Reciprocating type feeding pump capable of preventing diaphragm from being damaged

Abstract

The reciprocating feeding pump capable of preventing the diaphragm from being damaged comprises a pump head, the left side of the pump head is connected with a gland through a bolt, the top and the bottom of the pump head are respectively provided with a pump head through hole, and the middle of the right side of the gland is fixedly connected with a sleeve. The pump head, the gland, the pump head through hole, the sleeve, the through opening, the diaphragm, the first buffer assembly, the partition plate, the flow guide block, the material passing opening, the first buffer sleeve spring, the first buffer block, the second buffer assembly, the fixing plate, the check block, the movable rod, the second buffer block and the second buffer sleeve spring are matched with one another, and the effect of preventing the diaphragm from being damaged is achieved; when fluid rapidly and continuously penetrates through the diaphragm, the diaphragm can be effectively buffered, so that the diaphragm is not prone to being damaged, and normal use of the reciprocating pump is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of reciprocating pumps, in particular to a reciprocating feed pump capable of preventing a diaphragm from being damaged. Background Art

[0002] Reciprocating pumps include piston pumps, metering pumps and diaphragm pumps, collectively known as reciprocating pumps. It is a type of positive displacement pump and is widely used. Reciprocating pumps are conveying machines that directly provide energy to liquids in the form of pressure energy through the reciprocating motion of the piston. According to the driving mode, reciprocating pumps are divided into two categories: motor pumps (driven by electric motors) and direct-acting pumps (driven by steam, gas or liquid).

[0003] At present, as for the patent with application number CN202011080561.9, the present invention relates to the technical field of high-pressure reciprocating pumps, and in particular to a high-performance high-pressure reciprocating pump, comprising a base, a chassis is fixedly installed on the right end of the top of the base, a crankshaft is fixedly installed on the right end of the inner cavity of the chassis, a connecting rod is fixedly installed on one side of the crankshaft, an intermediate rod is fixedly installed on one side of the connecting rod, a plunger is fixedly installed on one side of the intermediate rod, and a diaphragm is fixedly installed on one side of the plunger; the present invention solves the problems of large unit vibration, sleeve spring breakage, and unstable outlet flow rate that often occur during the operation of the existing high-pressure reciprocating pump through the arrangement of a base, a chassis, an intermediate rod, a plunger, a guide rod, a two-valve group, a valve cover, a valve seat, a fixed guide sleeve, a diaphragm, a sleeve spring guide sleeve, a crankshaft, a large sleeve spring, a small sleeve spring, a one-way sealing seat and a sealing surface, which not only has low performance, but also reduces its working efficiency and use effect, thereby bringing inconvenience to the user's use and work.

[0004] However, in actual use, the above patent has the following defects: when the fluid passes through the diaphragm quickly and continuously, the diaphragm cannot be effectively buffered, causing the diaphragm to be easily damaged, which greatly affects the normal use of the reciprocating pump. For this reason, we propose a reciprocating feed pump that can prevent diaphragm damage. Utility Model Content

[0005] The utility model aims to provide a reciprocating feed pump capable of preventing diaphragm damage, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a reciprocating feed pump capable of preventing diaphragm damage, comprising:

[0007] Pump head;

[0008] A gland, the left side of the pump head is connected with a gland by bolts;

[0009] A pump head through hole, wherein the top and the bottom of the pump head are both provided with a pump head through hole;

[0010] A sleeve, a sleeve is fixedly connected to the middle of the right side of the gland, the right side of the sleeve passes through the pump head and extends to the inside of the pump head, the sleeve and the pump head are movably connected, and openings are opened at the top and bottom of the sleeve and at positions corresponding to the through holes of the pump head;

[0011] A diaphragm, the right side of the sleeve is fixedly connected with the diaphragm, and the surface of the diaphragm is in active contact with the inner wall of the pump head;

[0012] A first buffer component, wherein the first buffer component is arranged on the right side inside the pump head;

[0013] A second buffer component is provided inside the sleeve.

[0014] Furthermore, the first buffer assembly includes a partition, a guide block, a material passage, a first buffer sleeve spring and a first buffer block, and a partition is fixedly connected inside the pump head and located on the right side of the diaphragm.

[0015] Furthermore, a guide block is fixedly installed in the middle of the right side of the partition, material passage openings are opened at the upper and lower parts of the right side of the partition, a first buffer sleeve spring is fixedly connected to the middle of the left side of the partition, and a first buffer block is fixedly connected to the left end of the first buffer sleeve spring.

[0016] Furthermore, the second buffer assembly includes a fixed plate, a stopper, a movable rod, a second buffer block and a second buffer sleeve spring, and the inner wall of the sleeve and the right side of the bottom are both fixedly connected with the fixed plate.

[0017] Furthermore, a stopper is movably connected to the left side of the fixed plate, and two movable rods are fixedly connected to the right side of the stopper.

[0018] Furthermore, the right end of the movable rod passes through the fixed plate and extends to the outside of the fixed plate, the movable rod is movably connected to the fixed plate, and the right ends of the two movable rods are fixedly connected to the same second buffer block.

[0019] Furthermore, a second buffer sleeve spring is sleeved on the surface of the movable rod and located between the second buffer block and the fixed plate.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] The utility model achieves the effect of preventing the diaphragm from being damaged by the cooperation of the pump head, the pressure cover, the pump head through hole, the sleeve, the through port, the diaphragm, the first buffer component, the partition, the guide block, the material through port, the first buffer sleeve spring, the first buffer block, the second buffer component, the fixed plate, the block, the movable rod, the second buffer block and the second buffer sleeve spring. When the fluid passes through the diaphragm rapidly and continuously, the diaphragm can be effectively buffered, so that the diaphragm is not easily damaged, thereby avoiding affecting the normal use of the reciprocating pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural cross-sectional view of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the casing of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the first buffer component of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the second buffer component of the utility model.

[0026] In the figure: 1, pump head; 2, gland; 3, pump head through hole; 4, sleeve; 5, through port; 6, diaphragm; 7, first buffer assembly; 701, partition; 702, guide block; 703, feed port; 704, first buffer sleeve spring; 705, first buffer block; 8, plunger; 9, second buffer assembly; 901, fixed plate; 902, stop block; 903, movable rod; 904, second buffer block; 905, second buffer sleeve spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-4 A reciprocating feed pump capable of preventing diaphragm damage comprises a pump head 1, a gland 2 is connected to the left side of the pump head 1 by bolts, a pump head through hole 3 is provided at the top and bottom of the pump head 1, a sleeve 4 is fixedly connected to the middle of the right side of the gland 2, the right side of the sleeve 4 passes through the pump head 1 and extends to the inside of the pump head 1, the sleeve 4 and the pump head 1 are movably connected, a through hole 5 is provided at the top and bottom of the sleeve 4 and at a position corresponding to the pump head through hole 3, a diaphragm 6 is fixedly connected to the right side of the sleeve 4, the surface of the diaphragm 6 is movably in contact with the inner wall of the pump head 1, a first buffer component 7 is provided on the right side of the inside of the pump head 1, a second buffer component 9 is provided inside the sleeve 4, and a plunger 8 is movably connected to the right side of the pump head 1.

[0031] Specifically, the first buffer assembly 7 includes a partition 701 , a guide block 702 , a material passage 703 , a first buffer sleeve spring 704 and a first buffer block 705 . The partition 701 is fixedly connected inside the pump head 1 and located on the right side of the diaphragm 6 .

[0032] During the specific implementation, a guide block 702 is fixedly installed in the middle of the right side of the partition 701, and material passage ports 703 are opened at the upper and lower parts of the right side of the partition 701. A first buffer spring 704 is fixedly connected to the middle of the left side of the partition 701, and a first buffer block 705 is fixedly connected to the left end of the first buffer spring 704.

[0033] Specifically, the second buffer assembly 9 includes a fixed plate 901 , a stopper 902 , a movable rod 903 , a second buffer block 904 and a second buffer sleeve spring 905 . The inner wall and the right side of the bottom of the sleeve 4 are fixedly connected with the fixed plate 901 .

[0034] In a specific implementation, a stopper 902 is movably connected to the left side of the fixed plate 901 , and two movable rods 903 are fixedly connected to the right side of the stopper 902 .

[0035] Specifically, the right end of the movable rod 903 passes through the fixed plate 901 and extends to the outside of the fixed plate 901 . The movable rod 903 is movably connected to the fixed plate 901 . The right ends of the two movable rods 903 are fixedly connected to the same second buffer block 904 .

[0036] During specific implementation, a second buffer sleeve spring 905 is sleeved on the surface of the movable rod 903 and located between the second buffer block 904 and the fixed plate 901 .

[0037] In practical application: when the plunger 8 moves to the right, the diaphragm 6 is bent and deformed to the right according to the hydraulic principle, so that the diaphragm 6 squeezes the first buffer block 705 and the first buffer sleeve spring 704 for buffering; when the plunger 8 moves to the left, the hydraulic oil pushes the diaphragm 6 to bend and deform to the left, so that the diaphragm 6 squeezes the second buffer block 904 for buffering, and then the second buffer block 904 drives the movable rod 903 and the stopper 902 to move to the left, thereby squeezing the second buffer sleeve spring 905 for buffering. Through the above steps, the diaphragm 6 can be well buffered, so that the diaphragm 6 can be effectively prevented from being damaged.

[0038] All components in the present invention are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, standard parts used in the present application documents can be purchased from the market, and each component in the present application document can be customized according to the description in the specification and drawings. The specific connection method of each component adopts conventional means such as mature bolts, rivets, welding, etc. in the prior art, and machinery, parts and equipment adopt conventional models in the prior art.

[0039] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the working principle, and the electrical connection between the electrical components should be completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The utility model mainly introduces the working principle and process, and no longer explains the electrical control.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating feed pump capable of preventing diaphragm damage, characterized in that: include: Pump head (1); A gland (2), the left side of the pump head (1) is connected to the gland (2) via bolts; A pump head through hole (3), wherein the top and bottom of the pump head (1) are both provided with a pump head through hole (3); A sleeve (4), the sleeve (4) is fixedly connected to the middle part of the right side of the gland (2), the right side of the sleeve (4) passes through the pump head (1) and extends to the inside of the pump head (1), the sleeve (4) and the pump head (1) are movably plugged, and openings (5) are provided at the top and bottom of the sleeve (4) and at positions corresponding to the pump head through hole (3); A diaphragm (6), the right side of the sleeve (4) is fixedly connected with the diaphragm (6), and the surface of the diaphragm (6) is in active contact with the inner wall of the pump head (1); A first buffer component (7), wherein the first buffer component (7) is arranged on the right side inside the pump head (1); A second buffer component (9), a second buffer component (9) is arranged inside the sleeve (4).

2. A reciprocating feed pump capable of preventing diaphragm damage according to claim 1, characterized in that: The first buffer assembly (7) comprises a partition (701), a guide block (702), a material passage (703), a first buffer sleeve spring (704) and a first buffer block (705); the partition (701) is fixedly connected inside the pump head (1) and located on the right side of the diaphragm (6).

3. A reciprocating feed pump capable of preventing diaphragm damage according to claim 2, characterized in that: A guide block (702) is fixedly installed in the middle of the right side of the partition (701), and material passage openings (703) are opened at the upper and lower sides of the right side of the partition (701). A first buffer sleeve spring (704) is fixedly connected to the middle of the left side of the partition (701), and a first buffer block (705) is fixedly connected to the left end of the first buffer sleeve spring (704).

4. A reciprocating feed pump capable of preventing diaphragm damage according to claim 3, characterized in that: The second buffer assembly (9) comprises a fixed plate (901), a stopper (902), a movable rod (903), a second buffer block (904) and a second buffer sleeve spring (905); the inner wall and the right side of the bottom of the sleeve (4) are both fixedly connected to the fixed plate (901).

5. A reciprocating feed pump capable of preventing diaphragm damage according to claim 4, characterized in that: The left side of the fixed plate (901) is movably connected to a stopper (902), and the right side of the stopper (902) is fixedly connected to two movable rods (903).

6. A reciprocating feed pump capable of preventing diaphragm damage according to claim 5, characterized in that: The right end of the movable rod (903) passes through the fixed plate (901) and extends to the outside of the fixed plate (901), the movable rod (903) is movably connected to the fixed plate (901), and the right ends of the two movable rods (903) are fixedly connected to the same second buffer block (904).

7. A reciprocating feed pump capable of preventing diaphragm damage according to claim 6, characterized in that: A second buffer sleeve spring (905) is sleeved on the surface of the movable rod (903) and located between the second buffer block (904) and the fixed plate (901).

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