Door frame and door body connecting piece convenient to install

Abstract

The utility model relates to a door frame and door body connecting piece convenient to install, which comprises a door body, door frames are respectively arranged on the left side and the right side of the door body, a rotating shaft is fixedly connected in the door frame on the right side, a connecting piece is rotatably connected onto the rotating shaft, and the connecting piece is fixedly connected with the door body through a fixing pin. A fixing hole is formed in the door body corresponding to the sleeve, an inner rod is fixedly connected into the sleeve, the left side of the inner rod protrudes out of the sleeve and is embedded into the door body, a limiting nut is connected to the left side of the inner rod in a threaded mode, a limiting ring is arranged between the limiting nut and the sleeve and arranged on the outer side of the inner rod in a sleeving mode, and the length of the inner diameter of the limiting ring is larger than the diameter of the inner rod. When the limiting ring is only under the action of gravity, the central axis height of the limiting ring is smaller than the central axis height of the fixing hole, at the moment, the outer diameter length of the limiting ring is restrained to be equal to the diameter of the fixing hole, the lower end height of the limiting ring can be smaller than the lower end height of the fixing hole under the normal condition, and therefore position restraining on the fixing pin is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of door body and door frame connecting pieces, in particular to a door frame door body connecting piece which is easy to install. Background Art

[0002] Complete commercial doors on the market now generally include door frames and door panels, wherein the door frames are connected to the solid wall to support and fix the door panels, and the door panels generally include a middle frame and decorative panels distributed on both sides of the middle frame.

[0003] In order to realize the opening and closing process of the door panel in the prior art device, hinges or related connectors are generally selected according to different bearing capacity requirements to realize the connection between the door panel and the door frame. Among them, the connector is generally a U-shaped structure, one vertical section of the connector is embedded in the door frame and rotatably connected to the rotating shaft, and the other vertical section of the connector is fixedly connected to the door panel.

[0004] In the prior art device, the connecting parts are generally fixedly connected to the door panel by bolts. The presence of the bolts requires corresponding internal threaded holes to be opened on the middle frame of the door panel to complete the fit. At the same time, the threaded connection method requires the bolts to be rotated a large number of times to form a stable fit, which makes the processing and fitting time of the prior art device longer.

[0005] Therefore, we believe that there is a need for a door panel and door frame connector that can shorten the processing and coordination time and facilitate the installation process of the door panel and the door frame. Summary of the invention

[0006] In view of the shortcomings of the prior art, the utility model proposes a door frame and door body connector that is easy to install, which has the advantages of reducing processing and matching time and lowering production costs. It solves the shortcomings of the prior art device that requires separate internal threaded holes to be opened, the threaded connection installation time is long, and the processing cost is high.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A door frame-door body connecting piece that is easy to install, comprising a door body, wherein a door frame is arranged on the left and right sides of the door body respectively, wherein a rotating shaft is fixedly connected to the inside of the door frame on the right side, and a plurality of connecting pieces with a U-shaped cross section are sleeved on the outside of the rotating shaft from top to bottom, wherein one vertical section of each connecting piece is rotatably connected to the rotating shaft, and the other vertical section of each connecting piece is detachably connected to the door body, a rotating groove is opened through the connecting piece on the door frame on the right side, and a trapezoidal structure with a longitudinal section is opened through the left and right sides on the vertical section of each connecting piece close to the door body The mounting hole has a fixing pin inserted in the mounting hole, each fixing pin includes a sleeve matched with the mounting hole, an inner rod is fixedly connected to the inside of the sleeve, the left side of the inner rod protrudes from the sleeve and the part of the inner rod protruding from the left side of the sleeve is screwed with a limiting nut, a fixing hole is opened on the right side of the door body for the sleeve to pass through, the sleeve is inserted in the fixing hole, a limiting ring is sleeved on the outside of each inner rod, the limiting ring is located between the sleeve and the limiting nut, the limiting ring is located in the inner cavity of the door body, and the inner diameter of the limiting ring is greater than the diameter of the inner rod, and the maximum outer diameter of the limiting ring is equal to the diameter of the fixing hole.

[0009] Preferably, a reset ring with an overall conical structure is sleeved on the outer side of each inner rod, the reset ring is embedded in the sleeve and is slidably connected to the sleeve, and the outer diameter length of the reset ring close to the limiting ring is smaller than the outer diameter length of the reset ring away from the limiting ring, the maximum outer diameter length of the reset ring is equal to the inner diameter length of the limiting ring, and the projection of the reset ring on the horizontal plane partially overlaps with the projection of the limiting ring on the horizontal plane.

[0010] Preferably, a push rod is fixedly connected to the end face of the reset ring away from the limiting ring, a sleeve protrudes from the right side of the push rod, and a pressure plate is fixedly connected to the right end face of the push rod.

[0011] Preferably, the end face of the reset ring away from the limiting ring is fixedly connected with a tension spring, the tension spring is sleeved on the outside of the inner rod, and the right end face of the tension spring is fixedly connected to the inner rod. When the tension spring is not affected by external force, the projection of the reset ring on the horizontal plane partially overlaps with the projection of the limiting ring on the horizontal plane.

[0012] Preferably, each of the reset rings is divided into a contact section and a reset section from left to right, wherein the contact section is a cylindrical structure and the reset section is projected as a trapezoidal structure on the vertical plane. When the pull rope spring is not affected by external force, the projection of the contact section of the reset ring on the horizontal plane coincides with the projection of the limit ring on the horizontal plane.

[0013] Preferably, the limiting ring is a conical structure as a whole, and the outer diameter length of the limiting ring on the side close to the limiting nut is smaller than the outer diameter length of the limiting ring on the side away from the limiting nut.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model uses gravity to make the limit ring located in the inner cavity of the door body fall automatically. At this time, the height of the center axis of the limit ring is less than the height of the center axis of the fixing hole, that is, the height of the lower end of the limit ring is less than the height of the lower end of the fixing hole. In combination with the limit nut and the structure of the mounting hole itself, the fixing effect of the fixing pin on the connecting part and the door body can be achieved. Compared with the traditional threaded matching form, the present device not only does not require additional tapping of the door body, but also does not require multiple rotations to achieve relative fixation between the fixing pin and the door body, which can effectively reduce processing costs and processing time. At the same time, the present device does not rely on traditional threads to achieve the limiting of the fixing pin, and has lower requirements on the structural strength of the door body, which can effectively reduce the overall production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cooperation between the connecting piece and the fixing pin of the utility model;

[0018] Figure 3 This is a schematic diagram of the position relationship between the connecting piece and the mounting hole of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the casing of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the inner rod and the limit nut of the utility model;

[0021] Figure 6 This is a schematic diagram of the position relationship between the extension spring and the push rod of the utility model.

[0022] In the figure: 1. door frame; 2. door body; 3. rotating shaft; 4. rotating groove; 5. connecting piece; 6. fixing pin; 601. locking nut; 602. limiting ring; 603. sleeve; 604. inner rod; 605. push rod; 606. pressure plate; 607. tension spring; 608. reset ring; 6081. contact section; 6082. reset section; 7. mounting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Please refer to Figure 1-6 A door frame and door body connector that is easy to install includes two door body parts as the main body, and the two door body parts can be defined as steel-wood door material or solid wood door material.

[0026] A door frame 1 is respectively provided on the left and right sides of the door body 2, and the door frame 1 is used to connect the door body 2 and the solid wall to achieve the opening and closing effect of the door body 2. Therefore, a rotating shaft 3 with an upper and lower axial direction is fixedly connected in the door frame 1 on the right side, and a connecting member 5 is sleeved on the rotating shaft 3. Therefore, the connecting member 5 is rotatably connected to the rotating shaft 3. At this time, it is only necessary to relatively fix the connecting member 5 and the door body 2 to achieve the purpose of using the connecting member 5 to make the door body 2 open and close.

[0027] Specifically, there are multiple connecting members 5, and the multiple connecting members 5 are arranged in parallel from top to bottom.

[0028] Furthermore, the cross-section of a single connecting member 5 is a U-shaped structure, and the U-shaped opening of the connecting member 5 faces forward. This, together with the rotating groove 4 provided on the door frame 1 for the connecting member 5, can avoid travel conflicts between the door body 2, the connecting member 5 and the door frame 1 during the backward rotation of the door body 2.

[0029] Specifically, each connecting member 5 is provided with a mounting hole 7 with a trapezoidal longitudinal section, which constrains the diameter of the mounting hole 7 close to the door body 2 to be smaller than the diameter of the mounting hole 7 away from the door body 2. The structural characteristics of the mounting hole 7 itself can be utilized to prevent the fixing pin 6 inserted in the mounting hole 7 from moving toward the door body 2.

[0030] Specifically, a fixing hole is opened on the right side of the door body 2 for the positioning pin, and the matching process between the connecting piece 5 and the door body 2 is achieved by inserting the fixing pin 6 into the fixing hole. At this time, in combination with the structural characteristics of the mounting hole 7 itself, it is only necessary to constrain the fixing pin 6 from moving toward the door frame 1, so as to ensure the stability of the connection between the connecting piece 5 and the door body 2.

[0031] Therefore, the device constrains the fixing pin 6 to include a sleeve 603 , the side of the sleeve 603 away from the door body 2 is adapted to the mounting hole 7 , the sleeve 603 is inserted into the mounting hole 7 , and the diameter of the fixing hole is adapted to the outer diameter of the sleeve 603 .

[0032] An inner rod 604 is inserted into the inner side of the sleeve 603. As shown in the figure, the inner rod 604 is detachably connected to the sleeve 603 by bolts. This allows the inner rod 604 and the sleeve 603 to be considered as one piece under normal circumstances. This ensures the convenience of assembly and processing and saves costs.

[0033] It should be noted that the currently commonly used door body 2 structure generally includes panels located on the front and rear sides, and a middle frame is arranged between the two panels. The interior of the middle frame is a cavity structure to reduce the weight of the door body 2, and the interior of the middle frame can be filled with corresponding functional materials to meet the sound insulation and fire prevention effects of the door body 2.

[0034] Therefore, the device can constrain the left side of the inner rod 604 to protrude outside the sleeve 603, that is, the left side of the inner rod 604 is embedded in the inner cavity of the middle frame.

[0035] At this time, by threading a locking nut 601 on the left side of the inner rod 604, the sleeve 603 and the locking nut 601 can be used to constrain the position of the limit ring 602 sleeved on the outside of the inner rod 604, ensuring that the limit ring 602 can also be located in the inner cavity of the door body 2, and ensuring that the right end face of the limit ring 602 can fit with the inner end face of the middle frame of the door body 2, so that the limit ring 602 is used in conjunction with the fixing hole to constrain the fixing pin 6 from moving toward the door frame 1.

[0036] Specifically, the inner diameter length of the limit ring 602 constrained by the present device is greater than the diameter of the inner rod 604. This means that under normal circumstances, when the limit ring 602 is only affected by gravity, the height of the center axis of the limit ring 602 is less than the corresponding height of the center axis of the inner rod 604. At this time, the maximum outer diameter of the limit ring 602 is equal to the diameter of the fixing hole. Under normal circumstances, the height of the lower end of the limit ring 602 is less than the height of the lower end of the fixing hole, thereby preventing the limit ring 602 from moving toward the door frame 1 through the fixing hole, thereby achieving complete fixation of the position of the fixing pin 6.

[0037] Furthermore, the constraint limit ring 602 of the device is a conical structure as a whole, and the outer diameter length of the limit ring 602 close to the limit nut is smaller than the outer diameter length of the limit ring 602 away from the limit nut. This allows the operator to insert the fixing pin 6 into the fixing hole, and the inclined end surface on the outside of the limit ring 602 can automatically drive the limit ring 602 to move upward, so that the central axis of the limit ring 602 can temporarily coincide with the central axis of the inner rod 604. This can effectively reduce assembly time and reduce costs.

[0038] Furthermore, in order to facilitate subsequent disassembly, maintenance and replacement, the device is also provided with a reset ring 608 with an overall conical structure on the outer side of the inner rod 604, which constrains the outer diameter length of the reset ring 608 close to the limit ring 602 to be smaller than the outer diameter length of the reset ring 608 away from the limit ring 602, and under normal circumstances, the horizontal plane projection of the reset ring 608 partially overlaps with the horizontal plane projection of the limit ring 602, that is, under normal circumstances, the inner wall of the limit ring 602 abuts against the outer wall of the reset ring 608. This can utilize the structural characteristics of the reset ring 608 itself, and change the form of the abutment position of the reset ring 608 and the limit ring 602 by sliding the reset ring 608, thereby changing the distance between the central axis of the limit ring 602 and the central axis of the inner rod 604.

[0039] It should be noted that the maximum outer diameter length of the reset ring 608 is equal to the inner diameter length of the limit ring 602. This utilizes the characteristic that the central axis of the reset ring 608 coincides with the central axis of the inner rod 604, so that the device can achieve the coincidence of the central axis of the limit ring 602 and the inner rod 604 by sliding the reset ring 608.

[0040] Specifically, a tension spring 607 is fixedly connected to the end face of the reset ring 608 away from the limiting ring 602. The tension spring 607 is sleeved outside the inner rod 604 and the other end of the tension spring 607 is fixedly connected to the inner rod 604. In this way, the tension spring 607 can be used to constrain the position of the reset ring 608 under normal circumstances, and does not hinder the reset ring 608 from moving toward the limiting ring 602.

[0041] Specifically, a push rod 605 is fixedly connected to the end face of the reset ring 608 away from the limiting ring 602 , and the right end of the push rod 605 protrudes from the sleeve 603 so that the operator can push the push rod 605 to drive the reset ring 608 to move toward the limiting ring 602 .

[0042] At the same time, as shown in the figure, in order to avoid unbalanced force on one side of the reset ring 608, the device has two push rods 605 symmetrically arranged on both sides of each reset ring 608, and a pressure plate 606 is fixedly connected to the right end faces of the two push rods 605. The pressure plate 606 is used to make the single reset ring 608 bear force on both sides at the same time.

[0043] It should be noted that in order to ensure that the limiting ring 602 between the limiting nut and the sleeve 603 can fall freely under gravity, the distance between the limiting nut and the sleeve 603 must be greater than the thickness of the limiting ring 602 .

[0044] Therefore, the limiting ring 602 can make a slight left and right movement between the limiting nut and the sleeve 603. Therefore, in order to ensure that the horizontal plane projection of the reset ring 608 always overlaps with the horizontal plane projection of the limiting ring 602, the device constrains the reset ring 608 to be divided into a contact section 6081 and a reset section 6082 from left to right, ensuring that the horizontal plane projection of the contact section 6081 overlaps with the horizontal plane projection of the limiting ring 602.

[0045] In actual use, the utility model:

[0046] First, the operator opens a fixing hole of a suitable diameter on the door body 2, ensuring that the fixing hole matches the outer diameter of the sleeve 603 and that the fixing hole passes through the inner plate;

[0047] Then, select a suitable number of connecting members 5, and sequentially sleeve the connecting members 5 on the outside of the rotating shaft 3 from top to bottom;

[0048] Afterwards, the fixing pin 6 is inserted into the mounting hole 7. At this time, the outer end surface of the limiting ring 602 abuts against the right end surface of the door body 2. Under the influence of the thrust, the central axis of the limiting ring 602 coincides with the central axis of the inner rod 604, and the limiting ring 602 is immersed in the fixing hole.

[0049] After that, the fixing pin 6 is continuously pushed until the fixing pin 6 abuts against the connecting member 5. At this time, after the limiting ring 602 is immersed in the inner cavity of the door body 2, the limiting ring 602 is affected by gravity, and the height of the lower end of the limiting ring 602 is less than the height of the corresponding fixing hole;

[0050] Finally, when the door body 2 and the door frame 1 need to be separated, the pressure plate 606 is pushed and the connecting member 5 is pulled to the right. When the connecting member 5 can be pulled, the pressure on the pressure plate 606 is stopped. At this time, the limiting ring 602 is immersed in the fixing hole.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door frame and door body connector that is easy to install. Features: The door body (2) comprises a door frame (1) disposed on the left and right sides of the door body (2), wherein a rotating shaft (3) is fixedly connected inside the door frame (1) located on the right side, and a plurality of connecting pieces (5) having a U-shaped cross section are sleeved on the outer side of the rotating shaft (3) from top to bottom; One vertical section of each of the connecting members (5) is rotatably connected to the rotating shaft (3), and the other vertical section of each of the connecting members (5) is detachably connected to the door body (2), and a rotating groove (4) is provided on the door frame (1) on the right side and penetrates through the connecting member (5); Each of the connecting members (5) has a vertical section on one side close to the door body (2) with a mounting hole (7) having a trapezoidal longitudinal section, and a fixing pin (6) is inserted in the mounting hole (7); Each of the fixing pins (6) comprises a sleeve (603) adapted to the mounting hole (7), an inner rod (604) being fixedly connected inside the sleeve (603), the inner rod (604) protruding out of the sleeve (603) on the left side, and the portion of the inner rod (604) protruding out of the sleeve (603) on the left side is threadedly connected to a limiting nut; The right side of the door body (2) is provided with a fixing hole for the sleeve (603), and the sleeve (603) is inserted into the fixing hole; A limiting ring (602) is sleeved on the outside of each inner rod (604), the limiting ring (602) is located between the sleeve (603) and the limiting nut, the limiting ring (602) is located in the inner cavity of the door body (2), and the inner diameter of the limiting ring (602) is greater than the diameter of the inner rod (604), and the maximum outer diameter of the limiting ring (602) is equal to the diameter of the fixing hole.

2. A door frame and door body connector that is easy to install according to claim 1, Features: A reset ring (608) having an overall conical structure is sleeved on the outer side of each inner rod (604); the reset ring (608) is embedded in the sleeve (603) and is slidably connected to the sleeve (603); and the outer diameter length of the reset ring (608) on the side close to the limiting ring (602) is smaller than the outer diameter length of the reset ring (608) on the side away from the limiting ring (602); The maximum outer diameter length of the reset ring (608) is equal to the inner diameter length of the limit ring (602), and the projection of the reset ring (608) on the horizontal plane partially overlaps with the projection of the limit ring (602) on the horizontal plane.

3. A door frame and door body connector that is easy to install according to claim 2, Features: The end face of the reset ring (608) away from the limiting ring (602) is fixedly connected to a push rod (605), the right side of the push rod (605) protrudes from the sleeve (603), and the right side end face of the push rod (605) is fixedly connected to a pressure plate (606).

4. A door frame and door body connector that is easy to install according to claim 3, Features: The end face of the reset ring (608) away from the limiting ring (602) is fixedly connected with a tension spring (607), the tension spring (607) is sleeved on the outside of the inner rod (604), and the right end face of the tension spring (607) is fixedly connected to the inner rod (604); When the tension spring (607) is not affected by external force, the projection of the reset ring (608) on the horizontal plane partially overlaps with the projection of the limit ring (602) on the horizontal plane.

5. A door frame and door body connector that is easy to install according to claim 2, Features: Each reset ring (608) is divided from left to right into a contact section (6081) and a reset section (6082), wherein the contact section (6081) is a cylindrical structure, and the reset section (6082) is projected as a trapezoidal structure on a vertical plane. When the pull rope spring is not affected by external force, the projection of the contact section (6081) of the reset ring (608) on a horizontal plane coincides with the projection of the limit ring (602) on a horizontal plane.

6. A door frame and door body connector that is easy to install according to claim 1, Features: The limiting ring (602) is of a conical structure as a whole, and the outer diameter length of the limiting ring (602) on the side close to the limiting nut is smaller than the outer diameter length of the limiting ring (602) on the side away from the limiting nut.

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