Tool for lifting and mounting diaphragm pump valve seat

Abstract

The utility model belongs to the technical field of diaphragm pump maintenance, and particularly discloses a tool for lifting and mounting a diaphragm pump valve seat, which comprises two symmetrically arranged cranks, the lower parts of the two cranks are hinged, the upper end parts of the cranks are respectively hinged with the lower end parts of correspondingly arranged connecting rods, and the upper ends of the connecting rods are hinged. Lifting lugs are fixedly connected to the lower ends of the cranks correspondingly, the lifting lugs are symmetrically arranged, and the lifting lugs can stretch into the valve seat to abut against the inner circle face of the valve seat. The included angle between the two connecting rods can be decreased and drive the upper ends of the two cranks to rotate oppositely to adjust the distance between the lifting lugs to be increased, or the included angle between the two connecting rods can be increased and drive the upper ends of the two cranks to rotate oppositely to adjust the distance between the lifting lugs to be decreased. The requirement for quick disassembly and assembly of the diaphragm pump cone valve is met, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm pump maintenance, and specifically discloses a tool for lifting and installing a valve seat of a diaphragm pump. Background Art

[0002] In the metallurgical mining industry, hydraulic diaphragm pumps are used for long-distance transportation. In the mineral processing process, hydraulic diaphragm pumps generally control the inlet and outlet of ore materials through the cone valve housing, valve core, rubber seal and valve seat. The diaphragm pump generally transports water or materials by alternating the inlet valve and outlet valve. Each delivery requires the opening and closing of the inlet and outlet valves. In addition, the high-pressure delivery and material wear cause the diaphragm pump cone valve seat to be easily worn. Due to the continuous work of the diaphragm pump in the production process of the metallurgical industry, the equipment has a high working intensity. In order to meet the production needs, the valve seat and other wearing parts need to be disassembled, inspected and replaced as efficiently as possible. The existing diaphragm pump valve seat lifting and installation tools are about 65kg, which are very bulky and inconvenient to operate, making the disassembly, inspection and replacement of the diaphragm pump valve seat time-consuming and labor-intensive, and cannot meet the requirements of rapid disassembly and assembly of the diaphragm pump cone valve, affecting production efficiency. Summary of the invention

[0003] In order to solve the problems in the background technology, the utility model discloses a tool for lifting and installing a diaphragm pump valve seat, including a crank and a lifting lug, which is light and handy, easy to use, meets the requirements of rapid disassembly and assembly of the diaphragm pump cone valve, and improves production efficiency.

[0004] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0005] A tool for lifting and installing a diaphragm pump valve seat, comprising two symmetrically arranged cranks, the lower parts of the two cranks are hingedly connected, the upper ends of the cranks are respectively hingedly connected to the lower ends of correspondingly arranged connecting rods, the upper ends of the connecting rods are hingedly connected, and the lower ends of the cranks are respectively fixedly connected with lifting ears, the lifting ears are symmetrically arranged, the lifting ears can be extended into the valve seat and abut against the inner circular surface of the valve seat, under the action of external force, the angle between the two connecting rods can be reduced and the upper ends of the two cranks can be driven to rotate towards each other to increase the spacing between the lifting ears, or the angle between the two connecting rods can be increased and the upper ends of the two cranks can be driven to rotate away from each other to decrease the spacing between the lifting ears.

[0006] Furthermore, in the tooling for lifting and installing the diaphragm pump valve seat, the lifting ears respectively include abutment sections, and the abutment sections are arc-shaped block structures. When lifting and installing the valve seat, under the action of external force, the lifting ears can extend into the valve seat so that the outer side surface of the abutment section abuts against the inner circular surface of the valve seat to lift the valve seat.

[0007] Furthermore, in the tooling for lifting and installing the diaphragm pump valve seat, the lifting ears also include arc-shaped supporting sections integrally formed with the corresponding abutting sections, and the angle between the abutting end and the supporting end is an obtuse angle. When lifting and installing the valve seat, under the action of external force, the lifting ears can extend into the valve seat so that the outer side surfaces of the abutting section and the supporting section respectively abut against the inner circular surface and the lower end surface of the valve seat to lift the valve seat.

[0008] Furthermore, the tooling for lifting and installing the diaphragm pump valve seat is also hingedly connected with a lifting ring between the upper ends of the connecting rods.

[0009] Furthermore, the tooling for lifting and installing the diaphragm pump valve seat, the crank comprises an upper crank rod and a lower crank rod, the lower end of the upper crank rod is fixedly connected to the upper end of the lower crank rod, a hinge hole for passing a hinge shaft is provided at the connection between the upper crank rod and the lower crank rod, the upper end of the upper crank rod extends obliquely upward, and the lower end of the lower crank rod extends obliquely downward.

[0010] Furthermore, the tooling for lifting and installing the diaphragm pump valve seat has wear-resistant rubber wrapped around the outside of the lifting ear.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The tooling for lifting and installing the valve seat of a diaphragm pump disclosed by the utility model comprises two symmetrically arranged cranks, the lower parts of the two cranks are hingedly connected, the upper ends of the cranks are respectively hingedly connected to the lower ends of correspondingly arranged connecting rods, the upper ends of the connecting rods are hingedly connected, and the lower ends of the cranks are respectively fixedly connected with lifting ears, the lifting ears are symmetrically arranged, the lifting ears can extend into the valve seat and abut against the inner circular surface of the valve seat to lift the valve seat, and under the action of external force, the angle between the two connecting rods can be reduced and drive the upper ends of the two cranks to rotate toward each other to increase the spacing between the lifting ears, or the angle between the two connecting rods can be increased and drive the upper ends of the two cranks to rotate away from each other to decrease the spacing between the lifting ears. The tooling for lifting and installing the valve seat of a diaphragm pump disclosed by the utility model is light and dexterous, easy to use, meets the requirements for rapid disassembly and assembly of the cone valve of the diaphragm pump, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of the tooling for lifting and installing the valve seat of the diaphragm pump of the utility model. Figure 1 ;

[0014] Figure 2 This is a three-dimensional structural diagram of the tooling for lifting and installing the valve seat of the diaphragm pump of the utility model. Figure 2 ;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the crank in the utility model;

[0016] Figure 4It is a schematic diagram of the three-dimensional structure of the first lifting ear in the utility model;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the second lifting ear in the utility model;

[0018] In the above figure: 1-lifting ring; 2-first hinge axis; 3-connecting rod; 4-second hinge axis; 5-crank; 5.1-screw hole; 5.2-upper bent rod; 5.3-hinge hole; 5.4-lower bent rod; 6-third hinge axis; 7-first lifting ear; 7.1-first abutment section; 7.2-first supporting section; 8-second lifting ear; 8.1-second abutment section; 8.2-second supporting section. DETAILED DESCRIPTION

[0019] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0020] Combined with Figure 1-5, the utility model is described in detail a tool for lifting and installing a diaphragm pump valve seat, including two cranks 5 symmetrically arranged, the lower parts of the two cranks 5 are hingedly connected by a third hinge shaft 6, the upper ends of the cranks 5 are respectively hingedly connected to the lower ends of the corresponding connecting rods 3 through the second hinge shaft 4, the upper ends of the connecting rods 3 are hingedly connected by the first hinge shaft 2, the first hinge shaft 2, the connecting rod 3, the second hinge shaft 4, the cranks 5 and the third hinge shaft 6 together form a parallelogram, at the lower ends of the cranks 5 The first and second lifting ears 7 and 8 are respectively fixedly connected to the valve seat, and the first and second lifting ears 7 and 8 are symmetrically arranged. The first and second lifting ears 7 and 8 can extend into the valve seat and abut against the inner circular surface of the valve seat. Under the action of external force, the angle between the two connecting rods 3 can be reduced and the upper ends of the two cranks 5 can be driven to rotate toward each other to adjust the distance between the lifting ears to increase, or the angle between the two connecting rods 3 can be increased and the upper ends of the two cranks 5 can be driven to rotate away from each other to adjust the distance between the lifting ears to decrease, and the lifting installation When installing the diaphragm pump valve seat, first advance the upper end of the connecting rod 3 so that the first lifting ear 7 and the second lifting ear 8 extend into the valve seat, use a lifting device to lift the upper hinged ends of the two connecting rods 3, and the angle between the two connecting rods 3 becomes smaller. At the same time, drive the upper ends of the two cranks 5 to rotate toward each other to adjust the spacing between the lifting ears to increase, so that the first lifting ear 7 and the second lifting ear 8 abut against the inner circular surface of the valve seat. Under the action of friction, lift the valve seat and put it steadily into the valve cavity to complete the installation. Then, use a lifting device to lift the upper ends of the two connecting rods 3. The hinged end drops, the angle between the two connecting rods 3 becomes larger and drives the upper ends of the two cranks 5 to rotate opposite to each other to adjust the spacing between the lifting ears to become smaller, the first lifting ear 7 and the second lifting ear 8 are separated from the valve seat, and the first lifting ear 7 and the second lifting ear 8 can be lifted out of the valve seat by the connecting rod 3 and the crank 5. When disassembling the valve seat, the above-mentioned installation actions can be performed in reverse order. The tooling for lifting and installing the diaphragm pump valve seat disclosed by the utility model is light and flexible, easy to use, meets the requirements of rapid disassembly and assembly of the diaphragm pump cone valve, and improves production efficiency.

[0021] As an optional design, the tooling for lifting and installing the diaphragm pump valve seat is preferably used, wherein the first lifting ear 7 includes a first abutting section 7.1, and the second lifting ear 8 includes a second abutting section 8.1. The first abutting section 7.1 and the second abutting section 8.1 are symmetrically arranged arc-shaped block structures. When lifting and installing the valve seat, under the action of external force, the lifting ear can extend into the valve seat so that the outer side surfaces of the first abutting section 7.1 and the second abutting section 8.1 abut against the inner circular surface of the valve seat to lift the valve seat.

[0022] As an optional design, the tooling for lifting and installing the diaphragm pump valve seat is preferably used, the first lifting ear 7 also includes an arc-shaped block-shaped first supporting segment 7.2 integrally formed with the first abutting segment 7.1, the second lifting ear 8 also includes an arc-shaped block-shaped second supporting segment 8.2 integrally formed with the second abutting segment 8.1, the first supporting segment 7.2 and the second supporting segment 8.2 are symmetrically arranged, the angles between the first abutting segment 7.1 and the first supporting segment 7.2 and between the second abutting segment 8.1 and the second supporting segment 8.2 are both obtuse angles, when lifting and installing the valve seat, under the action of external force, the lifting ear can extend into the valve seat, so that the outer side surfaces of the first abutting segment 7.1 and the second abutting segment 8.1 are respectively abutted and contacted with the inner circular surface of the valve seat, the first supporting segment 7.2 and the second supporting segment 8.2 extend to the bottom of the valve seat and respectively abut against the lower end surface of the valve seat, and finally the valve seat is lifted.

[0023] As an optional design, the tooling for lifting and installing the diaphragm pump valve seat is preferably provided with a lifting ring 1 hingedly connected between the upper ends of the connecting rod 3, the lifting ring 1 is sleeved on the first hinge shaft 2 and rotatably connected to the first hinge shaft 2, and the provision of the lifting ring 1 facilitates the use of lifting equipment to lift the tooling for lifting and installing the diaphragm pump valve seat of the utility model.

[0024] As an optional design, the tooling for lifting and installing the diaphragm pump valve seat is preferably used, and the crank 5 includes an upper bent rod 5.2 and a lower bent rod 5.4, the lower end of the upper bent rod 5.2 is fixedly connected to the upper end of the lower bent rod 5.4, and a hinge hole 5.3 for passing the hinge shaft is provided at the connection between the upper bent rod 5.2 and the lower bent rod 5.4, and the third hinge shaft 6 is passed through the hinge hole 5.3, the upper end of the upper bent rod 5.2 extends upward at an angle, and a screw hole 5.1 for passing the second hinge shaft 4 is provided at the upper end of the upper bent rod 5.2, and the lower end of the lower bent rod 5.4 extends downward at an angle, and the angle between the upper bent rod 5.2 and the lower bent rod 5.4 is an obtuse angle.

[0025] As an optional design, the tooling for lifting and installing the diaphragm pump valve seat is preferably provided with wear-resistant rubber wrapped on the outside of the lifting ear to protect the valve seat and prevent the lifting ear from scratching the valve seat when in contact with the valve seat.

[0026] The working process of the utility model is as follows:

[0027] When installing the valve seat, first place the repaired valve seat on the bracket, first lift the two connecting rods 3 by hand, so that the first lifting ear 7 and the second lifting ear 8 extend into the valve seat, use the lifting equipment to lift the lifting ring 1 and lift it up, and the first hinge shaft 2 rises after being subjected to the upward force, and drives the upper ends of the two connecting rods 3 to rotate and rise around the first hinge shaft 2 to reduce the angle between the two connecting rods 3, and the connecting rod 3 drives the upper ends of the two cranks 5 to rotate toward each other to adjust the spacing between the lifting ears to become larger, the first lifting ear 7 and the second lifting ear 8 are in contact with the valve seat to lift the valve seat and put it steadily into the valve cavity to complete the installation, and then, use the lifting equipment to lift the lifting ring 1 and slightly lower it, and the first hinge shaft 2 descends, and at the same time drives the upper ends of the two connecting rods 3 to rotate around the first hinge shaft 2 and descend to increase the angle between the two connecting rods 3 and drive the upper ends of the two cranks 5 to rotate opposite to each other to adjust the spacing between the lifting ears to become smaller, so that the first lifting ear 7 and the second lifting ear 8 are separated from the valve seat. Finally, lift the diaphragm pump valve seat lifting and installation tool disclosed in the utility model to lift the first lifting ear 7 and the second lifting ear 8 out of the valve seat. When disassembling the valve seat, reverse the above installation actions. The diaphragm pump valve seat lifting and installation tool disclosed in the utility model is light and flexible, easy to use, meets the requirements of rapid disassembly and assembly of the diaphragm pump cone valve, and improves production efficiency.

[0028] The above description is only an application implementation method of the present utility model, but the protection scope of the present utility model is not limited to this, and the right scope of the present utility model cannot be limited by this. Any equivalent changes made according to the technical solution of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tool for lifting and installing a diaphragm pump valve seat, characterized by: It includes two cranks symmetrically arranged, the lower parts of the two cranks are hingedly connected, the upper ends of the cranks are respectively hingedly connected to the lower ends of the correspondingly arranged connecting rods, the upper ends of the connecting rods are hingedly connected, and the lower ends of the cranks are respectively fixedly connected with lifting ears, the lifting ears are symmetrically arranged, and the lifting ears can be extended into the valve seat to abut against the inner circular surface of the valve seat.

2. The tooling for lifting and installing the valve seat of a diaphragm pump according to claim 1 is characterized by: The lifting ears respectively include abutment sections, which are arc-shaped block structures. When lifting and installing the valve seat, under the action of external force, the lifting ears can extend into the valve seat so that the outer side surface of the abutment section abuts against the inner circular surface of the valve seat to lift the valve seat.

3. The tooling for lifting and installing the valve seat of a diaphragm pump according to claim 1 or 2, characterized in that: The lifting ears also include arc-shaped supporting sections integrally formed with the corresponding abutting sections, and the angle between the abutting end and the supporting end is an obtuse angle. When lifting and installing the valve seat, under the action of external force, the lifting ears can extend into the valve seat so that the outer side surfaces of the abutting section and the supporting section respectively abut against the inner circular surface and the lower end surface of the valve seat to lift the valve seat.

4. The tooling for lifting and installing the valve seat of a diaphragm pump according to claim 3 is characterized by: A lifting ring is also hingedly connected between the upper ends of the connecting rods.

5. The tooling for lifting and installing the valve seat of a diaphragm pump according to claim 3 is characterized by: The cranks include an upper crank rod and a lower crank rod, wherein the lower end of the upper crank rod is fixedly connected to the upper end of the lower crank rod, and a hinge hole for passing a hinge shaft is provided at the connection between the upper crank rod and the lower crank rod, the upper end of the upper crank rod extends obliquely upward, and the lower end of the lower crank rod extends obliquely downward.

6. The tooling for lifting and installing the valve seat of a diaphragm pump according to claim 3 is characterized by: The outside of the lifting lug is wrapped with wear-resistant rubber.

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