CN220849267U

CN220849267U - Novel hand hole is sealed device

Info

Publication number: CN220849267U
Application number: CN202322682943.4U
Authority: CN
Inventors: 王木亮
Original assignee: Zhejiang Tianchen Medical And Chemical Equipment Co ltd
Current assignee: Zhejiang Tianchen Medical And Chemical Equipment Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-04-26
Anticipated expiration: 2033-10-07

Abstract

The application relates to a novel hand hole sealing device which comprises a short pipe, a hand hole cover with a handle and a bolt and nut assembly, wherein an end pipe is used for being installed on a machine body shell, a lower flange plate is coaxially sleeved and fixed on the short pipe, an upper flange plate is coaxially sleeved and fixed on the end part of the hand hole cover, the bolt and nut assembly is used for fixedly connecting the upper flange plate with the lower flange plate, the novel hand hole sealing device further comprises an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is fixed on the upper flange plate, one end of the lower connecting rod is fixed on the lower flange plate, and the other ends of the upper connecting rod and the lower connecting rod are mutually hinged together around the axial direction perpendicular to the upper flange plate and the lower flange plate. When overhauling the inside organism, operating personnel with the handhole door upset open can, need not carry the handhole door again, overturn after the maintenance is accomplished and close the handhole door, go up the ring flange and can automatic alignment lower ring flange, conveniently lock last ring flange and lower ring flange, finally reach the purpose that makes things convenient for the handhole to use.

Description

Novel hand hole is sealed device

Technical Field

The utility model relates to the field of hand holes, in particular to a novel hand hole sealing device.

Background

By hand hole is meant an open cell structure for a person's hand or tool to reach into the device for installation, inspection or maintenance.

The utility model patent with the publication number of CN210242261U discloses a single-cone spiral belt dryer, which comprises a dryer shell, wherein the dryer shell is of a cone-shaped structure, the dryer shell comprises an upper shell and a lower shell, the upper shell is arranged on the lower shell, a cavity is formed between the upper shell and the lower shell, and an executing mechanism, a dust catcher and a pipeline condensate water discharging device are arranged at the top of the upper shell.

The top of the dryer is provided with a hand hole, the hand hole comprises a short pipe and a hand hole cover with a handle, the short pipe is fixed at the top of the dryer shell, the short pipe and the hand hole cover are respectively sleeved with a flange, and the two flanges are connected by using bolts and nuts.

When the inside of the dryer needs to be overhauled, an operator needs to detach the bolt and the nut, the handhole cover needs to be removed from the short pipe, the handhole cover is heavy, the transportation is laborious, the detached handhole cover needs to be specially found out to be placed, and meanwhile, the holes of the flange plate on the handhole cover need to be aligned with the holes of the flange plate on the short pipe when the handhole cover is installed, so that the operation is inconvenient.

Disclosure of utility model

In order to facilitate the use of hand holes, the application provides a novel hand hole sealing device.

The application provides a novel hand hole sealing device which adopts the following technical scheme:

The utility model provides a novel hand hole is sealed device, includes the nozzle stub, has hand hole lid and the bolt nut subassembly of handle, the terminal pipe is used for installing on engine body shell, coaxial sleeve is established on the nozzle stub and is fixed with lower ring flange, the coaxial sleeve of hand hole lid tip is established and is fixed with the ring flange, the bolt nut subassembly is used for going up ring flange and lower ring flange fixed connection, still includes connecting rod and lower connecting rod, the one end of going up the connecting rod is fixed on last ring flange, the one end of lower connecting rod is fixed on lower ring flange, the other end of going up connecting rod and lower connecting rod articulates together each other around the axis direction of perpendicular to ring flange and lower ring flange.

By adopting the technical scheme, when the inside of the machine body is overhauled, an operator only needs to apply force on the handle after disassembling the bolt and nut assembly, the handhole cover is turned over and opened, the movement of the handhole cover is limited in a certain range, and the operator does not need to move the handhole cover any more; meanwhile, after maintenance is finished, the hand hole cover is turned over, the upper flange plate can be automatically aligned with the lower flange plate, the upper flange plate and the lower flange plate are conveniently locked, and finally the purpose of convenient hand hole use is achieved.

Preferably, the bolt and nut assembly comprises a plurality of bolts and a plurality of nuts, and one ends of the bolts sequentially penetrate through holes in the upper flange plate and the lower flange plate and are connected to the corresponding nuts in a threaded mode.

Preferably, a plurality of grooves matched with the nuts are formed in the bottom surface of the lower flange plate along the circumferential direction, the grooves are respectively communicated with a plurality of holes of the lower flange plate, and the nuts are fixed in the corresponding grooves.

By adopting the technical scheme, when the upper flange plate and the lower flange plate are connected, as the nuts are fixed in the corresponding grooves, the threaded connection of the bolts and the nuts can be realized only by rotating the bolts, and the clamping force generated by the bolts and the nuts enables the upper flange plate and the lower flange plate to be mutually abutted; the nut can not break away from the lower flange plate alone after the bolt and the nut are disassembled, so that the loss probability of nut parts can be reduced.

Preferably, the outer wall of the bolt is fixedly sleeved with a limiting ring, the inner wall of the hole of the upper flange plate is provided with a first annular groove, the limiting ring slides in the corresponding first annular groove along the axial direction parallel to the corresponding hole, and the limiting ring rotates in the corresponding first annular groove.

Through adopting above-mentioned technical scheme, the cooperation of spacing ring and first annular is under the prerequisite that does not influence bolt and nut complex, carries out spacingly to the bolt for the bolt can't break away from the ring flange, and the bolt can not break away from the ring flange alone after the bolt nut dismantles, can reduce the loss probability of bolt part.

Preferably, the handle is located at one end of the top surface of the handhole cover, which is far away from the hinge position of the upper connecting rod and the lower connecting rod.

Through adopting above-mentioned technical scheme, the greater the distance of handle distance upper connecting rod and lower connecting rod articulated department, the longer the arm of force, the more relaxed the process that operating personnel application of force drove the handhole door to overturn on hand.

Preferably, the device further comprises a buffer device, wherein the buffer device is used for buffering the process of opening the hand hole cover until the handle abuts against the machine body shell, the buffer device comprises two springs and two limiting blocks, the handle comprises a force application handle, two sliding rods and two fixing rods, the two fixing rods are vertically fixed on the top surface of the hand hole cover, and a sliding groove is formed in the top surface of the fixing rod along the length direction of the fixing rod; the two sliding rods are respectively and vertically fixed at two ends of the force application handle, the two sliding rods respectively correspond to the two sliding grooves, and the sliding rods slide in the corresponding sliding grooves along the depth direction of the sliding grooves. The two limiting blocks are respectively fixed on the outer walls of the two sliding rods, limiting grooves are formed in the side walls of the sliding grooves, and the limiting blocks slide in the limiting grooves along the sliding direction parallel to the sliding rods. The holding groove that supplies the spring to hold has been seted up on the one end terminal surface of slide bar orientation spout diapire, the both ends of spring butt respectively on holding groove roof and spout diapire, the spring is compression state all the time.

By adopting the technical scheme, when an operator lifts the force application handle, the force application handle acts on the bottom end of the force application handle, and the bottom end of the force application handle is made of hard materials, so that the operator can apply force more to open the handhole cover; when the handhole cover is opened, the force application handle is firstly abutted on the machine body shell, and the opening of the handhole cover can be buffered due to the fact that the soft material is used at one end, far away from the handhole cover, of the force application handle and then the spring is matched.

Preferably, a second annular groove is coaxially formed in the top surface of the lower flange plate, and a sealing ring is arranged in the second annular groove, and when the upper flange plate is abutted to the lower flange plate, the sealing ring is abutted to the bottom surface of the upper flange plate.

Through adopting above-mentioned technical scheme, the leakproofness when last ring flange and lower ring flange butt can be improved in the setting of sealing washer, improves sealed effect.

The technical effects of the utility model are mainly as follows:

1. when the inside of the machine body is overhauled, an operator only needs to apply force on the handle after disassembling the bolt and nut assembly, the handhole cover is turned over and opened, the movement of the handhole cover is limited in a certain range, and the operator does not need to move the handhole cover any more; meanwhile, after maintenance is finished, the hand hole cover is turned over, the upper flange plate can be automatically aligned with the lower flange plate, the upper flange plate and the lower flange plate are conveniently locked, and finally the purpose of convenient use of the hand hole is achieved;

2. According to the utility model, the handle is arranged at one end of the top surface of the handhole cover, which is far away from the hinge position of the upper connecting rod and the lower connecting rod, and the longer the distance between the handle and the hinge position of the upper connecting rod and the lower connecting rod is, the longer the force arm is, the easier the operator applies force to the handle to drive the handhole cover to turn;

3. According to the utility model, the sealing ring is arranged, so that the sealing performance of the upper flange plate and the lower flange plate when being abutted can be improved, and the sealing effect is improved.

Drawings

Fig. 1 is a top view of a hand hole closure device according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a hand hole closure device according to an embodiment of the present application.

Fig. 3 is an enlarged view at a in fig. 2.

Reference numerals illustrate: 1. a short pipe; 11. a lower flange; 111. a groove; 112. a second ring groove; 12. an eyelet; 13. a seal ring; 14. an upper connecting rod; 15. a lower connecting rod; 2. a hand hole cover; 21. an upper flange plate; 211. a first ring groove; 3. a handle; 31. a force application handle; 32. a slide bar; 321. a receiving groove; 33. a fixed rod; 331. a chute; 332. a limit groove; 41. a bolt; 411. a limiting ring; 42. a nut; 5. a buffer device; 51. a spring; 52. and a limiting block.

Description of the embodiments

The present application will be further described in detail below with reference to fig. 1-3, so that the technical solution of the present application can be more easily understood and mastered.

The embodiment of the application discloses a novel hand hole sealing device.

Referring to fig. 1-3, a novel hand hole sealing device of the present embodiment includes a short pipe 1, a hand hole cover 2 with a handle 3, and a bolt and nut assembly, wherein an end pipe is generally fixedly installed at the top end of a housing, a lower flange 11 with a plurality of holes 12 is coaxially sleeved and fixed at the top end of the short pipe 1, an upper flange 21 with a plurality of holes 12 is coaxially sleeved and fixed at the end of the hand hole cover 2, and the bolt and nut assembly is used for fixedly connecting the upper flange 21 with the lower flange 11.

Referring to fig. 1-3, a novel hand hole sealing device of the present embodiment further includes an upper connecting rod 14 and a lower connecting rod 15, wherein one end of the upper connecting rod 14 is fixed on the outer wall of the upper flange 21, one end of the lower connecting rod 15 is fixed on the outer wall of the lower flange 11, the other ends of the upper connecting rod 14 and the lower connecting rod 15 are hinged together, and the hinge axis direction is perpendicular to the axis directions of the upper flange 21 and the lower flange 11.

Referring to fig. 1 to 3, when the inside of the machine body is overhauled, after an operator dismantles the bolt and nut assembly, the operator only needs to apply force on the handle 3 to turn over and open the handhole cover 2, the movement of the handhole cover 2 is limited within a certain range, and the operator does not need to move the handhole cover 2 any more; meanwhile, after maintenance is finished, the hand hole cover 2 is turned over, the upper flange plate 21 can be automatically aligned with the lower flange plate 11, the upper flange plate 21 and the lower flange plate 11 are conveniently locked, and finally the purpose of convenient hand hole use is achieved.

Referring to fig. 1 to 3, the bolt-and-nut assembly includes a plurality of bolts 41 and a plurality of nuts 42, and one ends of the bolts 41 are sequentially passed through the holes 12 of the upper and lower flanges 21 and 11 and are then screwed to the corresponding nuts 42. The clamping force generated by the bolts 41 and nuts 42 tightens the upper flange 21 and the lower flange 11 against each other.

Referring to fig. 1-3, a plurality of grooves 111 matching with the nuts 42 are formed on the bottom surface of the lower flange 11 in the circumferential direction, the plurality of grooves 111 respectively correspond to and communicate with the plurality of holes 12 of the lower flange 11, and the nuts 42 are fixed in the corresponding grooves 111.

Referring to fig. 1 to 3, when the upper flange 21 and the lower flange 11 are connected, since the nuts 42 are fixed in the corresponding grooves 111, the nuts 42 are not separated from the lower flange 11 alone after the bolts 41 and the nuts 42 are removed, and the loss probability of the parts of the nuts 42 can be reduced.

Referring to fig. 1-3, a limiting ring 411 is coaxially and fixedly sleeved on the outer wall of the bolt 41, a first annular groove 211 is formed on the inner wall of the hole 12 of the upper flange 21, the limiting ring 411 can slide in the corresponding first annular groove 211 along the axial direction parallel to the corresponding hole 12, and the limiting ring 411 can also rotate in the corresponding first annular groove 211.

Referring to fig. 1-3, the cooperation of the limiting ring 411 and the first ring groove 211 limits the bolt 41 on the premise that the cooperation of the bolt 41 and the nut 42 is not affected, so that the bolt 41 cannot be separated from the upper flange 21, the bolt 41 cannot be separated from the upper flange 21 alone after the nut 42 of the bolt 41 is disassembled, and the loss probability of parts of the bolt 41 can be reduced.

Referring to fig. 1-3, a second ring groove 112 is coaxially formed on the top surface of the lower flange 11, and a sealing ring 13 is installed in the second ring groove 112, and when the upper flange 21 abuts against the lower flange 11, the sealing ring 13 abuts against the bottom surface of the upper flange 21. The provision of the seal ring 13 can improve the sealing performance when the upper flange 21 and the lower flange 11 are in contact with each other, and can improve the sealing effect.

Referring to fig. 1-3, the handle 3 is located at an end of the top surface of the handhole cover 2 remote from the hinge of the upper and lower connecting rods 14, 15. The larger the distance between the handle 3 and the hinge of the upper connecting rod 14 and the lower connecting rod 15 is, the longer the force arm is, and the easier the operator applies force to the handle 3 to drive the handhole cover 2 to turn over.

Referring to fig. 1-3, the novel hand hole sealing device of the present embodiment further includes a buffering device 5, where the buffering device 5 is used for buffering the process of opening the hand hole cover 2 until the handle 3 abuts against the body casing. The buffer device 5 comprises two springs 51 and two limiting blocks 52, the handle 3 comprises a force application handle 31, two sliding rods 32 and two fixing rods 33, the two fixing rods 33 are vertically fixed on the top surface of the handhole cover 2, and a sliding groove 331 is formed in the top surface of the fixing rod 33 along the length direction of the fixing rod 33; the two sliding rods 32 are respectively and vertically fixed at two ends of the force application handle 31, the two sliding rods 32 respectively correspond to the two sliding grooves 331, and the sliding rods 32 slide in the corresponding sliding grooves 331 along the depth direction of the sliding grooves 331.

Referring to fig. 1-3, two limiting blocks 52 are respectively fixed on the outer walls of two sliding rods 32, limiting grooves 332 are formed in the side walls of the sliding grooves 331, and the limiting blocks 52 slide in the limiting grooves 332 along the sliding direction parallel to the sliding directions of the sliding rods 32. The slide bar 32 is provided with a holding groove 321 for holding the springs 51 towards the end face of one end of the bottom wall of the slide groove 331, two springs 51 respectively correspond to the two holding grooves 321, two ends of each spring 51 respectively abut against the top wall of the holding groove 321 and the bottom wall of the slide groove 331, and the springs 51 are always in a compressed state.

Referring to fig. 1 to 3, the end of the force applying handle 31 away from the handhole cover 2 is made of a deformable material such as silica gel or rubber, and when an operator lifts the force applying handle 31, the force applying handle 31 acts on the bottom end of the force applying handle 31, and the bottom end of the force applying handle 31 is made of a hard material, so that the operator can apply force more to open the handhole cover 2; when the handhole cover 2 is opened, the force application handle 31 is firstly abutted against the machine body shell, and the end, far away from the handhole cover 2, of the force application handle 31 is made of soft materials, and then the spring 51 is matched, so that the opening of the handhole cover 2 can play a buffering role.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims

1. The utility model provides a novel hand hole is sealed device, includes nozzle stub (1), has hand hole lid (2) and bolt nut subassembly of handle (3), nozzle stub (1) are used for installing on engine body shell, coaxial sleeve is fixed with lower ring flange (11) on nozzle stub (1), hand hole lid (2) tip coaxial sleeve is fixed with upper flange (21), bolt nut subassembly is used for with upper flange (21) and lower ring flange (11) fixed connection, its characterized in that: the connecting rod structure is characterized by further comprising an upper connecting rod (14) and a lower connecting rod (15), wherein one end of the upper connecting rod (14) is fixed on the upper flange plate (21), one end of the lower connecting rod (15) is fixed on the lower flange plate (11), and the other ends of the upper connecting rod (14) and the lower connecting rod (15) are mutually hinged together around the axial direction perpendicular to the upper flange plate (21) and the lower flange plate (11).

2. A novel hand hole closure device according to claim 1, wherein: the bolt and nut assembly comprises a plurality of bolts (41) and a plurality of nuts (42), wherein one end of each bolt (41) sequentially penetrates through holes (12) in the upper flange plate (21) and the lower flange plate (11) and is connected to the corresponding nut (42) in a threaded mode.

3. A novel hand hole closure device according to claim 2, wherein: a plurality of grooves (111) matched with the nuts (42) are formed in the bottom surface of the lower flange plate (11) along the circumferential direction, the grooves (111) are respectively communicated with a plurality of holes (12) of the lower flange plate (11), and the nuts (42) are fixed in the corresponding grooves (111).

4. A novel hand hole closure device according to claim 2, wherein: the limiting ring (411) is fixedly sleeved on the outer wall of the bolt (41), a first annular groove (211) is formed in the inner wall of the hole (12) of the upper flange plate (21), the limiting ring (411) slides in the corresponding first annular groove (211) along the axial direction parallel to the corresponding hole (12), and the limiting ring (411) rotates in the corresponding first annular groove (211).

5. A novel hand hole closure device according to claim 1, wherein: the handle (3) is positioned at one end of the top surface of the hand hole cover (2) far away from the hinge joint of the upper connecting rod (14) and the lower connecting rod (15).

6. The novel hand hole closure device of claim 5, wherein: the hand hole cover is characterized by further comprising a buffer device (5), wherein the buffer device (5) is used for buffering the hand hole cover (2) when the hand hole cover (2) is opened to the position where the handle (3) is abutted against the machine body shell, the buffer device (5) comprises two springs (51) and two limiting blocks (52), the handle (3) comprises a force application handle (31), two sliding rods (32) and two fixing rods (33), the two fixing rods (33) are vertically fixed on the top surface of the hand hole cover (2), and a sliding groove (331) is formed in the top surface of the fixing rods (33) along the length direction of the fixing rods (33); the two sliding rods (32) are respectively and vertically fixed at two ends of the force application handle (31), the two sliding rods (32) respectively correspond to the two sliding grooves (331), and the sliding rods (32) slide in the corresponding sliding grooves (331) along the depth direction of the sliding grooves (331); the two limiting blocks (52) are respectively fixed on the outer walls of the two sliding rods (32), limiting grooves (332) are formed in the side walls of the sliding grooves (331), and the limiting blocks (52) slide in the limiting grooves (332) along the sliding direction parallel to the sliding rods (32); an accommodating groove (321) for accommodating the spring (51) is formed in the end face of one end of the sliding rod (32) facing the bottom wall of the sliding groove (331), two ends of the spring (51) are respectively abutted against the top wall of the accommodating groove (321) and the bottom wall of the sliding groove (331), and the spring (51) is always in a compressed state; the end of the force application handle (31) far away from the hand hole cover (2) is made of deformable materials.

7. A novel hand hole closure device according to claim 1, wherein: a second annular groove (112) is coaxially formed in the top surface of the lower flange plate (11), a sealing ring (13) is arranged in the second annular groove (112), and when the upper flange plate (21) is abutted to the lower flange plate (11), the sealing ring (13) is abutted to the bottom surface of the upper flange plate (21).