CN109653623B

CN109653623B - Door and door shaft assembly thereof

Info

Publication number: CN109653623B
Application number: CN201910073352.2A
Authority: CN
Inventors: 张兆国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2024-04-16
Anticipated expiration: 2039-01-25
Also published as: CN109653623A

Abstract

The invention relates to a door and a door shaft assembly thereof, wherein the door shaft assembly comprises a shaft core and a shaft sleeve, the shaft core comprises a prismatic wall arranged around the rotation axis of the shaft core, the prismatic wall comprises a first prismatic part, the shaft sleeve is linked with the shaft core in the direction around the rotation axis, part of the structure of the first prismatic part is accommodated in the shaft sleeve, and the rest part extends out of the shaft sleeve along the rotation axis. According to the door and the door shaft assembly thereof, the door leaf is mounted on the door frame by adopting the two groups of door shaft assemblies, and when the two shaft cores are matched together along the rotation axis at one side where the first edge is located, the two shaft cores can be mutually meshed together. When the door leaf rotates relative to the door frame, the two shafts rotate relative to each other around the rotation axis, so that the two shafts move up and down along the first edges, when the external force to the door leaf is released, the two shafts can be forced to slide and return to an initial engagement state along the first edges of the two shafts, and then the door leaf is stably and self-closed, and the operation safety is improved.

Description

Door and door shaft assembly thereof

Technical Field

The invention relates to the technical field of safety doors, in particular to a door and a door shaft assembly thereof.

Background

Door body structures such as safety doors and the like are usually arranged at the entrance and the exit of the high-altitude crawling ladder or at certain one-way entrances and exits so as to prevent the high-altitude operators from falling carelessly. However, currently, spring doors are commonly used, and the springs of such spring doors are themselves prone to aging and damage, often resulting in the failure of the entire door to rebound automatically due to the damage of the springs, and the spring door is prone to injury to subsequent operators due to rapid rebound.

Disclosure of Invention

Based on the above, it is necessary to provide a door spindle assembly and a door comprising the same, so as to solve the problems of unsafe and inconvenient operation of the existing door body.

The application provides a door spindle assembly, comprising:

a shaft core having a rotation axis, the shaft core including a rib wall disposed around the rotation axis, the rib wall including a first rib, the first rib being spirally rising around the rotation axis, and an orthographic projection of the first rib on a reference plane being arc-shaped or circular-shaped, the reference plane being a geometric plane perpendicular to the rotation axis;

a shaft sleeve linked with the shaft core in the direction around the rotation axis, wherein part of the first rib structure is accommodated in the shaft sleeve, and the rest part extends out of the shaft sleeve along the rotation axis;

wherein the rib wall is configured such that two of the shafts coaxially disposed along the rotation axis are rotatably fitted, and the first ribs of the two shafts slidably abut.

In one embodiment, the rib wall includes a plurality of the first ribs distributed in a circumferential array about the axis of rotation.

In one embodiment, the rib wall includes a second rib, the second rib spirals around the rotation axis, the spiral direction of the second rib is opposite to the spiral direction of the first rib, and the rib walls of the two shafts coaxially arranged along the rotation axis can be mutually meshed together so that the first ribs of the two shafts are matched and the second ribs of the two shafts are matched;

alternatively, the orthographic projection of the first edge on the reference plane defines a first arc segment, the orthographic projection of the second edge on the reference plane defines a second arc segment, a connecting line of the centers of the first arc segment and the second arc segment defines a reference line, and projection contour lines formed by orthographic projections of the first edge and the second edge in a normal plane of the reference line coincide.

In one embodiment, the connection line of the two ends of the first edge intersects with the rotation axis, and the two ends of the second edge and the two ends of the first edge are respectively connected.

In one embodiment, the central angle of the circular arc formed by the orthographic projection of the first edge on the reference plane is equal to 180 °, the edge wall is in a mirror image structure, and the mirror image surface is a geometric plane determined by two ends of the first edge and the rotation axis.

In one embodiment, the shaft core includes two edge walls, the radii of circles formed by orthographic projections of the two edge walls in the reference plane are different, and mirror image surfaces of the two edge walls are coplanar to form a meshing groove between the two edge walls, and when the two shaft cores are matched together along the rotation axis along the side of the first edge, the edge wall close to the rotation axis can be accommodated in the meshing groove.

In one embodiment, the first edge two ends of one of the edge walls are connected to define a first line segment, the first edge two ends of the other edge wall are connected to define a second line segment, the first line segment and the second line segment intersect, and the included angle is in the range of 70 ° to 110 °.

In one embodiment, the shaft core is provided with a shaft hole, the shaft hole penetrates through the shaft core along the rotation axis, and when the two shaft cores are matched with each other, the limiting piece penetrating through the shaft hole can limit the stroke of the relative movement of the two shaft cores around the rotation axis.

In one embodiment, the shaft core includes a connection portion connected to a side of the rib wall away from the first rib, the connection portion has teeth distributed in a circumferential array around the rotation axis, a socket hole of the shaft sleeve is provided with a limiting tooth matched with the teeth, and the connection portion can be inserted into the socket hole along the rotation axis so that the teeth are engaged with the limiting teeth.

In one embodiment, the hub and the sleeve are integrally formed.

In another aspect, the present application also provides a door comprising a door spindle assembly as described above.

The door and the door shaft assembly thereof comprise a shaft core and a shaft sleeve, the edge wall of the shaft core is provided with a first edge which ascends around a rotating shaft in a spiral way, when the door shaft assembly with the structure is used for installing a door leaf to a door frame, two groups of door shaft assemblies can be used for respectively connecting the door leaf and the door frame, and when the two shaft cores are matched together along the rotating axis at one side where the first edge is located, the two shaft cores can be mutually meshed together. Therefore, when the door leaf rotates relative to the door frame, the two shafts rotate relative to each other around the rotation axis, so that the two shafts move up and down along the first edges, when the external force to the door leaf is released, the two shafts can be forced to slide along the first edges of the two shafts to return to an initial engagement state under the self gravity of the door leaf, and then the door leaf is stably and self-closed, and the operation safety is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a door structure according to an embodiment;

FIG. 2 is an exploded view of a door spindle assembly of a door in one embodiment;

FIG. 3 is a schematic illustration of the core mating of two sets of door spindle assemblies in an embodiment;

FIG. 4 is a door spindle assembly assembled view of the door shown in FIG. 1;

FIG. 5 is a schematic illustration of the mating of the cores of two sets of door spindle assemblies according to one embodiment;

FIG. 6 is a schematic diagram of an embodiment of two sets of door spindle assembly cores;

FIG. 7 is a schematic illustration of the core structure of a door spindle assembly according to one embodiment;

FIG. 8 is a schematic cross-sectional view of the core of the door spindle assembly shown in FIG. 7;

FIG. 9 is a schematic side elevational view of the core of the door spindle assembly illustrated in FIG. 7;

FIG. 10 is a schematic illustration of the core and sleeve structure of a door-shaft assembly in one embodiment;

FIG. 11 is an exploded view of two sets of door spindle assemblies according to another embodiment;

FIG. 12 is a schematic view of a partial assembly of two sets of door spindle assemblies according to one embodiment;

FIG. 13 is a schematic view of the assembled state of the two sets of door spindle assemblies shown in FIG. 12;

FIG. 14 is a schematic view of a door frame structure in one embodiment;

FIG. 15 is a schematic view of another view of a door frame structure in one embodiment;

fig. 16 is a schematic view showing a structure of a door according to an embodiment.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like are used herein for illustrative purposes only and do not represent the only embodiment.

Referring to fig. 1, a door of an embodiment includes a door frame 10, a door leaf 20, and a door shaft assembly 30. Wherein the door leaf 20 is connected to the door frame 10 by a door shaft assembly 30 such that the door leaf 20 can be moved to be opened or closed with respect to the door frame 10.

As shown in fig. 2 and 3, the door frame 10 and the door leaf 20 are rotatably connected by the cooperation of two sets of door shaft assemblies 30. The door spindle assembly 30 includes a spindle core 31 and a spindle sleeve 32. The shaft core 31 has a rotation axis W, and the shaft core 31 and the sleeve 32 are linked in a direction around the rotation axis, in other words, the degree of freedom of rotation between the shaft core 31 and the sleeve 32, which are linked together, is restricted so that the shaft core 31 and the sleeve 32 cannot rotate relative to each other. So that when the sleeve 32 rotates about the rotation axis W, the sleeve 32 rotates about the rotation axis W together with the shaft core 31. Correspondingly, when the shaft core 31 rotates around the rotation axis W, the shaft core 31 can also drive the shaft sleeve 32 to rotate around the rotation axis W together.

The linkage connection between the shaft core 31 and the shaft sleeve 32 is variously described. For example, the shaft core 31 and the shaft sleeve 32 may be connected by a detachable connection manner such as sleeving, plugging, etc., and only the shaft core 31 and the shaft sleeve 32 are required to be matched and cannot rotate relatively. In other embodiments, the shaft core 31 and the shaft sleeve 32 may be fixedly connected by welding. In other embodiments, the shaft core 31 and the shaft sleeve 32 may be integrally formed, which will not be described herein.

The shaft core 31 includes a rib wall 311 provided around the rotation axis W, the rib wall 311 includes a first rib 311a, the first rib 311a is spirally rising around the rotation axis W, and an orthographic projection of the first rib 311a on a reference plane is arc-shaped or circular-shaped, wherein the reference plane is a geometric plane perpendicular to the rotation axis W.

As shown in fig. 3 to 5, the rib 311 is configured such that the two cores 31 coaxially disposed along the rotation axis W are rotatably fitted, and the first ribs 311a of the two cores 31 slidably abut.

Referring to fig. 2, when the door shaft assemblies 30 are disposed to face each other to achieve the rotational engagement between the door leaf 20 and the door frame 10, the cores 31 of the door shaft assemblies 30 are rotatably engaged, and the first edges 311a of the cores 31 are slidably abutted. In general, the door leaf 20 is disposed vertically with respect to the rotation axis of the door frame 10, that is, the two shafts 31 are disposed up and down along the rotation axis W, the upper shaft 31 is connected to the door leaf 20 through the corresponding shaft sleeve 32, the lower shaft 31 is connected to the door frame 10 through the corresponding shaft sleeve 32, and the shaft 31 and the shaft sleeve 32 can rotate together about the rotation axis W, so that when the door leaf 20 rotates with respect to the door frame 10, the two shafts 31 rotate relatively about the rotation axis W, so that they slide along the first edge 311a, that is, the first edges 311a of the two shafts 31 rotate relatively about the rotation axis W. Since the first ribs 311a are spirally disposed around the rotation axis W, when the external force to the door leaf 20 is released, the gravity of the door leaf 20 presses the upper shaft core 31, so that the upper shaft core 31 is spirally lowered along the first ribs 311a of the lower shaft core 31, and finally the two shaft cores 31 slide along the first ribs 311a to return to the original engagement state, thereby realizing self-closing of the door leaf 20. In this way, the door leaf 20 is self-closed without adopting elastic return members such as springs and torsion springs, and the door leaf is not easy to fail and cannot self-close, so that the use safety is improved.

As shown in fig. 3 and 6, when one of the shafts 31 is referred to, the first ribs 311a of the shaft 31 are rotated relatively around the rotation axis W, and thus the shafts 31 are moved toward or away from each other in the direction of the rotation axis W as the shafts 31 are rotated relatively, that is, the shafts 31 positioned above are referred to as being moved up or down along the first ribs 311a of the shafts 31 positioned below, when the first ribs 311a of the shafts 31 are slid against each other, due to the relative rotation of the shafts 31. In this way, it can be understood that when the external force for opening the door 20 is released, the door 20 can be forced to self-close around the rotation axis W of the shaft core 31 by the gravity of the door 20 itself.

The connection between the boss 32 and the door frame 10 and the door leaf 20 may take various forms. For example, as shown in fig. 2 and 4, a connector such as a connecting lug 33 or a hinge plate is connected to the boss 32, so that when the door shaft assembly 30 needs to be connected to the door frame 10, the door frame 10 can be connected to the connector. Accordingly, the door shaft assembly 30 needs to be connected to the door leaf 20, so that the door leaf 20 can be connected through a connecting piece when the door shaft assembly 30 is matched with the door frame 10. In addition, the sleeve 32 may be directly connected to the door frame 10 and the door leaf 20 by welding or fastening, which will not be described herein.

In this embodiment, since the rib 311 of the shaft core 31 has the first rib 311a which rises spirally around the rotation axis W, when the door shaft assembly 30 having such a structure is used to mount the door leaf 20 to the door frame 10, the door leaf 20 and the door frame 10 can be connected to each other by using two sets of the door shaft assemblies 30, and the two shaft cores 31 can be engaged with each other when the two shaft cores 31 are fitted together along the rotation axis W with the first rib 311a located on the side.

As shown in fig. 4, a part of the first rib 311a is accommodated in the sleeve 32, and the rest extends out of the sleeve 32 along the rotation axis W. With this configuration, when the shaft core 31 is installed in the boss 32, a part of the first ridge 311a is housed in the boss 32, and the first ridge 311a rises around the rotation axis W, that is, the first ridge 311a is inclined with respect to the rotation axis W in a sense. Thus, the first rib 311a is partially configured to receive the boss 32, a certain receiving space is formed in the boss 32, and the remaining portion of the first rib 311a extends out of the boss 32. As shown in fig. 5, when the two shafts 31 are engaged with each other, the portion of one first rib 311a extending out of the shaft sleeve 32 can be inserted into the accommodating space formed by the other shaft sleeve 32, so as to radially constrain the first ribs 311a of the two shafts 31, and the first ribs 311a can be always kept against each other without being radially staggered during rotation of the two shafts 31. This kind of structure sets up and makes the door-hinge assembly 30 rotate very stably, and need not to set up other pivot structures and just can realize the normal running fit between the door-hinge assembly 30 on door frame 10 and the door leaf 20, reduces the structure complexity to the installation is used conveniently.

By adaptively adjusting the central angle corresponding to the first ribs 311a, more first ribs 311a can be provided. As in some embodiments, the rib wall 311 includes a plurality of first ribs 311a, and the plurality of first ribs 311a are distributed in a circumferential array about the rotation axis W, that is, the sum of the central angles of the circular arc segments formed by orthographic projections of the first ribs 311a on the reference plane does not exceed 360 °, and when the circular arc segments formed by projections of each first rib 311a are just adjacent, the sum of the circular angles of the circular arc segments is just 360 °. For example, in some embodiments, the central angle corresponding to the first rib 311a, that is, the central angle of the circular arc formed by the orthographic projection of the first rib 311a on the reference plane is 60 °, and the rib wall 311 includes 6 first ribs 311a distributed in a circumferential array around the rotation axis W. When the first ends of the circular arc segments projected by the 6 first edges 311a on the reference plane are connected, the circular arc segments just form a complete circle.

The provision of the plurality of first ribs 311a can provide sufficient structural strength to provide strong torque resistance, maintain stability of relative movement between the two cores 31 during the opening and closing of the door leaf 20, and are not easily worn.

In some embodiments, the core 31 and/or sleeve 32 are over molded of a high strength nylon material to enhance structural strength and durability, resulting in a longer service life of the door shaft assembly 30. In some embodiments, the stainless steel plate is embedded in the sleeve 32, so that the structural strength of the sleeve 32 can be enhanced, and the normal use of the door-shaft assembly 30 is prevented from being influenced by long-term use strain.

Referring to fig. 4 again, the rib wall 311 includes a second rib 311b, the second rib 311b spirals around the rotation axis W, and the spiral direction of the second rib 311b is opposite to the spiral direction of the first rib 311a, and the rib walls 311 of the two cores 31 coaxially disposed along the rotation axis W can be engaged with each other, so that the first ribs 311a of the two cores 31 are engaged with each other, and the second ribs 311b of the two cores 31 are engaged with each other. In this way, the door spindle assembly 30 is enabled to accommodate automatic closing in both directions. Specifically, since the spiral direction of the second rib 311b is opposite to the spiral direction of the first rib 311a, when the door 20 is opened in the first direction and the first rib 311a is used to realize the automatic closing and homing, the door 20 is opened in the direction opposite to the first direction to enable the second ribs 311b of the two shafts 31 to abut against and slide relatively, and at this time, the external force is released, and the door 20 can rotate relatively along the second ribs 311b of each other under the own weight to homing. In some practical applications, the door leaf 20 is in a natural state, that is, the two shafts 31 are in a natural state, that is, the first edges 311a of the two shafts 31 are matched, and the second edges 311b of the two shafts 31 are matched. Once the door 20 rotates relative to the door frame 10, the first edges 311a of the two shafts 31 slide relatively or the second edges 311b of the two shafts 31 slide relatively, so that after the driving force to the door 20 is released, the two shafts 31 can return to the initial state by rotating relatively under the self-gravity of the door 20, the door 20 can be self-closed, the operation is very simple and convenient, and the safety is good.

In some embodiments, the orthographic projection of the first rib 311a on the reference plane defines a first arc segment, the orthographic projection of the second rib 311b on the reference plane defines a second arc segment, the reference line is defined by a line connecting the center of the first arc segment and the center of the second arc segment, and projection contour lines formed by orthographic projections of the first rib 311a and the second rib 311b on the normal plane of the reference line coincide, that is, the first rib 311a and the second rib 311b are mirror-symmetrical with respect to the normal plane of the reference line. The connection line of both ends of the first rib 311a intersects the rotation axis W, and both ends of the second rib 311b and both ends of the first rib 311a are connected, respectively. Therefore, the first edge 311a and the second edge 311b together form a similar closed annular edge, and under the structure, the stress surfaces of the first edge 311a and the second edge 311b are balanced, so that larger torque can be resisted, the damage is not easy to occur, the service life of the door shaft assembly 30 is effectively prolonged, and the use safety is ensured.

Viewed from another aspect, the central angle of the circular arc formed by the orthographic projection of the first rib 311a on the reference plane is equal to 180 °, the rib wall 311 has a mirror image structure, and the mirror image surface is a geometric plane defined by both ends of the first rib 311a and the rotation axis W. Since the first rib 311a is spirally raised around the rotation axis W of the shaft core 31, the rib 311 having a mirror image structure also has a rib opposite to the spiral direction of the first rib 311a, and thus self-closing in both directions can be achieved.

In some embodiments, the rib 311 may not be a mirror image structure, for example, the central angle of the arc formed by the orthographic projection of the first rib 311a on the reference plane may be greater than 180 ° and less than or equal to 360 °, so long as the first rib 311a rotates around the rotation axis W and the first ribs 311a of the two shafts 31 can be matched when the two shafts 31 are matched with each other. In addition, the central angle of the arc formed by the orthographic projection of the first edge 311a on the reference plane may be smaller than 180 °, so long as a reasonable rotation angle is set to meet the requirement of sliding contact of the first edge 311a of the two-axis core 31. For example, in some embodiments, the central angle of the arc formed by the orthographic projection of the first rib 311a on the reference plane is 30 °, 60 °, 90 °, or 130 °, which can achieve the above object.

As shown in fig. 7 to 9, the shaft core 31 includes two rib walls 311, and the radii of circles formed by orthographic projections of the two rib walls 311 in the reference plane are different. Since the rib 311 is a wall-shaped rotating body about the rotation axis W, the difference in the projected circle radii of the two ribs 311 means that the two ribs 311 have a certain fit relationship. In this embodiment, the mirror image surfaces of the two rib walls 311 are coplanar to form a snap groove 311c between the two rib walls 311. Specifically, the two rib walls 311 are offset from each other about the rotation axis W, and when the two cores 31 are fitted together along the rotation axis W on the side of the first rib 311a, the rib wall 311 adjacent to the rotation axis W can be received in the engagement groove 311c. In the two sets of the rib walls 311, the first rib 311a and/or the second rib 311b of the rib wall 311 can be used for realizing the self-closing of the door leaf 20, and in the structural arrangement, the inner rib wall 311 is circumferentially coated by the outer rib wall 311, namely, the outer rib wall 311 has a limiting effect, so that the inner rib wall 311 is prevented from being deflected along the radial direction when being engaged and rotated. Therefore, through the structure, when the two shafts 31 rotate relatively around the rotation axis W, dislocation can not occur between the two shafts 31 along the radial direction, and the stability of the meshing rotation of the two shafts 31 is effectively ensured.

Further, the connection line between the two ends of the first edge 311a of one edge wall 311 defines a first line segment, the connection line between the two ends of the first edge 311a of the other edge wall 311 defines a second line segment, the first line segment and the second line segment intersect, and the included angle is in the range of 70 ° to 110 °. Since the first line segment and the second line segment are defined by opposite ends of the first edge 311a of the two edge walls, respectively, the angle between the first line segment and the second line segment characterizes the inclination degree of the two edge walls relative to the reference plane to a certain extent. In this embodiment, the range of the included angle is restricted to 70 ° to 110 °, so that a more stable radial restriction can be obtained, and radial displacement during rotation of the two cores 31 can be prevented.

As further shown in fig. 6 and 10, the shaft core 31 includes a connecting portion 312 connected to a side of the rib 311 remote from the first rib 311a. The connecting portion 312 has teeth distributed in a circumferential array around the rotation axis W, and a socket 321 of the sleeve 32 is provided with limiting teeth matched with the teeth, and the connecting portion 312 can be inserted into the socket 321 along the rotation axis W so that the teeth are engaged with the limiting teeth. When the initial position of the door 20 needs to be set at a certain rotation angle relative to the door frame 10, the connecting part 312 can be inserted into the trepanning 321 along the rotation axis W after rotating by a suitable angle, and the mode can be suitable for the needs of various occasions. In some embodiments, after the door leaf 20 is closed by the door shaft assembly 30, the relative position of the connecting portion 312 and the sleeve hole 321 can be adjusted and positioned at the relative position by the engagement of the protruding teeth and the limiting teeth, so that the door leaf 20 always has a stable initial state, and then can be closed tightly under the gravity of the door leaf. For another example, in some cases, when the natural state of the door leaf 20 needs to be controlled to be a virtual masking, that is, a certain gap or interval is reserved, the door leaf 20 can be in the virtual masking state when being naturally closed under the action of the door shaft assembly 30 by adjusting the relative matching rotation angle between the connecting portion 312 and the sleeve hole 321. The convex teeth are distributed in a circumferential array around the rotation axis W, so that the shaft core 31 and the shaft sleeve 32 are matched with each other in multiple choices, the requirements of different use and replacement are met, and the structure is simple in form and convenient to install.

As shown in fig. 11 and 12, the shaft core 31 is provided with a shaft hole 31a, and the shaft hole 31a penetrates the shaft core 31 along the rotation axis W. When the two shafts 31 are mutually matched, the limiting piece penetrating through the shaft hole 31a can limit the travel of the relative movement of the two shafts 31 around the rotation axis W, so that the two shafts 31 are prevented from being axially separated from each other due to overlarge movement amplitude along the rotation axis W when relatively rotating, and the self-closing of the door leaf 20 is prevented.

As shown in fig. 13, the limiting member may be a shaft rod 34, the shaft rod 34 is inserted through the shaft holes 31a of the two shaft cores 31 and extends from the corresponding shaft sleeve 32, and the end portion of the shaft rod 34 may be provided with the limiting member 34a in a threaded connection or welded manner, so that when the door leaf 20 rotates relative to the door frame 10, the shaft cores 31 in the two door shaft assemblies 30 move along the rotation axis W in opposite directions, and when the limiting member 34a abuts against the shaft sleeve 32, the two shaft cores 31 can be constrained to rotate relatively by the shaft rod 34, so that the rotation angle of the door leaf 20 relative to the door frame 10 can be limited. In the case of a threaded connection, the stopper 34a may be a nut.

The door frame 10 may be a conventional door frame structure or may be specially designed so that the door frame 10 can flexibly mount the door spindle assembly 30 to be connected with the door leaf 20.

As shown in fig. 14 and 15, in some embodiments, the door frame 10 has a support column 11, the support column 11 is connected with a clamp 50, the clamp 50 includes a clamp seat 51 and a fixing member 52, and the clamp seat 51 is provided with a plurality of waist-shaped holes 511, so that when the clamp seat 51 is fixed on the support column 11 by using the fixing member 52, the fixing member 52 can pass through different positions of the waist-shaped holes 511 to adapt to the installation position of the support column 11, thereby meeting the installation requirement of the door leaf 20, and the door leaf 20 arranged on the door frame 10 can be self-closed to an ideal state. The fixture may be embedded in a wall or other mounting body to stably mount the door frame 10.

The fixing member 52 may be a U-shaped rod member, so that it may be fastened by a fastening member such as a nut 521 after passing through the waist-shaped hole 511 of the holder 51.

In some embodiments, the clamping groove 512 is further formed in the clamping seat 51, so that the mounting stability of the clamping seat 51 is improved by using the clamping groove 512, for example, when the clamping seat 51 is mounted on the columnar structure by using the fixing piece 52, the clamping groove 512 has a clamping limiting effect, so that the mounting stability of the clamping seat 51 is improved. The edge of the clamping groove 512 can be provided with a convex tooth structure 513, so that the limiting effect of the clamping groove 512 is further improved.

As shown in fig. 1, the door leaf 20 may be connected to the door shaft assembly 30 through a support plate 40, and the support plate 40 is provided with a bar-shaped groove 41, where the extending direction of the bar-shaped groove 41 is perpendicular to the rotating direction of the door shaft assembly 30, so that the door leaf 20 may be installed and fixed at different positions of the bar-shaped groove 41, so as to realize expansion and contraction of the door leaf 20, and meet the opening and closing requirements of different spaces.

In some embodiments, the edge of the strip-shaped groove 41 is provided with the tooth-shaped structure 42, so that when the door leaf 20 is fixedly connected to the strip-shaped groove 41 by using the fastener 43 such as a screw or a bolt, the tooth-shaped structure 42 can have a good limiting effect on the fastener 43, and the fastener 43 is prevented from loosening to slide along the strip-shaped groove 41, so that the connection stability between the door leaf 20 and the supporting plate 40 is effectively ensured.

As shown in fig. 1, 14 and 15, a hinge 60 is provided between the support plate 40 and the support column 11, and both ends of the hinge 60 are connected to the support plate 40 and the support column 11, respectively. For example, one end of the hinge 60 is fixed to the support column 11 by a bolt 61, and the other end is inserted into the through hole 44 of the support plate 40. Through this kind of structural design comparatively safe and reliable, can effectively mode backup pad 40 drop from support column 11, improve the security.

In some embodiments, a magnetic attraction blocking piece 70 is disposed on a side of the door leaf 20 away from the door shaft assembly 30, so that the door leaf 20 is attracted and positioned by using the magnetic attraction of the magnetic attraction blocking piece 70, and thus the door leaf 20 is prevented from being closed loosely.

The magnetic blocking piece 70 can be formed by coating rubber with Gao Wen-resistant magnets, so that the rubber on the outer side can be effectively buffered and noise reduced when the magnetic blocking piece is closed. In other embodiments, the magnetic attraction blocking piece 70 may be a structural member with a permanent magnet such as magnetic steel inside and a flexible material outside.

As shown in fig. 16, the door may be provided in a symmetrical structure, that is, the door frame 10, the door leaf 20, and the door shaft assembly 30 are all constructed in a symmetrical structure, so that the door can be flexibly installed when installed. In practical applications, the door 20 may be mounted with one side opened to the left or one side opened to the right, or may be mounted with two doors opened and closed on both sides, which is not limited herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A door spindle assembly, comprising:

the shaft core is provided with a rotation axis, the shaft core comprises a rib wall arranged around the rotation axis, the rib wall comprises a first rib, the first rib ascends in a spiral mode around the rotation axis, the orthographic projection of the first rib on a reference plane is arc-shaped, the reference plane is a geometric plane perpendicular to the rotation axis, the central angle of an arc formed by orthographic projection of the first rib on the reference plane is equal to 180 degrees, the rib wall is in a mirror image structure, and the mirror image surface is a geometric plane determined by two ends of the first rib and the rotation axis;

the two rib walls are configured to enable two shafts coaxially arranged along the rotation axis to be rotatably matched, the first ribs of the two shafts are slidably abutted, the shafts comprise two rib walls, the radius of circles formed by orthographic projections of the two rib walls in the reference plane is different, mirror planes of the two rib walls are coplanar to form a meshing groove, when the two shafts are matched together along the rotation axis on the side where the first ribs are located, the rib walls close to the rotation axis can be accommodated in the meshing groove, the shafts are provided with shaft holes, the shaft holes penetrate through the shafts along the rotation axis, when the two shafts are matched with each other, limiting pieces penetrating through the shaft holes can limit the travel of the two shafts around the rotation axis, the limiting pieces comprise limiting blocks and the limiting pieces, the shaft holes penetrating through the two shafts are matched together on the side where the first ribs are located, and the limiting pieces extend out of the corresponding shaft shafts, and the limiting pieces are connected with the ends of the shafts.

2. The door spindle assembly of claim 1 wherein said rib wall includes a plurality of said first ribs distributed in a circumferential array about said axis of rotation.

3. The door spindle assembly of claim 1, wherein the rib wall includes a second rib that spirals about the rotational axis, the second rib spiraling in a direction opposite to the direction of the first rib, and wherein the rib walls of two cores coaxially disposed along the rotational axis are capable of interlocking with one another such that the first ribs of the two cores coincide and the second ribs of the two cores coincide.

4. A door spindle assembly according to claim 3, wherein the line connecting the ends of the first rib intersects the axis of rotation, and the ends of the second rib and the ends of the first rib are connected respectively.

5. A door spindle assembly according to claim 3, wherein the orthographic projection of the first rib on the reference plane defines a first arc segment, the orthographic projection of the second rib on the reference plane defines a second arc segment, a line of sight defined by a line connecting a center of the first arc segment and a center of the second arc segment, and projection contours formed by orthographic projections of the first rib and the second rib in a normal plane of the reference line coincide.

6. The door spindle assembly of claim 1, wherein the first edge-to-edge connection of one of the edge walls defines a first line segment and the first edge-to-edge connection of the other edge wall defines a second line segment, the first line segment and the second line segment intersecting at an angle in the range of 70 ° to 110 °.

7. The door spindle assembly of claim 1, wherein the stop is a nut that is threadably coupled to the shaft.

8. The door spindle assembly of any one of claims 1-7, wherein the spindle includes a connecting portion having teeth distributed in a circumferential array about the rotational axis, and wherein a socket of the sleeve has stop teeth disposed therein for mating with the teeth, the connecting portion being insertable into the socket along the rotational axis to engage the teeth with the stop teeth.

9. The door spindle assembly of any one of claims 1-7, wherein the spindle core and the bushing are integrally formed.

10. A door comprising a door spindle assembly according to any one of claims 1 to 9.