Disassembling and assembling device for one-way valve of diaphragm pump

Abstract

The invention relates to a diaphragm pump one-way valve dismounting device which comprises a base (11), a positioning plate (13), supporting plates (14) and a one-way valve 12, the two supporting plates are welded to the base, and the positioning plate is connected with the supporting plates through bolts. According to the technical scheme, a set of diaphragm pump one-way valve dismounting device is designed and manufactured to complete replacement operation of a valve element of the one-way valve, and time and labor are saved during operation.

Description

Technical Field

[0001] The invention relates to a disassembly and assembly device, in particular to a disassembly and assembly device for a one-way valve of a diaphragm pump, and belongs to the technical field of mining machinery structure design. Background Art

[0002] Diaphragm pump equipment is a key equipment for tailings transportation. Due to the feed position of the diaphragm pump feed valve box, hard debris in the slurry is easy to get stuck in the feed check valve, causing the check valve to lose its function, and maintenance personnel need to replace the check valve. Since the check valve is an imported part, it is expensive and has a long circulation cycle, so the replaced check valve needs to be repaired. During the original repair, due to the lack of suitable tools, it was necessary to use a hammer and chisel for disassembly and assembly, which was difficult to disassemble and assemble. The check valve could not be tightened in place at once, which was time-consuming and laborious. In addition, since the check valve body is not fixed and limited, the maintenance personnel are very likely to slip during the actual force application process, causing injuries. Therefore, there is an urgent need for a device and method that can easily and quickly disassemble and assemble the diaphragm pump check valve. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a diaphragm pump one-way valve disassembly and assembly device. The technical solution is cleverly designed and compact in structure. The technical solution completes the replacement of the one-way valve core by designing and manufacturing a set of diaphragm pump one-way valve disassembly and assembly devices, which saves time and effort in operation.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a diaphragm pump check valve disassembly and assembly device, the disassembly and assembly device comprises a base, a positioning plate, a support plate and a check valve, wherein the valve stem of the check valve is inserted into the groove of the base, and the concave platform is clamped in the clamping groove of the positioning plate. Two support plates are welded to the base, and the positioning plate is connected to the support plate by bolts.

[0005] The positioning plate is provided with grooves, slots and locking bolts, wherein a bolt hole is opened at the right end of the positioning plate, and the locking bolt is screwed into the bolt hole to support the concave platform of the one-way valve to prevent the one-way valve from rotating.

[0006] The one-way valve comprises a valve seat, a valve stem, a valve core, a valve cover and a concave platform. The valve stem is screwed on the valve seat, a concave platform is opened on the top of the valve cover, the valve core is sleeved on the valve stem, and then the valve cover is screwed on the valve stem to press the valve core.

[0007] Wherein, the support plate is provided with a kidney hole, and the two grooves of the positioning plate are respectively clamped in the kidney holes on the support plate and fixed by connecting bolts.

[0008] The disassembly process of the one-way valve is as follows:

[0009] (1) Insert the homemade special wrench into the valve cover along the valve stem of the one-way valve;

[0010] (2) Place the device at the work site and slide the one-way valve into the device along the slots of the positioning plate and the base;

[0011] (3) Turn the locking bolt so that the end of the bolt firmly presses against the concave platform on the valve stem of the check valve;

[0012] (4) Use a force rod to insert the tail end of the homemade special wrench and apply force in the loosening direction to loosen the valve cover;

[0013] (5) Rotate the locking bolt to make the rod end leave the concave platform on the valve stem of the check valve, and move the check valve out of the device along the slot; take out the valve cover on the check valve, then take out the valve core on the check valve, and replace the new valve core, completing the disassembly of the entire diaphragm pump check valve D.

[0014] The process of reinstalling the check valve is as follows:

[0015] (1) Insert the new valve core into the check valve D along the valve stem of the check valve so that it fits tightly with the valve seat of the check valve;

[0016] (2) Insert the valve cover along the valve stem of the check valve, put the homemade special wrench along the valve stem of the check valve onto the valve cover, and turn the wrench to complete the pre-tightening of the check valve;

[0017] (3) Slide the one-way valve into the device along the slots of the positioning plate and the base;

[0018] (4) Turn the locking bolt so that the end of the bolt firmly presses against the concave platform on the valve stem of the check valve;

[0019] (5) Use a force rod to insert the tail end of the homemade special wrench, and apply force in the tightening direction to tighten the valve cover in place, ensuring that the contact surface between the valve cover and the valve core is in good contact;

[0020] (6) Rotate the locking bolt to make the end of its rod leave the concave platform on the valve stem of the one-way valve, and move the one-way valve out of the device along the slot;

[0021] (7) Place the device and the one-way valve at a designated location for standby use, completing the entire one-way valve reinstallation operation.

[0022] Compared with the prior art, the present invention has the following advantages: 1) the technical solution can quickly realize the positioning and clamping of the one-way valve during disassembly and assembly, and the operation is simple and convenient; the device is a combination part and can be removed at any time, adapting to the use in various scenarios and having a wide range of applications; 2) the specially designed and manufactured wrench can firmly clamp the valve cover of the one-way valve to ensure that the wrench will not slip off during disassembly and assembly by personnel, thereby reducing the risk of maintenance, improving safety and eliminating the hidden dangers of force addition; 3) the designed and manufactured device can be operated by two people, saving 1 / 2 of the human resources, saving time and effort; 4) after using the device, the operation time of disassembly and assembly of the one-way valve is reduced, and the impact on the tailings production process is minimized; the summarized operation method can be referred to by everyone and has strong replicability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the assembly diagram of the diaphragm pump check valve disassembly and assembly device.

[0024] Figure 2 This is a schematic diagram of the positioning plate structure.

[0025] Figure 3 It is a schematic diagram of the one-way valve structure.

[0026] Figure 4 is a schematic diagram of the support plate structure.

[0027] Figure 5 Schematic diagram of the wrench structure.

[0028] In the figure: 1. slot, 2. locking bolt, 3. valve seat, 4. valve stem, 5. valve core, 6. valve cover, 7. concave platform,

[0029] 8. Groove, 9. Kidney hole, 10. Notch, 11. Base, 12. Check valve, 13. Positioning plate, 14. Support plate, 15. Connecting bolt, 16. Wrench. DETAILED DESCRIPTION

[0030] In order to deepen the understanding of the present invention, the present embodiment is described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1: A diaphragm pump check valve disassembly and assembly device, comprising a base 11, a positioning plate 13, a support plate 14 and a check valve 12, wherein the valve stem 4 of the check valve 12 is inserted into the groove of the base 11, and the concave platform 7 is clamped in the clamping groove 1 of the positioning plate 13. Two support plates are welded to the base, and the positioning plate is connected to the support plate by bolts.

[0032] The positioning plate is provided with a groove 8, a slot 1 and a locking bolt 2, wherein a bolt hole is opened at the right end of the positioning plate 13, and the locking bolt 2 is screwed into the bolt hole to support the concave platform 7 of the one-way valve 12 to prevent the one-way valve 12 from rotating.

[0033] The one-way valve comprises a valve seat 3, a valve stem 4, a valve core 5, a valve cover 6 and a concave platform 7. The valve stem 4 is screwed on the valve seat 3, a concave platform 7 is formed on the top of the valve cover 6, the valve core 5 is sleeved on the valve stem 4, and then the valve cover 6 is screwed on the valve stem 4 to press the valve core 5.

[0034] The support plate is provided with a kidney hole 9 , and the two grooves 8 of the positioning plate are respectively clamped in the kidney holes on the support plate and fixed by connecting bolts 15 .

[0035] In this solution, the positioning of the one-way valve is completed by opening a card slot on the base of the device and the positioning plate, and a locking screw is designed on the positioning plate to prevent the one-way valve from rotating during disassembly and assembly. According to the shape of the one-way valve cover, a special wrench is processed and manufactured to complete the disassembly and reassembly of the one-way valve, which is simple and convenient to use.

[0036] From 1 to 5, it can be seen that the specific working process of the diaphragm pump one-way valve disassembly and assembly device of the present invention is:

[0037] The disassembly process of the one-way valve is as follows:

[0038] (1) Insert the homemade special wrench 16 into the valve cover 6 along the valve stem of the one-way valve 12;

[0039] (2) Place the device at the work site and slide the one-way valve 12 into the device along the slots of the positioning plate 13 and the base 11;

[0040] (3) Rotate the locking bolt 2 so that its rod end firmly presses against the concave platform 7 on the valve stem 4 of the one-way valve 12;

[0041] (4) Use a force rod to insert the tail end of the homemade special wrench 16, and apply force in the loosening direction to loosen the valve cover 6;

[0042] (5) Rotate the locking bolt 2 to make the rod end leave the concave platform 7 on the valve stem 4 of the one-way valve 12, and move the one-way valve 12 out of the device along the slot 1; take out the valve cover 6 on the one-way valve 12, and then take out the valve core 5 on the one-way valve 12, and replace the new valve core, completing the disassembly of the entire diaphragm pump one-way valve D.

[0043] The process of reinstalling the check valve is as follows:

[0044] (1) Insert the new valve core 5 into the one-way valve D along the valve stem 4 of the one-way valve 12, so that it fits tightly with the valve seat 3 of the one-way valve 12;

[0045] (2) Insert the valve cover 6 along the valve stem 4 of the one-way valve 12, insert the homemade special wrench 16 along the valve stem 4 of the one-way valve 12 onto the valve cover 6, and turn the wrench 16 to complete the pre-tightening of the one-way valve 12;

[0046] (3) Slide the one-way valve 12 into the device along the positioning plate 13 and the slot 1 of the base 11;

[0047] (4) Rotate the locking bolt 2 so that its rod end firmly presses against the concave platform 7 on the valve stem 4 of the one-way valve 12;

[0048] (5) Use a force rod to insert the tail end of the homemade special wrench 16, and apply force in the tightening direction to tighten the valve cover 6 into place, ensuring that the contact surface between the valve cover 6 and the valve core 5 is in good contact;

[0049] (6) Rotate the locking bolt 2 so that the end of the bolt leaves the recessed platform 7 on the valve stem 4 of the one-way valve 12, and move the one-way valve 12 out of the device along the slot 1;

[0050] (7) The device and the one-way valve 12 are placed at a designated location for standby use, completing the entire one-way valve 12 reinstallation operation.

[0051] The above scheme is summarized into a set of operating methods, which can be referred to by everyone to expand the application level. Using existing channel steel, steel plate and other materials, according to the structural characteristics of the one-way valve, a diaphragm pump one-way valve disassembly and assembly device is designed and manufactured, which has a base, a positioning plate, a support plate, and a one-way valve;

[0052] In order to facilitate the one-way valve to quickly enter and exit the device, a slot is opened on the base and the positioning plate to form a track, so that the valve stem of the one-way valve can slide in and out smoothly in the slot when disassembling;

[0053] A locking screw is provided on the positioning plate. When the valve stem of the one-way valve is inserted into the slot, the locking screw is rotated to press against the concave platform of the valve stem to ensure that the one-way valve does not rotate when the one-way valve is tightened.

[0054] The support plate is provided with a kidney hole, so that the positioning plate can move up and down on the support plate and be fixed by connecting bolts to meet the needs of different types of one-way valves;

[0055] According to the shape of the one-way valve cover, a special wrench is designed and manufactured. When tightening, the wrench is inserted into the one-way valve cover to tighten or loosen.

[0056] like Figures 1 to 4 As shown: The one-way valve disassembly and assembly device mainly consists of four parts: base, positioning plate, support plate, and one-way valve. The base is placed at the designated position according to the on-site environment; the two support plates are welded to the base; the two grooves of the positioning plate are respectively stuck in the kidney holes on the support plate, and are connected and fixed by four connecting bolts; in addition, a hole is drilled and tapped on the right end of the positioning plate, and the locking bolt is screwed into this hole. When using, put the wrench into the stem of the one-way valve so that the notch of the wrench is stuck in the valve cover of the one-way valve; then slide the one-way valve into the device along the slot, and rotate the locking bolt to make it support the concave platform on the stem of the one-way valve to prevent the stem of the one-way valve from rotating during disassembly and assembly.

[0057] Working principle description: The working principle of this diaphragm pump check valve disassembly and assembly device is:

[0058] When hard debris enters the feed valve box and jams the check valve, the check valve needs to be replaced. When repairing the replaced check valve, the check valve cover needs to be disassembled and the valve core inside needs to be replaced. Figure 1 As shown, the device is a combination, with two support plates welded on the base, and the positioning plate is connected to the support plate by bolts. When using, first insert the self-made special wrench 16 into the valve cover 6 of the one-way valve 12 to complete the pre-tightening, then slide the one-way valve 12 into the device along the card slot 1, tighten the locking bolt 2, and then pull the wrench 16 to complete the disassembly of the one-way valve cover 6, replace the valve core 5 inside, and vice versa for reinstallation.

[0059] It should be noted that the above embodiments are not intended to limit the protection scope of the present invention, and equivalent changes or substitutions made on the basis of the above technical solutions all fall within the protection scope of the claims of the present invention.

Claims

1. A diaphragm pump one-way valve disassembly and assembly device, characterized in that: The disassembly and assembly device comprises a base (11), a positioning plate (13), a support plate (14) and a one-way valve, wherein the valve stem of the one-way valve is inserted into a groove of the base, the concave platform is clamped in a clamping groove of the positioning plate, two support plates are welded to the base, and the positioning plate is connected to the support plate by bolts.

2. The diaphragm pump check valve disassembly and assembly device according to claim 1, characterized in that: The positioning plate is provided with a groove, a slot and a locking bolt, wherein a bolt hole is opened at the right end of the positioning plate, and the locking bolt is screwed into the bolt hole to support the concave platform of the one-way valve to prevent the one-way valve from rotating.

3. The diaphragm pump check valve disassembly and assembly device according to claim 2, characterized in that: The one-way valve comprises a valve seat, a valve stem, a valve core, a valve cover and a concave platform, wherein the valve stem is screwed on the valve seat, a concave platform is opened on the top of the valve cover, the valve core is sleeved on the valve stem, and then the valve cover is screwed on the valve stem to press the valve core.

4. The diaphragm pump check valve disassembly and assembly device according to claim 3, characterized in that: The support plate is provided with a kidney hole, and the two grooves of the positioning plate are respectively clamped at the kidney holes on the support plate and fixed by connecting bolts.

5. The diaphragm pump one-way valve disassembly and assembly device according to claim 4, characterized in that: The disassembly process of the one-way valve is as follows: (1) Insert the wrench into the valve cover along the valve stem of the check valve; (2) Place the device at the work site and slide the one-way valve into the device along the slots of the positioning plate and the base; (3) Turn the locking bolt so that the end of the bolt firmly presses against the concave platform on the valve stem of the check valve; (4) Insert the force rod into the tail end of the wrench and apply force in the loosening direction to loosen the valve cover; (5) Rotate the locking bolt to make the rod end leave the concave platform on the valve stem of the one-way valve, and move the one-way valve out of the device along the slot; take out the valve cover on the one-way valve, then take out the valve core on the one-way valve, and replace the new valve core, completing the disassembly of the entire diaphragm pump check valve D.

6. The diaphragm pump check valve disassembly and assembly device according to claim 4, characterized in that: The process of reinstalling the check valve is as follows: (1) Insert the new valve core into the check valve D along the valve stem of the check valve so that it fits tightly with the valve seat of the check valve; (2) Put the valve cover along the valve stem of the check valve, put the wrench along the valve stem of the check valve on the valve cover, and turn the wrench to complete the pre-tightening of the check valve; (3) Slide the one-way valve into the device along the slots of the positioning plate and the base; (4) Turn the locking bolt so that the end of the bolt firmly presses against the concave platform on the valve stem of the check valve; (5) Use a force rod to insert the tail end of the homemade special wrench 16, and apply force in the tightening direction to tighten the valve cover in place, ensuring that the contact surface between the valve cover and the valve core is in good contact; (6) Rotate the locking bolt to make the end of its rod leave the concave platform on the valve stem of the one-way valve, and move the one-way valve out of the device along the slot; (7) Place the device and the one-way valve at a designated location for standby use, completing the entire one-way valve reinstallation operation.

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