , the inner side wall of the slot 11 is fixedly connected with an airbag 15. The bottom end of the airbag 15 is communicated with a pipe 14. One end of the pipe 14 penetrates through the inner bottom wall of the slot 11 and extends out of the slot 11.

[0049] After the insertion block 13 is inserted into the inside of the slot 11, air can be injected into the airbag 15 through the pipeline 14, so that the airbag 15 can expand and fill the gap between the insertion block 13 and the slot 11, realizing the sealing of the gap between the slot 11 and the insertion block 13. Since the insertion block 13 is set in a T-shaped structure, after the airbag 15 expands, the cavity inside the slot 11 will form a T-shaped structure matching the insertion block 13, realizing the fixation of the insertion block 13 inside the slot 11 and the fixed connection of the first leather sleeve 8 and the second leather sleeve 9.

[0050] Refer to Figure 7 , a base 17 is fixedly connected inside the pipeline 14. The base 17 is set in a cavity structure with openings at both the top and bottom ends. A second spring 16 is fixedly connected to the inner bottom wall of the base 17. One end of the second spring 16 is fixedly connected to a sealing ball 18. The diameter of the sealing ball 18 is larger than the inner diameter of the base 17, and the outer wall of the bottom of the sealing ball 18 is in close contact with the inner side wall of the top opening of the base 17.

[0051] When injecting air into the airbag 15 through the pipeline 14, the air will pass through the base 17 and push the sealing ball 18 to move upward, separating the sealing ball 18 from the top of the base 17, so that the air can flow through the base 17 inside the pipeline 14 and enter the airbag 15; after the airbag 15 is filled with air, the second spring 16 will pull the sealing ball 18 to move downward and be in close contact with the opening at the top of the base 17, realizing the sealing of the opening at the top of the base 17 to prevent the air inside the airbag 15 from leaking from the pipeline 14.

[0052] Refer to Figure 4 and Figure 5 , the first leather sleeve 8 is fixedly connected with a plurality of uniformly distributed liquid sacs 12. The liquid sacs 12 are made of rubber with a relatively thin wall thickness, and liquid glue is stored inside the liquid sacs 12.

[0053] After the first leather sleeve 8 and the second leather sleeve 9 are placed at the bottom of the valve body 6, the first leather sleeve 8 and the second leather sleeve 9 can be mutually extruded, so that the liquid sacs 12 on one side of the first leather sleeve 8 are ruptured when being extruded, and the liquid glue inside the liquid sacs 12 flows between the first leather sleeve 8 and the second leather sleeve 9, adhesively bonding the first leather sleeve 8 and the second leather sleeve 9, realizing the further fixation of the first leather sleeve 8 and the second leather sleeve 9. The first leather sleeve 8 and the second leather sleeve 9 are mutually extruded, and the generated pressure is sufficient to break the liquid sacs 12. For example, for the bonding of the Apple iPhone screen, micro matrix liquid sacs are embedded between the screen and the frame, and the UV curable glue is encapsulated. By uniformly extruding the screen, the liquid sacs are ruptured one by one to release the glue, bonding the screen and the frame.

[0054] Embodiment 2:

[0055] Refer to Figure 8 and Figure 9, a fixing seat 10 is fixedly connected to the middle of the bottom end of the valve body 6. The fixing seat 10 is arranged as a cavity structure with an opening at the bottom. A valve claw 7 is inserted into the fixing seat 10. Both sides of the top end of the valve claw 7 are fixedly connected with convex blocks 20. A bolt 19 is threadedly connected to the bottom end of the convex block 20. One end of the bolt 19 penetrates through the inner bottom wall of the fixing seat 10.

[0056] When the valve claw 7 needs to be replaced, the bolt 19 can be rotated to remove the bolt 19 from the inside of the convex block 20, and then the valve claw 7 is rotated so that the convex block 20 at the top end of the valve claw 7 coincides with the opening at the bottom of the fixing seat 10, and then the valve claw 7 is pulled downward so that the convex block 20 exits the inside of the fixing seat 10, realizing the replacement of the valve claw 7. When fixing the valve body 6 and the valve claw 7, the valve claw 7 is inserted into the inside of the base 17 through the opening of the base 17, and then the valve claw 7 is rotated so that the convex block 20 at the top end of the valve claw 7 coincides with the opening at the bottom of the fixing seat 10, and the bolt 19 is passed through the inner bottom wall of the base 17 and extended into the inside of the convex block 20 and then tightened to fix the valve body 6 and the valve claw 7.

[0057] Refer to Figure 1 and Figure 2 , the valve body 6 is arranged at the top end of the valve seat body 3. The valve seat body 3 is arranged as a cavity structure with notches at both the top and bottom ends. A fixing frame 5 is fixedly connected to the top end of the valve seat body 3. A first spring 4 is fixedly connected to the inner bottom wall of the fixing frame 5. One end of the first spring 4 is fixedly connected to the valve body 6. The outer side of the valve claw 7 is in close contact with the inner side wall of the valve seat body 3.

[0058] The first spring 4 pushes the valve body 6 to move on the top of the valve seat body 3, and makes the bottom end of the valve body 6 in close contact with the top of the valve seat body 3, and uses the first leather sleeve 8 and the second leather sleeve 9 at the bottom end of the valve body 6 to block the gap between the valve body 6 and the top of the valve seat body 3, so as to realize the sealing of the notch at the top end of the valve seat body 3. And when the first spring 4 pushes the valve body 6 to move, the valve claw 7 will slide inside the valve seat body 3. Because the outer side of the valve claw 7 is in close contact with the inner side wall of the valve seat body 3, the valve seat body 3 can guide the valve body 6 when sliding, reducing the shaking and offset of the valve body 6 during the movement process.

[0059] Refer to Figure 1, Embodiment Three: A plunger pump, including a pump body 1, through holes are provided at both the top and bottom ends of the pump body 1, and two valve seat bodies 3 are fixedly connected inside the through holes. A piston 2 is slidably connected inside the pump body 1, and the outer side wall of the piston 2 is in close contact with the inner side wall of the pump body 1. When the piston 2 slides towards one side of the pump body 1, a negative pressure will be generated inside the pump body 1, causing the valve body 6 at the bottom of the pump body 1 to move upward, separating the valve body 6 from the valve seat body 3, so that the liquid outside the pump body 1 can flow into the pump body 1 through the valve seat body 3 at the bottom of the pump body 1. When the piston 2 moves towards the side close to the pump body 1, the liquid inside the pump body 1 will be squeezed. At this time, the valve body 6 at the bottom of the pump body 1 will move towards the direction close to the valve body 6 under the push of the liquid and the first spring 4, making the valve body 6 closely adhere to the top of the valve seat body 3 to block the through hole at the bottom of the pump body 1. At the same time, the liquid inside the pump body 1 will push the valve body 6 at the top of the pump body 1 to move upward and separate from the valve seat body 3, enabling the liquid inside the pump body 1 to flow out from inside the valve seat body 3 at the top of the pump body 1.

[0060] Working principle: Place the second leather sleeve 9 outside the valve body 6, then place the first leather sleeve 8 outside the valve body 6. At the same time, make the insertion block 13 enter the slot 11. Inject air into the airbag 15 through the pipeline 14, so that the airbag 15 can expand and fill the gap between the insertion block 13 and the slot 11, realizing the sealing of the gap between the slot 11 and the insertion block 13. Since the insertion block 13 is set in a T-shaped structure, after the airbag 15 expands, the cavity inside the slot 11 will form a T-shaped structure matching the insertion block 13, realizing the fixation of the insertion block 13 inside the slot 11 and connecting and fixing the first leather sleeve 8 and the second leather sleeve 9. When the airbag 15 is filled with air, the second spring 16 will pull the sealing ball 18 to move downward and closely adhere to the opening at the top of the base 17, realizing the sealing of the opening at the top of the base 17 to prevent the air inside the airbag 15 from leaking through the pipeline 14; when it is necessary to replace the valve claw 7, the bolt 19 can be rotated to take the bolt 19 out of the convex block 20, and then the valve claw 7 is rotated. When the convex block 20 at the top of the valve claw 7 coincides with the opening at the bottom of the fixed seat 10, pull the valve claw 7 downward, and the convex block 20 exits the inside of the fixed seat 10, realizing the replacement of the valve claw 7. Then, the bolt 19 and the valve claw 7 are reset, and the valve claw 7 is connected to the valve body 6.

[0061] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve body, characterized in that: It includes two valve body bodies (6) and two valve seat bodies (3), The two valve bodies (6) are each provided with a leather cover (8) on one side of the bottom end, and the two valve bodies (6) are each provided with a leather cover (9) on the other side of the bottom end; A plurality of slots (11) are provided on one side of the two leather cases (9); A plurality of plug blocks (13) are fixedly connected to one side of the two leather cases (8); one side of the plurality of plug blocks (13) is plugged into the slot (11) to connect the leather case (8) and the leather case (9); A plurality of air bags (15) are fixedly connected to the inner wall of the slot (11); the bottom ends of the plurality of air bags (15) are connected to a pipe (14); one end of the pipe (14) passes through the inner bottom wall of the slot (11); A plurality of bases (17) are fixedly connected to the inner wall of the pipe (14); A plurality of springs (16) are fixedly connected to the inner bottom wall of the base (17); the other ends of the plurality of springs (16) are fixedly connected to sealing balls (18) for sealing the pipeline (14).

2. A valve body according to claim 1, characterized in that: The plurality of valve bodies (6) are arranged on the top of the valve seat body (3), the top of the plurality of valve seat bodies (3) are fixedly connected with a fixing frame (5), the bottom of the plurality of fixing frames (5) are fixedly connected with a spring one (4), and one end of the plurality of springs one (4) is fixedly connected to the top of the valve body body (6) for providing elastic force to the valve body body (6).

3. A valve body according to claim 2, characterized in that: A fixing seat (10) is fixedly connected to the middle of the bottom end of the plurality of valve bodies (6); the plurality of fixing seats (10) are configured as a cavity structure with an opening at the bottom; a plurality of valve claws (7) are inserted inside the plurality of fixing seats (10); both sides of the top ends of the plurality of valve claws (7) are fixedly connected with protrusions (20); the bottom ends of the plurality of protrusions (20) are threadedly connected with bolts (19); the other ends of the plurality of bolts (19) pass through the inner bottom wall of the fixing seat (10) to fix the valve claws (7).

4. A valve body according to claim 3, characterized in that: The plurality of leather cases (8) are fixedly connected to a plurality of evenly distributed liquid capsules (12), wherein sealant is stored inside the liquid capsules (12).

5. A valve body according to claim 4, characterized in that: The outer sides of the plurality of valve claws (7) are in close contact with the inner side wall of the valve seat body (3) to guide the valve body body (6).

6. A valve body according to claim 5, characterized in that: The plurality of insert blocks (13) are configured as a T-shaped structure so that the airbag (15) can be engaged with the insert blocks (13).

7. A valve body according to claim 6, characterized in that: A plurality of bases (17) are provided with a cavity structure with openings at both ends of the top and bottom.

8. A valve body according to claim 7, characterized in that: The diameter of the sealing ball (18) is greater than the inner diameter of the base (17), and the bottom end of the sealing ball (18) is in close contact with the inner side wall of the top opening of the base (17).

9. A plunger pump, characterized in that: It comprises a pump body (1), wherein through holes are provided on both sides of the top and bottom of one end of the pump body (1), and the two valve seat bodies (3) are fixedly connected inside the through holes.

10. A plunger pump according to claim 9, characterized in that: A piston (2) slides inside the pump body (1).

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