CN211573048U

CN211573048U - Fire hydrant door connecting piece and fire hydrant door

Info

Publication number: CN211573048U
Application number: CN201921773643.4U
Authority: CN
Inventors: 邓光辉; 范飞朋; 赵瑞轩; 容文平; 吴伟; 李圆圆; 罗良师
Original assignee: Shenzhen Literary Decoration Design Engineering Co ltd
Current assignee: Shenzhen Literary Decoration Design Engineering Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-09-25
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a connecting piece of a fire hydrant door and the fire hydrant door, wherein, the connecting piece comprises a connecting arm, a first rotating shaft and a second rotating shaft, and two ends of the connecting arm are bent towards the same side and are arranged at intervals; the first rotating shaft comprises a first section and a second section which are connected with each other, the first section is used for being fixed with the wall pedestal, the second section is positioned above the second section, and one end of the connecting arm is sleeved on the second section; the second rotating shaft comprises a third section and a fourth section which are connected with each other, the third section is located below the fourth section, the third section is sleeved with the other end of the connecting arm, and the fourth section is used for being connected with the hydrant door. The utility model discloses technical scheme can make things convenient for dismouting fire hydrant door.

Description

Fire hydrant door connecting piece and fire hydrant door

Technical Field

The utility model relates to a fire hose technical field, in particular to connecting piece and fire hydrant door of fire hydrant door.

Background

At present, in the decoration engineering project, the building adopts more stone veneers, and in order to keep the consistency of wall surface stones, the fire box is usually manufactured into a hidden door mode so as to ensure the attractiveness of the wall surface. But present fire hydrant door is mainly installed on the wall mounting bracket through the hinge, is about to pass through welding or fix with screw on the fire hydrant door on one side of hinge, and the another side passes through welding or fix with screw on the wall mounting bracket. Thus, even in the mode of fixing the hinge by the screws, the screws need to be screwed down or unscrewed one by one when the hydrant door is disassembled, so that the disassembly and the assembly of the hydrant door are troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a connecting piece of fire hydrant door, aims at making things convenient for dismouting fire hydrant door.

In order to achieve the above object, the utility model provides a connecting piece of fire hydrant door, include:

the two ends of the connecting arms are bent towards the same side and are arranged at intervals;

the first rotating shaft comprises a first section and a second section which are connected with each other, the first section is used for being fixed with the wall pedestal, the second section is positioned above the second section, and one end of the connecting arm is sleeved on the second section; and the number of the first and second groups,

the second rotating shaft comprises a third section and a fourth section which are connected with each other, the third section is located below the fourth section, the third section is sleeved with the other end of the connecting arm, and the fourth section is used for being connected with the hydrant door.

Optionally, the connecting arm includes a connecting plate and two shaft sleeves, two ends of the connecting plate are bent towards the same side, the two shaft sleeves are respectively disposed at two ends of the connecting plate, and the connecting plate is welded to the shaft sleeves.

Optionally, the outer diameter of the first section is greater than the outer diameter of the second section; and/or the outer diameter of the fourth section is larger than that of the third section.

Optionally, the first section is welded to the wall pedestal; and/or, the fourth section is welded with the hydrant door.

Optionally, the connecting arm further includes a reinforcing plate, the reinforcing plate is identical to the connecting plate in shape and is arranged in the thickness direction of the connecting plate, the reinforcing plate is connected with the connecting plate, and the reinforcing plate and the connecting plate are connected with the shaft sleeve.

Optionally, the reinforcing plate and the connecting plate are arranged at intervals, the connecting arm further comprises a connecting portion, the connecting portion extends from one end of the connecting plate to the other end of the connecting plate, and the connecting portion is connected with the reinforcing plate and the connecting plate.

Optionally, the connecting member further includes a first bearing and a second bearing, the first bearing and the second bearing are both planar bearings, the first bearing is sleeved on the second section and is abutted against the first section and the first sleeve respectively, and the second bearing is sleeved on the third section and is abutted against the fourth section and the second sleeve respectively.

Optionally, an accommodating groove is formed in the inner peripheral wall of the first shaft sleeve, the accommodating groove extends in a ring shape along the circumferential direction of the first shaft sleeve, the accommodating groove penetrates through an end face, facing the first section, of the first shaft sleeve, the first bearing is arranged in the accommodating groove, and the first bearing protrudes out of the end face of the first shaft sleeve; a first groove is formed in the end face, facing the first section, of the first shaft sleeve and extends along the circumferential direction of the first shaft sleeve; the first groove is provided with a first side wall and a second side wall which are arranged at intervals along the circumferential direction of the first shaft sleeve, and the first side wall inclines towards the direction far away from the second side wall; the terminal surface of first section corresponds first recess is equipped with first convex part, first convex part can stretch into in the first recess, first convex part has the edge first side and the second side that the circumference interval of first pivot was arranged, first side is towards keeping away from the direction slope of second side, first side can with first lateral wall butt, just first recess is followed the length that the circumference of first axle sleeve extended is greater than first convex part is followed the length that the circumference of first pivot extended, just first convex part is relative the highly be less than or equal to the degree of depth of first recess of the terminal surface of first section.

Optionally, an accommodating groove is formed in the inner peripheral wall of the second sleeve, the accommodating groove extends in a ring shape along the circumferential direction of the second sleeve, the accommodating groove penetrates through an end face of the second sleeve, the end face faces the fourth section, the second bearing is arranged in the accommodating groove, and the second bearing protrudes out of the end face of the second sleeve; a second groove is formed in the end face, facing the fourth section, of the second shaft sleeve and extends in the circumferential direction of the second shaft sleeve, the second groove is provided with a third side wall and a fourth side wall which are arranged at intervals in the circumferential direction of the second shaft sleeve, and the third side wall is inclined towards the direction far away from the fourth side wall; the end face of the fourth section is provided with second convex parts corresponding to the second groove, the second convex parts can extend into the second groove, the second convex parts are provided with third side faces and fourth side faces which are arranged at intervals along the circumferential direction of the second rotating shaft, the third side faces incline towards the direction far away from the fourth side faces, the third side faces can be abutted against the third side walls, the length of the second groove extending along the circumferential direction of the second shaft sleeve is larger than that of the second convex parts extending along the circumferential direction of the second rotating shaft, and the height of the second convex parts relative to the end face of the fourth section is smaller than or equal to the depth of the second groove.

The utility model also provides a fire hydrant door, which comprises a door body and a connecting piece, wherein the connecting piece comprises a connecting arm, a first rotating shaft and a second rotating shaft, and two ends of the connecting arm are bent towards the same side and are arranged at intervals; the first rotating shaft comprises a first section and a second section which are connected with each other, the first section is used for being fixed with the wall pedestal, the second section is positioned above the second section, and one end of the connecting arm is sleeved on the second section; the second rotating shaft comprises a third section and a fourth section which are connected with each other, the third section is located below the fourth section, the third section is sleeved with the other end of the connecting arm, and the fourth section is used for being connected with the hydrant door. The connecting piece is rotatably connected with the door body and is also rotatably connected with the wall base frame.

The utility model discloses technical scheme is through being "U" shape setting with same side bending with the both ends court of linking arm, rotates the both ends of linking arm with first pivot, second pivot respectively again and is connected, and during the installation fire hydrant door, first pivot is fixed on the wall bed frame, and the second pivot is fixed on the fire hydrant door. The hydrant door can rotate relative to the connecting arm, and the hydrant door and the connecting arm can rotate together relative to the wall pedestal. Through setting up the second section in first section top, during the installation, only need overlap the one end top-down of linking arm at the second section, can hang the connecting piece on the wall bed frame, likewise, set up the third section in fourth section below, also can insert the other end of linking arm with third section top-down, so can hang the fire hydrant door on the linking arm, when tearing open the fire hydrant door in addition, only need upwards lift the fire hydrant door and can pull down, greatly make things convenient for the dismouting of fire hydrant door. And an anti-drop mechanism is not needed, so that the structure can be simplified. In addition, the double-rotating-shaft type of the first rotating shaft and the second rotating shaft is arranged, so that the hydrant door can be well supported to rotate, the first rotating shaft and the second rotating shaft can rotate simultaneously when the hydrant door is rotated, even if the weight of the hydrant door is large, the connecting piece can also well support the hydrant door to rotate, and the stability of the hydrant door is improved. And when the fire hydrant door rotated certain angle through first pivot relative wall, the fire hydrant door can also continue to rotate certain angle through the relative wall of second pivot, compares in the form that only sets up a pivot, has increased the turned angle of fire hydrant door, can make things convenient for operating personnel to use the fire hydrant.

Drawings

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

FIG. 1 is a schematic view of an installation structure of an embodiment of a connecting member for a hydrant door according to the present invention;

FIG. 2 is an exploded view of the coupling of the hydrant door of FIG. 1;

FIG. 3 is a schematic structural view of the hydrant door and the connecting member when the hydrant door is in a closed state;

fig. 4 is a schematic structural view of the connecting member of the hydrant door of the present invention when the hydrant door is fully opened.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Connecting arm	30	Second rotating shaft
11	Connecting plate	31	Third stage
				12	First shaft sleeve	32	Fourth stage
13	Second shaft sleeve	40	Fire hydrant door
				20	First rotating shaft	41	Plate body
21	First stage	42	Mounting framework
				22	Second section	50	Wall base frame

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a connecting piece of fire hydrant door for connect wall bed frame and fire hydrant door.

In the embodiment of the present invention, as shown in fig. 1 to 4, the connecting member of the hydrant door includes a connecting arm 10, a first rotating shaft 20 and a second rotating shaft 30, and both ends of the connecting arm 10 are bent toward the same side and are arranged at intervals. The first shaft 20 includes a first section 21 and a second section 22 connected to each other, the first section 21 is used to fix with the wall pedestal 50, the second section 22 is located above the second section 22, and one end of the connecting arm 10 is sleeved on the second section 22. The second shaft 30 includes a third section 31 and a fourth section 32 connected to each other, the third section 31 is located below the fourth section 32, the other end of the connecting arm 10 is sleeved on the third section 31, and the fourth section 32 is used for connecting with the hydrant door 40.

Specifically, the connecting arm 10 includes a connecting plate 11 and two shaft sleeves, two ends of the connecting plate 11 are bent towards the same side, the two shaft sleeves are respectively arranged at two ends of the connecting plate 11, and the connecting arm 10 is in a 'U' shape. The shaft sleeve can be arranged in a through hole or a blind hole. For convenience of description, the two sleeves are named as a first sleeve 12 and a second sleeve 13, the first sleeve 12 is sleeved on the second section 22, and the second sleeve 13 is sleeved on the third section 31. Further, the first and fourth segments 21 and 32 may have a cylindrical or prismatic shape.

When the first sleeve 12 is fitted over the second section 22, the connecting arm 10 can rotate relative to the wall pedestal 50 about the second section 22, and when the second sleeve 13 is fitted over the third section 31, the hydrant door 40 can rotate relative to the connecting arm 10 about the third section 31. When the first rotating shaft 20 and the second rotating shaft 30 are connected through the connecting arm 10, the hydrant door 40 can rotate a certain angle relative to the connecting arm 10 through the second rotating shaft 30, and meanwhile, the hydrant door 40 can also rotate a certain angle relative to the wall framework through the first rotating shaft 20 together with the connecting arm 10, so that the hydrant door 40 can rotate a larger angle relative to the wall framework 50. For example, the hydrant door 40 can be rotated 90 ° relative to the connecting arm 10 by the second shaft 30, while the hydrant door 40 and the connecting arm 10 are rotated together 90 ° relative to the wall pedestal 50 by the first shaft 20, i.e., the hydrant door 40 can be rotated 180 ° relative to the wall pedestal 50 so that the hydrant door 40 can be fully opened.

The connecting arm 10 is located inside the hydrant door 40 and the wall pedestal 50 and inside the hydrant, i.e. the first shaft 20 is located at the inner edge of the wall pedestal 50, the second shaft 30 is located at the inner edge of the hydrant door 40, and the opposite edges of the wall pedestal 50 and the hydrant door 40 are close to each other without interfering with each other, so that the connecting member can be hidden inside the hydrant. Of course, the connecting arm 10 may also be arranged in a semi-circular or "W" shape.

During installation, the first shaft 20 can be fixed on the wall pedestal 50, that is, the first section 21 is fixed on the wall pedestal 50, and the second section 22 faces upward, and the second shaft 30 is fixed on the hydrant door 40, that is, the fourth section 32 is fixed on the hydrant door 40, and the third section 31 faces downward. Then the first shaft sleeve 12 is sleeved on the second section 22 from top to bottom, so that the connecting arm 10 can be fixed on the wall pedestal 50, and finally the third section 31 on the hydrant door 40 is inserted into the second shaft sleeve 13 from top to bottom, so that the hydrant door 40 can be hung on the connecting arm 10.

The utility model discloses technical scheme is through being "U" shape setting with same side bending with the both ends court of linking arm 10, rotates the both ends of linking arm 10 with first pivot 20, second pivot 30 respectively again and is connected, and during installation fire hydrant door 40, first pivot 20 is fixed on wall bed frame 50, and second pivot 30 is fixed on fire hydrant door 40. That is, the hydrant door 40 can be rotated relative to the connecting arm 10, and the hydrant door 40 and the connecting arm 10 can be rotated together relative to the wall pedestal 50. Through setting up second section 22 in first section 21 top, during the installation, only need to overlap the one end top-down of linking arm 10 at second section 22, can hang the connecting piece on wall bed frame 50, equally, set up third section 31 in fourth section 32 below, also can insert the other end of linking arm 10 with third section 31 top-down, so can hang fire hydrant door 40 on linking arm 10, and when tearing open fire hydrant door 40, only need to lift up fire hydrant door 40 upwards and can pull down, greatly make things convenient for the dismouting of fire hydrant door 40. And an anti-drop mechanism is not needed, so that the structure can be simplified. In addition, the double-shaft type of the first and second

rotating shafts

20 and 30 is provided to better support the rotation of the hydrant door 40, the first and second

rotating shafts

20 and 30 can be rotated simultaneously when the hydrant door 40 is rotated, and the coupling member can better support the rotation of the hydrant door 40 even when the weight of the hydrant door 40 is large, thereby improving the stability of the hydrant door 40. And when the hydrant door 40 rotated certain angle through the relative wall of first pivot 20, the hydrant door 40 can also continue to rotate certain angle through the relative wall of second pivot 30, compare in the form that only sets up a pivot, increased the turned angle of hydrant door 40, can make things convenient for operating personnel to use the fire hydrant.

In one embodiment, the connecting plate 11 is welded to the sleeve. The connecting plate 11 welds with first axle sleeve 12, second axle sleeve 13 respectively promptly, so can guarantee the steadiness of connecting plate 11 with first axle sleeve 12, second axle sleeve 13 respectively, can produce connecting plate 11, first axle sleeve 12 and second axle sleeve 13 respectively moreover, welds connecting plate 11 with first axle sleeve 12, second axle sleeve 13 respectively again, and the structure is comparatively simple, conveniently produces and assembles, is favorable to reduce cost. Of course, in other embodiments, the first sleeve 12, the second sleeve 13 and the connecting plate 11 may be integrally formed, or the first sleeve 12 and the second sleeve 13 may be respectively connected to the connecting plate 11 through a threaded structure.

In one embodiment, the outer diameter of the first section 21 is greater than the outer diameter of the second section 22. Specifically, the inner diameter of the first shaft sleeve 12 is smaller than the outer diameter of the first section 21, and when the first shaft sleeve 12 is sleeved on the second section 22, the first shaft sleeve 12 can abut against the end surface of the first section 21, so that the first shaft sleeve 12 can be supported, and downward movement of the first shaft sleeve 12 is limited. When the outer peripheral surface of the first section 21 is connected to the wall pedestal 50, the gap between the second section 22 and the wall pedestal 50 is relatively large, so that the first sleeve 12 can be smoothly sleeved on the second section 22. In addition, the contact area between the first section 21 and the wall pedestal 50 can be increased, and the fixing effect of the first rotating shaft 20 can be improved. Of course, in other embodiments, a stop may also be provided between the first section 21 and the second section 22, such that the first bushing 12 abuts on the stop, and so on.

In an embodiment, when the outer diameter of the fourth section 32 is larger than the outer diameter of the third section 31, the fourth section 32 can be better supported on the second sleeve 13, and the gap between the third section 31 and the wall base frame 50 is also larger, so that the second sleeve 13 can be smoothly sleeved on the third section 31. Of course, in other embodiments, a stop portion may also be provided between the third segment 31 and the fourth segment 32, such that the second collar 13 abuts on the stop portion, and so on.

In one embodiment, the first section 21 is welded to the wall pedestal 50. So can guarantee the steadiness that first pivot 20 and wall bed frame 50 are connected, can make the shaping respectively first pivot 20 and wall bed frame 50 moreover, with first pivot 20 and wall bed frame 50 welding again, simple structure, convenient production and assembly are favorable to reduce cost. In another embodiment, the fourth section 32 is welded to the hydrant door 40, and the stability of the connection between the second rotary shaft 30 and the hydrant door 40 can be ensured and the cost can be reduced by welding the fourth section 32 to the hydrant door 40. Of course, in other embodiments, the first shaft 20 and the wall pedestal 50 may be integrally formed, the second shaft 30 and the hydrant door 40 may be integrally formed, or the first shaft 20 and the wall pedestal 50 may be fixed by a screw structure, and the second shaft 30 and the hydrant door 40 may be fixed by a screw structure.

In one embodiment, the connecting arm 10 further comprises a reinforcing plate (not shown) having a shape corresponding to the shape of the connecting plate 11 and arranged along the thickness direction of the connecting plate 11, the reinforcing plate and the connecting plate 11 are connected to each other, and both the reinforcing plate and the connecting plate 11 are connected to the bushing. Specifically, the reinforcing plate is also in a "U" shape, the reinforcing plate is located outside or inside the connecting plate 11, two ends of the reinforcing plate are also connected with the first shaft sleeve 12 and the second shaft sleeve 13 respectively, and the reinforcing plate and the connecting plate 11 are also connected integrally with each other. This corresponds to an increase in the thickness of the connecting arm 10, so that the reinforcing plate and the connecting plate 11 together support the hydrant door 40, improving the load-bearing capacity of the connecting arm 10. Moreover, compared with the connecting plate 11 with a larger thickness, when the connecting plate 11 has a defect such as slight deformation or fracture, the defect is easily enlarged, which results in that the bearing performance of the whole connecting arm 10 is greatly reduced, even completely damaged. When the connecting plate 11 and the reinforcing plate are arranged, even if the connecting plate 11 has the defects of fine deformation or fracture and the like, the reinforcing plate can also play a better supporting role, and the reinforcing plate is connected with the connecting plate 11, so that the deformation resistance of the connecting plate 11 is improved, and the possibility of defect expansion of the connecting plate 11 can be effectively reduced.

Wherein the connecting plate 11 and the reinforcing plate may be connected by screws or welded. Of course, in other embodiments, the connecting arm 10 includes two reinforcing plates, both of which have the same shape as the connecting plate 11 and are respectively disposed at the upper edge and the lower edge of the connecting plate 11, and the connecting plate 11 is perpendicular to both of the two reinforcing plates, i.e. the cross section of the connecting arm 10 perpendicular to the extending direction thereof is in an "i" shape. So can further increase linking arm 10's bearing capacity and anti deformability, moreover only need the width of reinforcing plate be greater than the thickness of connecting plate 11 can, can set up the width of reinforcing plate as far as possible for a short time, can reduce the size of reinforcing plate and save material.

In addition, in an embodiment, the reinforcing plate and the connecting plate 11 may be arranged at an interval, the connecting arm 10 further includes a connecting portion, the connecting portion connects the reinforcing plate and the connecting plate 11, the connecting portion extends from one end of the connecting plate 11 to the other end of the connecting plate 11, and is also connected to the two bushings, the connecting portion is plate-shaped and is located between the upper edge and the lower edge of the connecting plate 11, that is, the cross section of the connecting arm 10 perpendicular to the extending direction is "H" shaped. This also reduces the weight of the connecting arm 10 while ensuring the strength of the connecting arm 10. Of course, in other embodiments, the number of the connecting portions may be two, and the two connecting portions are arranged at intervals along the up-down direction of the connecting arm 10, so that the connection stability between the reinforcing plate and the connecting plate 11 can be further improved.

In an embodiment, the connecting element further includes a first bearing (not shown), the first bearing is a plane bearing, and the first bearing is sleeved on the second section 22 and is abutted against the first section 21 and the first sleeve 12 respectively. Therefore, friction between the connecting piece and the first section 21 when the connecting piece rotates relative to the first rotating shaft 20 is avoided, abrasion of the first shaft sleeve 12 and the first rotating shaft 20 can be reduced, labor can be saved when the fire hydrant door 40 is rotated, and the fire hydrant door 40 can be rotated more easily. In addition, when the first bearing is worn seriously, only the first bearing needs to be replaced, compared with the situation of replacing the first rotating shaft and the connecting arm 10, the cost can be reduced. Wherein, the first bearing can be a plane roller bearing or a plane ball bearing.

In an embodiment, the inner peripheral wall of the first shaft sleeve is provided with a receiving groove (not shown), the receiving groove extends in a ring shape along the circumferential direction of the first shaft sleeve, the receiving groove penetrates through an end surface of the first shaft sleeve 12 facing the first section 21, the first bearing is disposed in the receiving groove, and the first bearing protrudes from the end surface of the first shaft sleeve 12, that is, the height of the first bearing is greater than the depth of the receiving groove. Therefore, the first bearing is prevented from being exposed to the outside too much, and the first bearing can be better protected.

The end face of the first sleeve is provided with a first groove (not shown) extending in the circumferential direction of the first sleeve 12. The first groove has a first sidewall and a second sidewall arranged at intervals in the circumferential direction of the first sleeve 12, and the first sidewall is inclined toward a direction away from the second sidewall. The end face of the first section 21 is provided with a first protrusion (not shown) corresponding to the first groove, the first protrusion can extend into the first groove, and the height of the first protrusion relative to the end face of the first section is less than or equal to the depth of the first groove. The first projection has a first side surface and a second side surface arranged at intervals in the circumferential direction of the first rotating shaft 20, the first side surface is inclined in a direction away from the second side surface, and the first side surface can abut against the first side wall. And the length of the first groove extending along the circumferential direction of the first shaft sleeve 12 is greater than the length of the first convex part extending along the circumferential direction of the first rotating shaft 20, specifically, the arc length of the first groove along the circumferential direction of the first shaft sleeve 12 is greater than the sum of one quarter of the circumferential length of the first shaft sleeve 12 and the length of the first convex part along the circumferential direction of the first rotating shaft 20, so as to ensure that the first convex part can rotate at least 90 ° in the first groove. Of course, in other embodiments, the first recess may be disposed in the first section 21 and the first protrusion may be disposed in the first sleeve 12. In addition, the accommodating groove may be provided in the first stage 21.

When the first sleeve 12 is rotated, the first side wall can slide on the first side surface, so that the first convex part can extend into or out of the first groove. That is, the first sleeve 12 has a first state of rotating to the first protrusion inside the first recess and a second state of rotating to the first protrusion outside the first recess. In the first state, the end surface of the first segment 21 abuts against the first bearing, the first segment 21 is spaced from the first sleeve 12, i.e., the first side wall is spaced from the first side surface, and the first protrusion is spaced from the bottom of the first groove. The friction between the first shaft sleeve 12 and the first section 21 is avoided, and the fire hydrant door 40 can be opened and closed in a labor-saving manner. In the second state, the first convex portion abuts against the end surface of the first sleeve 12, that is, the first sleeve 12 is supported on the first convex portion, so that the first bearing is spaced from the end surface of the first section 21, and the first bearing is prevented from bearing the weight of the hydrant door 40 all the time and reducing the service life. It can be appreciated that the hydrant will normally be idle for a long time, i.e. the hydrant door 40 will normally be closed for a long time, and by having the hydrant door 40 in the closed state and at the same time having the first bushing 12 in the second state, it is possible to avoid the situation that the first bearing also bears the weight of the hydrant door 40 when the hydrant door 40 is closed, greatly improving the service life of the first bearing. When the hydrant door 40 is opened, the first shaft sleeve 12 rotates, so that the first convex part gradually slides into the first groove to be in the first state, the first shaft sleeve 12 and the hydrant door 40 can be supported by the first bearing to rotate, and the hydrant door 40 can be conveniently opened.

In order to ensure that the first shaft sleeve 12 is stressed uniformly with the first section 21 when rotating, and the rotating effect is improved, in an embodiment, the number of the first grooves is two, the two first grooves are uniformly distributed along the circumferential direction of the first shaft sleeve 12, the number of the first convex parts is also two, and the two first convex parts are in one-to-one correspondence with the two first grooves.

In an embodiment, the connecting element further includes a second bearing (not shown), the second bearing is a plane bearing, and the second bearing is sleeved on the third section 31 and is abutted against the fourth section 32 and the second sleeve 13 respectively. So can reduce the relative connecting piece of fire hydrant door 40 when rotating the second shaft cover 13 and the fourth section 32 between frictional force, can reduce the wearing and tearing of second shaft cover 13 and second pivot 30, can be laborsaving when rotating fire hydrant door 40 moreover, rotate fire hydrant door 40 more easily. Wherein, the second bearing can be a plane roller bearing or a plane ball bearing. In an embodiment, the inner peripheral wall of the second sleeve is provided with a receiving groove (not shown) extending in a ring shape along the circumferential direction of the second sleeve 13, the receiving groove penetrates through an end surface of the second sleeve 13 facing the fourth section 32, the second bearing is disposed in the receiving groove, and the second bearing protrudes from the end surface of the second sleeve 13. The height of the second bearing is larger than the depth of the containing groove, so that the second bearing is prevented from being exposed outside too much, and the second bearing can be well protected.

The end face of the second sleeve 13 facing the fourth section 32 is provided with a second groove (not shown) extending in the circumferential direction of the second sleeve 13. The second groove has a third sidewall and a fourth sidewall arranged at intervals in the circumferential direction of the second sleeve 13, and the third sidewall is inclined in a direction away from the fourth sidewall. The end surface of the fourth section 32 is provided with a second protrusion (not shown) corresponding to the second groove, the second protrusion can extend into the second groove, and the height of the second protrusion relative to the end surface of the fourth section 32 is less than or equal to the depth of the second groove. The second projection has a third side surface and a fourth side surface arranged at intervals in the circumferential direction of the second rotating shaft 30, the third side surface is inclined in a direction away from the fourth side surface, and the third side surface can abut against the third side wall. And the length of the second groove extending along the circumferential direction of the second sleeve 13 is greater than the length of the second protrusion extending along the circumferential direction of the second rotating shaft 30, specifically, the arc length of the second groove along the circumferential direction of the second sleeve 13 is greater than the sum of one quarter of the circumferential length of the second sleeve 13 and the length of the second protrusion along the circumferential direction of the second rotating shaft 30, so as to ensure that the second protrusion can rotate at least 90 ° in the second groove. Of course, in other embodiments, the second recess may be provided in the fourth section 32 and the second protrusion may be provided in the second bushing 13. In addition, the housing groove may be provided in the fourth stage 32.

When the second bushing 13 is rotated, the third sidewall can be made to slide on the third side surface, so that the second protrusion can extend into or out of the second groove. That is, the second hub 13 has a third state rotated to the second projection being located inside the second recess, and a fourth state rotated to the second projection being located outside the second recess. In the third state, the end surface of the fourth segment 32 abuts against the second bearing, and the second bearing protrudes from the end surface of the third segment 31, so that the fourth segment 32 is spaced from the second sleeve 13, i.e., the third side wall is spaced from the third side surface, and the second protrusion is spaced from the groove bottom of the second groove. Friction between the second shaft sleeve 13 and the fourth section 3222 is avoided, and the hydrant door 40 can be opened and closed in a labor-saving manner. In the fourth state, the second projection abuts against the end face of the second bushing 13, that is, the second projection is supported on the second bushing 13, so that the second bearing is spaced from the end face of the fourth section 32, and the second bearing is prevented from bearing the weight of the hydrant door 40 all the time and causing a reduction in service life. And through being in the closed condition with fire hydrant door 40 for second bushing 13 is in the fourth state, can avoid fire hydrant door 40 also to bear the condition of the weight of fire hydrant door 40 when closing, has greatly improved the life of second bearing. When the hydrant door 40 is opened, the second bushing 13 rotates, so that the second protrusion gradually slides into the second groove to be in a third state, the second bushing 13 and the hydrant door 40 can be supported by the second bearing to rotate, and the hydrant door 40 can be conveniently opened.

In order to ensure that the second sleeve 13 is uniformly stressed with the fourth section 3222 when rotating, and to improve the rotating effect, in an embodiment, the number of the second grooves is two, the two second grooves are uniformly distributed along the circumferential direction of the second sleeve 13, the number of the second protrusions is also two, and the two second protrusions correspond to the two second grooves one to one.

The utility model discloses still provide a fire hydrant door 40, this fire hydrant door 40 is including the connecting piece of the door body and fire hydrant door, and the concrete structure of the connecting piece of this fire hydrant door refers to above-mentioned embodiment, because this fire hydrant door 40 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and it is no longer repeated here one by one. Wherein, the connecting piece is connected with the door body rotation, and the connecting piece still is used for being connected with wall bed frame 50 rotation.

In one embodiment, the hydrant door 40 includes a mounting frame 42 and a plate body 41 disposed on the mounting frame 42, the connecting member is connected to the mounting frame 42, and the mounting frame 42 is a metal member. It can be understood that when the plate body 41 is made of stone, if the first and second rotating shafts of the connecting member are directly fixed on the plate body 41, not only the technical difficulty is high, but also the fixing effect is poor. Therefore, the plate body 41 is firstly installed on the installation framework 42, and then the first rotating shaft 20 is fixed on the installation framework 42, so that the installation of the connecting piece is convenient, and the stability of the plate body 41 can be ensured. The mounting frame 42 may be a frame, and the plate body 41 may be embedded in the mounting frame 42. The mounting frame 42 may be provided in a plate shape, the plate body 41 may be provided with a coupling hole, and the plate body 41 may be fixed to the mounting frame 42 by a bolt, or the like.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A fire hydrant door connector for connecting a wall pedestal and a fire hydrant door, comprising:

2. The fire hydrant door coupling according to claim 1, wherein said coupling arm includes a coupling plate and two bosses, both ends of said coupling plate are bent toward the same side, both said bosses are provided at both ends of said coupling plate, and said coupling plate is welded to said bosses.

3. The fire hydrant door coupling according to claim 2, wherein an outer diameter of said first section is larger than an outer diameter of said second section; and/or the outer diameter of the fourth section is larger than that of the third section.

4. The fire hydrant door coupling according to claim 3, wherein said first section is welded to said wall pedestal; and/or, the fourth section is welded with the hydrant door.

5. The fire hydrant door coupling member according to claim 4, wherein said coupling arm further includes a reinforcing plate formed in a shape corresponding to the shape of said coupling plate and arranged in a thickness direction of said coupling plate, said reinforcing plate and said coupling plate being connected to each other, and said reinforcing plate and said coupling plate being connected to said bushing.

6. The fire hydrant door coupling according to claim 5, wherein said reinforcing plate is spaced apart from said connecting plate, said coupling arm further includes a connecting portion extending from one end of said connecting plate to the other end of said connecting plate, and said connecting portion connects said reinforcing plate and said connecting plate.

7. The fire hydrant door coupling according to claim 6, wherein said bushings are a first bushing and a second bushing, respectively, said first bushing being disposed in said second section and said second bushing being disposed in said third section;

the connecting piece further comprises a first bearing and a second bearing, the first bearing and the second bearing are both plane bearings, the first bearing is sleeved on the second section and is respectively abutted against the first section and the first shaft sleeve, and the second bearing is sleeved on the third section and is respectively abutted against the fourth section and the second shaft sleeve.

8. The fire hydrant door connecting member according to claim 7, wherein said first bushing has an accommodating groove formed in an inner peripheral wall thereof, said accommodating groove extending in a circumferential direction of said first bushing in a ring shape, said accommodating groove penetrating an end surface of said first bushing facing said first section, said first bearing being disposed in said accommodating groove, and said first bearing being protruded from said end surface of said first bushing;

a first groove is formed in the end face, facing the first section, of the first shaft sleeve and extends along the circumferential direction of the first shaft sleeve; the first groove is provided with a first side wall and a second side wall which are arranged at intervals along the circumferential direction of the first shaft sleeve, and the first side wall inclines towards the direction far away from the second side wall;

the terminal surface of first section corresponds first recess is equipped with first convex part, first convex part can stretch into in the first recess, first convex part has the edge first side and the second side that the circumference interval of first pivot was arranged, first side is towards keeping away from the direction slope of second side, first side can with first lateral wall butt, just first recess is followed the length that the circumference of first axle sleeve extended is greater than first convex part is followed the length that the circumference of first pivot extended, just first convex part is relative the highly be less than or equal to the degree of depth of first recess of the terminal surface of first section.

9. The fire hydrant door coupling according to claim 8, wherein said second sleeve has a receiving groove formed in an inner peripheral wall thereof, said receiving groove extending in a circumferential direction of said second sleeve and having a ring shape, said receiving groove penetrating an end surface of said second sleeve facing said fourth section, said second bearing being disposed in said receiving groove, and said second bearing being protruded from an end surface of said second sleeve;

a second groove is formed in the end face, facing the fourth section, of the second shaft sleeve and extends in the circumferential direction of the second shaft sleeve, the second groove is provided with a third side wall and a fourth side wall which are arranged at intervals in the circumferential direction of the second shaft sleeve, and the third side wall is inclined towards the direction far away from the fourth side wall;

the end face of the fourth section is provided with second convex parts corresponding to the second groove, the second convex parts can extend into the second groove, the second convex parts are provided with third side faces and fourth side faces which are arranged at intervals along the circumferential direction of the second rotating shaft, the third side faces incline towards the direction far away from the fourth side faces, the third side faces can be abutted against the third side walls, the length of the second groove extending along the circumferential direction of the second shaft sleeve is larger than that of the second convex parts extending along the circumferential direction of the second rotating shaft, and the height of the second convex parts relative to the end face of the fourth section is smaller than or equal to the depth of the second groove.

10. A hydrant door including a door body and a connector for a hydrant door according to any one of claims 1 to 8 in rotatable connection with the door body and also in rotatable connection with a wall pedestal.