CN215566942U

CN215566942U - Connecting pipeline for vertical water jet vacuum pump unit

Info

Publication number: CN215566942U
Application number: CN202120954232.6U
Authority: CN
Inventors: 余柏春; 张波
Original assignee: Hangzhou Qiandao Pumps Co ltd
Current assignee: Hangzhou Qiandao Pumps Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-01-18
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a connecting pipeline for a vertical water jet vacuum pump unit, and relates to the technical field of vacuum pumps. The utility model comprises a straight pipe and a bent pipe, wherein the straight pipe is connected with a threaded cylinder through a threaded rod, two ends of the straight pipe are both connected with the bent pipe through a sealing ring, and one end of the bent pipe, far away from the straight pipe, is fixedly connected with a first flange. According to the utility model, the sealing performance of the connection between the straight pipe and the bent pipe is increased by arranging the sealing ring and the rubber sealing block, so that the later-stage looseness and leakage can be avoided, the maintenance work is reduced, the threaded barrel is arranged, the length can be adjusted by matching with the threaded rod, and the threaded barrel can be fixed with external equipment, so that the outside of the straight pipe is fixed, the stability of the straight pipe is increased, the elastic sleeve can protect the fixing bolt and the nut, the rusting and corrosion can be avoided, the service life is prolonged, and the replacement frequency is reduced.

Description

Connecting pipeline for vertical water jet vacuum pump unit

Technical Field

The utility model belongs to the technical field of vacuum pumps, and particularly relates to a connecting pipeline for a vertical water jet vacuum pump unit.

Background

Vertical water jet vacuum pump unit is with the water jet vacuum pump to produce the original paper for the vacuum, and the power supply-centrifugal pump has been combined, circulation tank, vacuum measurement and vacuum control, gaseous cooling, solvent recovery, novel vacuum apparatus as an organic whole such as circulating water heat sink, for horizontal water jet vacuum unit, more accord with the environmental protection requirement, to waste water, waste gas can be more convenient unify recovery processing, but the wide application chemical industry, agricultural chemicals, gently spin, food, smelt, trade such as environmental protection, in the connection of vacuum pump unit, connecting tube need be used, connect the spare part between the vacuum pump group, but it still has following drawback in the in-service use:

1. when the direction of the existing connecting pipeline for the vertical water jet vacuum pump unit needs to be changed in connection, the connecting pipeline needs to be connected through a connecting bent pipe, the joint of the bent pipe is easy to be unsealed, the sealing performance of the connecting pipeline can be reduced, the phenomenon of loosening and leakage is easy to occur in the using process, the work of the vacuum pump unit is not facilitated, and frequent maintenance is needed;

2. the connecting pipe who is used for vertical water injection vacuum pump unit that has now does not have better stability when using, makes vacuum pump unit at the during operation, and inside liquid fast flow can lead to the unstability of connecting pipe, is not convenient for fix the outside of connecting pipe, and the bolt of connection on the flange receives external environment's influence easily, can appear after using for a long time rusty and the condition corroded.

Therefore, the existing connecting pipeline for the vertical water jet vacuum pump unit cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a connecting pipeline for a vertical water jet vacuum pump unit, which solves the problems that the connecting part of the existing bent pipe is easy to be unsealed, the sealing performance of the connecting pipeline can be reduced, the connecting pipeline is unstable due to the rapid flow of liquid in the connecting pipeline when the vacuum pump unit works, and bolts connected to a flange are easy to rust and corrode under the influence of the external environment by arranging a seal, a rubber sealing block, a threaded cylinder and an elastic sleeve.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a connecting pipeline for a vertical water jet vacuum pump unit, which comprises a straight pipe and a bent pipe, wherein the straight pipe is connected with a threaded cylinder through a threaded rod, the two ends of the straight pipe are both connected with the bent pipe through sealing rings, one end of the bent pipe, far away from the straight pipe, is fixedly connected with a first flange, the two ends of the straight pipe are both fixedly connected with the sealing rings, the two ends of the outer side of the straight pipe are both fixedly connected with rubber sealing blocks, the bent pipe is connected with annular sheets through annular blocks and screws, the first flange is connected with a second flange through fixing bolts, and elastic sleeves are sleeved outside the first flange and the second flange.

Further, there is a threaded rod inside the threaded cylinder through threaded connection, the other end fixed connection of threaded rod is in the outside of straight tube, the one end fixedly connected with mount pad of threaded rod is kept away from to the threaded cylinder, the mounting hole has been seted up to the terminal surface both sides of mount pad, can change the length of threaded rod in the threaded cylinder through the cooperation of threaded rod and threaded cylinder, can fix on external equipment through mount pad and mounting hole.

Further, the return bend is close to the one end and the sealing washer connection of straight tube, the one end welding that the outside of return bend is close to the straight tube has the annular piece, the sealed piece butt of rubber is in the inside of annular piece, the annular piece has the annular piece through screw connection, makes the junction of straight tube and return bend have inclosed effect through the sealing washer, and the cross-section of annular piece is the U type, and the internal diameter of annular piece cooperatees with the external diameter of straight tube, can be connected annular piece and annular piece through the screw.

Further, the size of annular piece cooperatees with the size of the sealed piece of rubber, the mounting groove has been seted up to the one end that the annular piece is close to the straight tube, the up end off-plate side of annular piece is seted up and is equipped with the through-hole, and through-hole and mounting groove one-to-one, the screw runs through the through-hole, the trailing end connection of through-hole is in the mounting groove, can let the bottom mounting of screw in the mounting groove through this kind of setting, connects the annular piece on the annular piece.

Furthermore, a first bolt hole is formed in the end face of the first flange, a second bolt hole is formed in the end face of the second flange, the first bolt hole corresponds to the second bolt hole in a one-to-one mode, the fixing bolt penetrates through the first bolt hole and the second bolt hole, the other end of the fixing bolt is connected with a nut through threads, the fixing bolt can penetrate through the first bolt hole and the second bolt hole through the arrangement, the nut can play a role in locking, and the first flange and the second flange are fixed mutually.

Furthermore, the inside both sides of elastic sleeve are located outside fixed bolt and nut, be connected with the flange gasket between first flange and the second flange, and the both ends of flange gasket respectively with first flange and second flange joint, the one end fixedly connected with outside pipe that first flange was kept away from to the second flange, the material of flange gasket is rubber, can seal the junction of first flange and second flange through the flange gasket, can connect on equipment according to actual conditions through the outside pipe.

The utility model has the following beneficial effects:

1. according to the utility model, the sealing ring is arranged, so that the sealing property of the joint of the straight pipe and the bent pipe is improved, the rubber sealing block can be abutted against the inner part of the annular block through the connection of the annular block and the annular sheet, the sealing property of the straight pipe and the bent pipe which are connected is further improved, the phenomenon of looseness and leakage in the later stage is greatly ensured, and the maintenance work is reduced.

2. The length of the straight pipe can be adjusted by the matching of the threaded barrel and the threaded rod, so that the straight pipe can be fixed with external equipment, the outer part of the straight pipe is fixed, the stability of the straight pipe is improved, the fixing bolt and the nut can be protected by the elastic sleeve, the situations of rusting and corrosion are avoided, the service life is prolonged, and the replacement frequency is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of a first flange to second flange connection according to the present invention;

FIG. 3 is an elevation view of the connection of a straight tube to a bent tube according to the present invention;

fig. 4 is an exploded view of the connection structure of the straight pipe and the bent pipe according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. A straight pipe; 11. a seal ring; 12. a rubber sealing block; 2. a threaded barrel; 21. a threaded rod; 22. a mounting seat; 23. mounting holes; 3. bending the pipe; 31. a ring block; 311. mounting grooves; 32. a screw; 33. an annular sheet; 331. a through hole; 4. a first flange; 41. a second flange; 42. fixing the bolt; 43. an elastic sleeve; 44. a first bolt hole; 45. a second bolt hole; 46. a flange gasket; 47. a nut; 48. an outer tube.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the present invention is a connecting pipe for a vertical water jet vacuum pump unit, which includes a straight pipe 1 and an elbow pipe 3, wherein the straight pipe 1 is connected to a threaded cylinder 2 through a threaded rod 21, both ends of the straight pipe 1 are connected to the elbow pipe 3 through a sealing ring 11, and one end of the elbow pipe 3 away from the straight pipe 1 is fixedly connected to a first flange 4.

As shown in fig. 3-4, both ends of the straight tube 1 are fixedly connected with a sealing ring 11, both ends of the outside of the straight tube 1 are fixedly connected with a rubber sealing block 12, one end of the elbow 3 close to the straight tube 1 is connected with the sealing ring 11, one end of the outside of the elbow 3 close to the straight tube 1 is welded with a ring block 31, the size of the ring block 31 is matched with the size of the rubber sealing block 12, one end of the ring block 31 close to the straight tube 1 is provided with a mounting groove 311, the rubber sealing block 12 is abutted against the inside of the ring block 31, the elbow 3 is connected with a ring sheet 33 through the ring block 31 and a screw 32, the ring block 31 is connected with a ring sheet 33 through a screw 32, the outside of the upper end of the ring sheet 33 is provided with a through hole 331, the through holes 331 are in one-to-one correspondence with the mounting grooves 311, the screw 32 penetrates through the through hole 331, the tail end of the screw 32 is connected in the mounting groove 311, the first flange 4 is connected with a second flange 41 through a fixing bolt 42, the end face of the first flange 4 is provided with a first bolt hole 44, the end face of the second flange 41 is provided with a second bolt hole 45, the first bolt hole 44 and the second bolt hole 45 are in one-to-one correspondence, a fixing bolt 42 penetrates through the first bolt hole 44 and the second bolt hole 45, a flange gasket 46 is connected between the first flange 4 and the second flange 41, two ends of the flange gasket 46 are respectively connected with the first flange 4 and the second flange 41, the other end of the fixing bolt 42 is connected with a nut 47 through a thread, one end of the second flange 41 far away from the first flange 4 is fixedly connected with an external pipe 48, when the external pipe 48 is fixed, the external pipe 48 and the second flange 41 are installed, when the external pipe 48 is installed, the flange gasket 46 is placed between the first flange 4 and the second flange 41, the first bolt hole 44 is aligned with the second bolt hole 45, then the fixing bolt 42 penetrates through the first bolt hole 44 and the second bolt hole 45, when the nut 47 is screwed on the fixing bolt 42 and the nut 47 is turned inwards, the first flange 4 and the second flange 41 are fixed through locking of the nut 47, so that the outer pipe 48 is connected with one end of the elbow pipe 3 under the action of the first flange 4 and the second flange 41, the outer pipe 48 can be connected with external equipment according to actual conditions to realize internal communication of a connecting pipeline, the annular sheet 33 is sleeved on the outer side of the straight pipe 1, when the other ends of the straight pipe 1 and the elbow pipe 3 are connected, the other end of the elbow pipe 3 is placed on the sealing ring 11 on the end surface of the straight pipe 1, in the process, the annular block 31 extrudes the rubber sealing block 12, the rubber sealing block 12 is filled in the annular block 31, then the annular sheet 33 is moved to the lower part of the annular block 31, so that the through hole 331 corresponds to the mounting groove 311, then the screw 32 passes through the through hole 331, and the tail end of the screw 32 is connected in the mounting groove 311, can connect the other end of straight tube 1 and return bend 3, at the in-process of tightening screw 32, the annular piece 33 extrudees rubber seal block 12, and when the fixed back of annular piece 33, rubber seal block 12 is full of the inside of annular piece 31, makes the junction of straight tube 1 and return bend 3 have better leakproofness under the combined action of 11 rubber seal blocks 12 of sealing washer, has guaranteed that inside liquid can not flow when flowing.

As shown in fig. 1-2, the interior of the threaded cylinder 2 is connected with a threaded rod 21 through threads, the other end of the threaded rod 21 is fixedly connected to the outer side of the straight pipe 1, one end of the threaded cylinder 2, which is far away from the threaded rod 21, is fixedly connected with a mounting seat 22, mounting holes 23 are formed in two sides of the end surface of the mounting seat 22, elastic sleeves 43 are sleeved outside the first flange 4 and the second flange 41, two sides of the interior of the elastic sleeves 43 are positioned outside the fixing bolts 42 and the nuts 47, after the pipeline is connected, the elastic sleeves 43 are sleeved outside the first flange 4 and the second flange 41, and the fixing bolts 42 and the nuts 47 are sleeved at the same time, so that the fixing bolts 42 and the nuts 47 are also in the elastic sleeves 43, the fixing bolts 42 and the nuts 47 are protected, the positions of the threaded rod 21 in the threaded cylinder 2 are changed under the matching of the threads by rotating the threaded cylinder 2, thereby changing the total length of the threaded cylinders 2 and 21, adjust the distance of mount pad 22 apart from straight tube 1 for the one end that straight tube 1 was kept away from to mount pad 22 is pasted on external equipment, then installs the fastener through mounting hole 23, makes mount pad 22 fixed with external equipment, thereby carries out the auxiliary stay to straight tube 1, has improved the stability of straight tube 1.

One specific application of this embodiment is: when the connection is performed, the fixing bolt 42 passes through the first bolt hole 44 and the second bolt hole 45, and then the nut 47 is locked, so that the first flange 4 and the second flange 41 are fixed, thereby the external pipe 48 is connected with one end of the elbow pipe 3, then the elastic sleeve 43 can be sleeved outside the first flange 4 and the second flange 41, then the straight pipe 1 is connected with the other end of the elbow pipe 3, the other end of the elbow pipe 3 is placed on the sealing ring 11, the annular block 31 just extrudes the rubber sealing block 12, so that the annular block 31 is positioned outside the rubber sealing block 12, then the annular sheet 33 is connected with the annular block 31 through the bolt 32, so that the rubber sealing block 12 is filled inside the annular block 31, the straight pipe 1 and the elbow pipe 3 are sealed under the action of the sealing ring 11 and the rubber sealing block 12, the leakage is avoided, and then the threaded barrel 2 is rotated, the total length of the thread cylinder 2 and the thread rod 21 is adjusted, the mounting seat 22 is attached to external equipment, and then the mounting seat 22 is fixed through the mounting hole 23, so that the external part of the straight pipe 1 is fixed in an auxiliary mode, and the stability of the straight pipe 1 is improved.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.

Claims

1. The utility model provides a connecting tube for vertical water jet vacuum pump unit, includes straight tube (1) and return bend (3), its characterized in that: the straight pipe (1) is connected with a threaded cylinder (2) through a threaded rod (21), two ends of the straight pipe (1) are connected with a bent pipe (3) through a sealing ring (11), and one end, far away from the straight pipe (1), of the bent pipe (3) is fixedly connected with a first flange (4);

wherein, both ends of the straight pipe (1) are fixedly connected with sealing rings (11), and both ends of the outer side of the straight pipe (1) are fixedly connected with rubber sealing blocks (12);

return bend (3) are connected with annular piece (33) through annular piece (31) and screw (32), first flange (4) are connected with second flange (41) through fixing bolt (42), elastic sleeve (43) is cup jointed to the outside of first flange (4) and second flange (41).

2. The connecting pipe for the vertical water jet vacuum pump unit according to claim 1, wherein a threaded rod (21) is connected to the inside of the threaded cylinder (2) through threads, the other end of the threaded rod (21) is fixedly connected to the outer side of the straight pipe (1), a mounting seat (22) is fixedly connected to one end of the threaded cylinder (2) far away from the threaded rod (21), and mounting holes (23) are formed in two sides of the end surface of the mounting seat (22).

3. The connecting pipe for the vertical water jet vacuum pump unit according to claim 1, wherein one end of the elbow (3) close to the straight pipe (1) is connected with the sealing ring (11), one end of the outer side of the elbow (3) close to the straight pipe (1) is welded with an annular block (31), the rubber sealing block (12) abuts against the inside of the annular block (31), and the annular block (31) is connected with an annular sheet (33) through a screw (32).

4. The connecting pipe for the vertical water jet vacuum pump unit according to claim 3, wherein the size of the annular block (31) is matched with that of the rubber sealing block (12), one end, close to the straight pipe (1), of the annular block (31) is provided with a mounting groove (311), the outer side of the upper end face of the annular sheet (33) is provided with through holes (331), the through holes (331) correspond to the mounting grooves (311) in a one-to-one mode, the screws (32) penetrate through the through holes (331), and the tail ends of the screws (32) are connected into the mounting grooves (311).

5. The connecting pipe for the vertical water jet vacuum pump unit according to claim 1, wherein the end face of the first flange (4) is provided with a first bolt hole (44), the end face of the second flange (41) is provided with a second bolt hole (45), the first bolt hole (44) and the second bolt hole (45) correspond to each other in a one-to-one manner, the fixing bolt (42) penetrates through the first bolt hole (44) and the second bolt hole (45), and the other end of the fixing bolt (42) is connected with a nut (47) through threads.

6. A connecting pipe for a vertical water jet vacuum pump unit according to claim 1, wherein two sides of the inside of the elastic sleeve (43) are located outside the fixing bolt (42) and the nut (47), a flange gasket (46) is connected between the first flange (4) and the second flange (41), two ends of the flange gasket (46) are respectively connected with the first flange (4) and the second flange (41), and one end of the second flange (41) far away from the first flange (4) is fixedly connected with an external pipe (48).