Anti-locking connection assembly for a diaphragm pump

Abstract

The utility model provides an anti-locking connection assembly for diaphragm pump, including diaphragm pump body, transmission pipeline, diaphragm pump connecting joint, transmission connecting joint, the utility model provides an anti-locking connection assembly for diaphragm pump still includes connecting block and bolt unit, every connecting block all includes a connecting block body, a through -hole being arranged on the connecting block body, a plurality of respectively sets up in the connecting block body's counterbore, the counterbore includes a countersunk hole, a via hole being arranged in the countersunk hole one side, every bolt unit all includes a bolt, a nut being screwed in the bolt one end, the length of bolt is greater than the thickness of connecting block body and transmission connecting joint and the thickness of connecting block body and diaphragm pump connecting joint, and this anti-locking connection assembly for diaphragm pump is firm in installation, and it is convenient to maintain, dismounts.

Description

Technical Field

[0001] This utility model belongs to the field of diaphragm pump technology, and in particular, it is an anti-lock-up connection component for diaphragm pumps. Background Technology

[0002] A pneumatic diaphragm pump is a new type of liquid transfer machine powered by compressed air. Its main materials include aluminum alloy, cast iron, stainless steel, or plastic. Internal flow-through components are made of corrosion-resistant materials such as nitrile rubber and fluororubber, depending on the characteristics of the medium. Its core structure consists of the pump body and the inlet reversing valve. The pump body includes key components such as the diaphragm assembly, small shaft assembly, flow divider, and ball valve seat, working in conjunction with the air supply pipeline, control valve, pressure gauge, and liquid transfer pipeline.

[0003] Currently, the main body of the diaphragm pump is directly fixed to the inlet and outlet pipes using screws. When the whole machine is made of stainless steel to cope with strong corrosive conditions, the bolts are also made of stainless steel, which can easily cause thread seizing. In addition, during tightening or high-pressure vibration, material transfer occurs at the contact surface of the internal and external threads due to local cold welding, leading to thread seizing or even jamming. The disassembly torque increases sharply, and cutting or destructive disassembly must be used during maintenance, which increases downtime and maintenance costs. Utility Model Content

[0004] In view of this, the present invention provides an easily detachable anti-lock connection assembly for diaphragm pumps to meet industrial needs.

[0005] An anti-lock-up connection assembly for a diaphragm pump includes a diaphragm pump body, a transmission pipeline disposed on one side of the diaphragm pump body for transmitting fluid, a diaphragm pump connection joint disposed on the diaphragm pump body, and a transmission connection joint disposed on the transmission pipeline. The anti-lock-up connection assembly further includes multiple connecting blocks disposed between the diaphragm pump connection joint and the transmission connection joint, and multiple bolt units connecting the diaphragm pump connection joint, the transmission connection joint, and the connecting blocks. Each connecting block includes a connecting block body, a through hole disposed on the connecting block body, and multiple countersunk holes disposed on the connecting block body. Each countersunk hole includes a countersunk head hole and a through hole disposed on one side of the countersunk head hole. Each bolt unit includes a bolt and a nut screwed to one end of the bolt. The length of the bolt is greater than the sum of the thicknesses of the connecting block body and the transmission connection joint, and the sum of the thicknesses of the connecting block body and the diaphragm pump connection joint.

[0006] Furthermore, there are four countersunk holes, which are respectively located at the top corners of the connecting block body, and the countersunk holes among the four countersunk holes are alternately located on both sides of the connecting block body.

[0007] Furthermore, the two countersunk holes on the same side are located on the diagonal of the connecting block body.

[0008] Furthermore, each of the connecting blocks also includes at least one sealing ring receiving groove disposed on one side of the connecting block body.

[0009] Furthermore, the center of the sealing ring receiving groove coincides with the central axis of the through hole.

[0010] Furthermore, the diameter of the countersunk hole is larger than the diameter of the through hole.

[0011] Compared with the prior art, the anti-locking connection assembly for diaphragm pumps provided by this utility model is disposed between the diaphragm pump connection joint and the transmission connection joint via a connecting block, and the connecting block is fixedly connected between the diaphragm pump connection joint and the transmission connection joint via bolt units. Each connecting block includes a connecting block body, a through hole provided on the connecting block body, and multiple countersunk holes respectively provided on the connecting block body. Each bolt unit includes a bolt and a nut screwed to one end of the bolt. The countersunk hole in the countersunk hole is used to accommodate the nut on the bolt, and the bolt shank passes through the countersunk hole, thereby stabilizing the position of the bolt on the connecting block. In addition, the length of the bolt is greater than the sum of the thicknesses of the connecting block body and the transmission connection joint, and the sum of the thicknesses of the connecting block body and the diaphragm pump connection joint, so that when the bolt connects the connecting block body and the transmission connection joint together, and when the connecting block body and the diaphragm pump connection joint are connected together, the bolt protrudes from one side of the diaphragm pump connection joint and the transmission connection joint, so that the free end of the bolt can be screwed with the nut. During the replacement of the bolt unit, the user only needs to remove the nut. This demonstrates that the anti-lock connection assembly for the diaphragm pump is securely installed and easy to maintain and disassemble. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the anti-lock-up connection assembly for a diaphragm pump provided by this utility model.

[0013] Figure 2 for Figure 1 A cross-sectional schematic diagram of an anti-lock connection assembly for a diaphragm pump.

[0014] Figure 3 for Figure 1 A schematic diagram of the connecting block in the anti-lock connection assembly for diaphragm pumps.

[0015] Figure 4 for Figure 1A schematic diagram of the connecting block in the anti-lock connection assembly for diaphragm pumps from another perspective. Detailed Implementation

[0016] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0017] like Figures 1 to 3 The diagram shows a structural schematic of the anti-lock-up connection assembly for a diaphragm pump provided by this utility model. The anti-lock-up connection assembly for the diaphragm pump includes a diaphragm pump body 1, a transmission pipeline 2 disposed on one side of the diaphragm pump body 1, a diaphragm pump connection joint 3 disposed on the diaphragm pump body 1, a transmission connection joint 4 disposed on the transmission pipeline 2, multiple connecting blocks 10 disposed between the diaphragm pump connection joint 3 and the transmission connection joint 4, and multiple bolt units 20 connecting the diaphragm pump connection joint 3, the transmission connection joint 4, and the connecting blocks 10. The anti-lock-up connection assembly for the diaphragm pump also includes other functional modules, such as assembly components, etc., which should be known to those skilled in the art and will not be described in detail here.

[0018] The diaphragm pump body 1 is the core control element. By alternately supplying or venting air to both sides of the pump body, it drives the diaphragm to reciprocate left and right. The diaphragm pump body 1 is a prior art and will not be described in detail here.

[0019] There are two transmission pipelines 2, one of which is an inlet pipe and the other is an outlet pipe. Fluid transfer between the diaphragm pump body 1 and the transmission pipeline 2 is achieved through the diaphragm pump connection connector 3 and the transmission connection connector 4. The transmission pipeline 2 is a prior art technology and will not be described in detail here.

[0020] The diaphragm pump connection joint 3 is disposed on the diaphragm pump body 1 and communicates with the channel of the diaphragm pump body 1. The transmission connection joint 4 is disposed on the transmission pipeline 2 and communicates with the channel of the transmission pipeline 2. The connection structure between the diaphragm pump connection joint 3 and the diaphragm pump body 1, and the connection structure between the transmission connection joint 4 and the transmission pipeline 2 are existing technologies and will not be described in detail here.

[0021] Both the diaphragm pump connector 3 and the transmission connector 4 are provided with connection holes. These connection holes cooperate with the connecting block 10 to realize the connection between the diaphragm pump connector 3, the transmission connector 4 and the connecting block 10. The connection structure between the diaphragm pump connector 3, the transmission connector 4 and the connecting block 10 will be described in detail with reference to the connecting block 10, and will not be repeated here.

[0022] Each of the connecting blocks 10 includes a connecting block body 11, a through hole 12 disposed on the connecting block body 11, a plurality of countersunk holes 13 disposed on the connecting block body 11 respectively, and at least one sealing ring receiving groove 14 disposed on one side of the connecting block body 11.

[0023] The connecting block body 11 is disposed between the diaphragm pump connecting connector 3 and the transmission connecting connector 4. The connecting block body 11 is interconnected with the diaphragm pump connecting connector 3 and the transmission connecting connector 4 through the countersunk hole 13. The connecting block body 11 is used to conduct electricity between the diaphragm pump connecting connector 3 and the transmission connecting connector 4 through the through hole 12, thereby realizing the connection between the connecting block 10, the transmission pipeline 2, and the diaphragm pump body 1. The connecting block body 11 and the through hole 12 are existing technologies and will not be described in detail here.

[0024] Each countersunk hole 13 includes a countersunk hole 131 and a through hole 132 disposed on one side of the countersunk hole 131. The countersunk hole 13 is used to cooperate with the connecting holes on the diaphragm pump connection joint 3 and the transmission connection joint 4, so that the bolt unit 20 connects the diaphragm pump connection joint 3, the transmission connection joint 4, and the connecting block 10 together.

[0025] In this embodiment, there are four countersunk holes 13, which are respectively located at the top corners of the connecting block body 11. The countersunk holes 131 of the four countersunk holes 13 are alternately located on both sides of the connecting block body 11. That is, the countersunk holes 131 of two countersunk holes 13 face the diaphragm pump connecting connector 3, and the countersunk holes 131 of the other two countersunk holes 13 face the transmission connecting connector 4. The two countersunk holes 131 on the same side of the connecting block body 11 are located on the diagonal of the connecting block body 11. That is, when the diaphragm pump connecting connector 3 and the transmission connecting connector 4 are connected to the connecting block body 11, the diaphragm pump connecting connector 3 and the transmission connecting connector 4 are rotated 90 degrees to connect with the connecting block body 11, thereby reducing interference during the connection process between the diaphragm pump connecting connector 3 and the transmission connecting connector 4 and the connecting block body 11.

[0026] The center of the sealing ring receiving groove 14 coincides with the central axis of the through hole 12. The sealing ring receiving groove 14 is used to receive the sealing ring, so that the sealing ring is stable in the position of the connecting block body 11, and the sealing ring surrounds the outside of the through hole 12, thereby improving the sealing performance of the through hole 12.

[0027] Each bolt unit 20 includes a bolt 21 and a nut 22 screwed to one end of the bolt 21. Both the bolt 21 and the nut 22 are existing technologies. The countersunk hole 131 is used to accommodate the nut on the bolt 21, and the thread on the bolt 21 passes through the countersunk hole 13, thereby stabilizing the position of the bolt 21 on the connecting block 10.

[0028] In addition, the length of the bolt 21 is greater than the sum of the thicknesses of the connecting block body 11 and the transmission connection joint 4, and the sum of the thicknesses of the connecting block body 11 and the diaphragm pump connection joint 3. Therefore, when the bolt 21 connects the connecting block body 11 and the transmission connection joint 4, and when the connecting block body 11 and the diaphragm pump connection joint 3 are connected together, the bolt 21 protrudes from one side of the diaphragm pump connection joint 3 and the transmission connection joint 4, so that the free end of the bolt 21 can be screwed with the nut 22.

[0029] When the bolt unit 20 fixes the connecting block 10 between the diaphragm pump connecting joint 3 and the transmission connecting joint 4, the countersunk holes 131 in the countersunk holes 13 are alternately arranged on both sides of the connecting block body 11, so that the nuts 22 in the multiple bolt units 20 are alternately arranged on both sides of the connecting block body 11, so as to maintain sufficient gap between adjacent bolt units 20, so that the user can turn the nuts 22 on the bolt unit 20. During the replacement of the bolt unit 20, the user only needs to remove the nuts 22. Even if the nuts 22 cannot be removed from the bolt 21, the nut 22 can be removed by cutting or destructive removal during maintenance, and only the nut 22 needs to be replaced, without increasing maintenance and downtime.

[0030] Compared with the prior art, the anti-locking connection assembly for diaphragm pumps provided by this utility model is disposed between the diaphragm pump connection joint 3 and the transmission connection joint 4 via the connecting block 10, and the connecting block 10 is fixedly connected between the diaphragm pump connection joint 3 and the transmission connection joint 4 via the bolt unit 20. Each connecting block 10 includes a connecting block body 11, a through hole 12 disposed on the connecting block body 11, and multiple countersunk holes 13 disposed on the connecting block body 11. Each bolt unit 20 includes a bolt 21 and a nut 22 screwed to one end of the bolt 21. The countersunk hole 131 in the countersunk hole 13 is used to accommodate the nut on the bolt 21, and the thread on the bolt 21 passes through the countersunk hole 13, thereby stabilizing the position of the bolt 21 on the connecting block 10. Furthermore, the length of the bolt 21 is greater than the sum of the thicknesses of the connecting block body 11 and the transmission connection joint 4, and the sum of the thicknesses of the connecting block body 11 and the diaphragm pump connection joint 3. Therefore, when the bolt 21 connects the connecting block body 11 to the transmission connection joint 4, and when it connects the connecting block body 11 to the diaphragm pump connection joint 3, the bolt 21 protrudes from one side of the diaphragm pump connection joint 3 and the transmission connection joint 4, so that the free end of the bolt 21 can be screwed onto the nut 22. During the replacement of the bolt unit 20, the user only needs to remove the nut 22. It can be seen that this anti-lock connection assembly for the diaphragm pump is securely installed and easy to maintain and disassemble.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An anti-lock-up connection assembly for a diaphragm pump, comprising a diaphragm pump body, a transmission pipeline disposed on one side of the diaphragm pump body for transmitting fluid, a diaphragm pump connection joint disposed on the diaphragm pump body, and a transmission connection joint disposed on the transmission pipeline, characterized in that: The anti-lock connection assembly for the diaphragm pump includes multiple connecting blocks disposed between the diaphragm pump connecting joint and the transmission connecting joint, and multiple bolt units connected between the diaphragm pump connecting joint, the transmission connecting joint, and the connecting blocks. Each connecting block includes a connecting block body, a through hole disposed on the connecting block body, and multiple countersunk holes disposed on the connecting block body. Each countersunk hole includes a countersunk head hole and a through hole disposed on one side of the countersunk head hole. Each bolt unit includes a bolt and a nut screwed to one end of the bolt. The length of the bolt is greater than the sum of the thicknesses of the connecting block body and the transmission connecting joint, and the sum of the thicknesses of the connecting block body and the diaphragm pump connecting joint.

2. The anti-lock-up connection assembly for a diaphragm pump as described in claim 1, characterized in that: There are four countersunk holes, which are respectively located at the top corners of the connecting block body. The countersunk holes of the four countersunk holes are alternately located on both sides of the connecting block body.

3. The anti-lock-up connection assembly for a diaphragm pump as described in claim 2, characterized in that: The two countersunk holes on the same side are located on the diagonal of the connecting block body.

4. The anti-lock-up connection assembly for a diaphragm pump as described in claim 1, characterized in that: Each of the connecting blocks also includes at least one sealing ring receiving groove disposed on one side of the connecting block body.

5. The anti-lock-up connection assembly for a diaphragm pump as described in claim 4, characterized in that: The center of the sealing ring receiving groove coincides with the central axis of the through hole.

6. The anti-lock-up connection assembly for a diaphragm pump as described in claim 1, characterized in that: The diameter of the countersunk hole is larger than the diameter of the through hole.

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