Self-locking support arm connecting structure and balance door

Abstract

The utility model relates to the technical field of balance door accessories, and provides a self-locking support arm connecting structure and a balance door, a rectangular hole and a screw hole are arranged at the support arm connecting position of an upper transverse frame and a lower transverse frame of a door leaf, the self-locking support arm connecting structure comprises an L-shaped support arm main body, the shorter wing of the L-shaped support arm main body is a main shaft sleeve, and the lower wing of the L-shaped support arm main body is a main shaft sleeve. A rotating shaft accommodating space is arranged at the longer wing end part of the L-shaped support arm main body, and rotating shaft mounting holes are formed in an upper transverse plate and a lower transverse plate of the L-shaped support arm main body; the special-shaped shaft sleeve structure comprises a shaft sleeve main body matched with the rotating shaft accommodating space, a door leaf connecting part integrally formed with the shaft sleeve main body, and a clamping block arranged on the back surface of the shaft sleeve main body; the rotating shaft penetrates through the rotating shaft mounting hole and the shaft sleeve main body. According to the technical scheme, the connecting position is not prone to being damaged, meanwhile, the clamping block can bear the weight of the door leaf, and when the door leaf droops due to the gravity of the door leaf, self-locking is achieved, namely the door leaf and the clamping block are connected more firmly, and the connecting firmness of the supporting arm and the door leaf is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to balance door accessory technical field, specifically, it relates to a self locking support arm connecting structure and balance door. BACKGROUND

[0002] In the related art, the support arm structure in the balance door is generally installed on the door leaf through a screw, which has the following technical defects:

[0003] (1) Force is applied at a single position, and after a period of use, the screw at the connection position of the door leaf and the support arm is prone to loosening and damage.

[0004] (2) The fixing of the support arm and the door leaf is not firm, and after a period of use, the connection is prone to loosening, which cannot be repaired on site, is difficult to repair, and has certain safety hazards. SUMMARY

[0005] The utility model aims at at least solving one of the technical problems existing in the prior art or related art.

[0006] Therefore, the utility model aims at providing a self locking support arm connecting structure and balance door, which increases the connection force point on the door leaf through the design of the door leaf connecting part, the clamping block and the like of the special-shaped shaft sleeve structure, the connection position is not prone to damage, and meanwhile, the clamping block can bear the weight of the door leaf, and when the door leaf is lowered under its own gravity, self locking is realized, that is, the connection is more firm, and the connection of the support arm and the door leaf is more firm.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the utility model provides a self locking support arm connecting structure, the support arm connection position of the upper and lower horizontal frames of the door leaf is provided with a rectangular hole and a screw hole, and the self locking support arm connecting structure comprises: an L-shaped support arm body, the shorter wing of the L-shaped support arm body is a main shaft sleeve, which is detachably sleeved on the balance door main shaft, the longer wing end of the L-shaped support arm body is provided with a rotating shaft containing space, and rotating shaft mounting holes are formed in the upper and lower horizontal plates thereof; a special-shaped shaft sleeve structure, the special-shaped shaft sleeve structure comprises a shaft sleeve body matched with the rotating shaft containing space, a door leaf connecting part integrally formed with the shaft sleeve body, and a clamping block arranged on the back of the shaft sleeve body, the door leaf connecting part is fixedly connected with the screw hole on the door leaf through a fixing piece, and the clamping block is clamped into the rectangular hole on the door leaf; and a rotating shaft, which passes through the rotating shaft mounting hole and the shaft sleeve body, to realize the rotating connection of the L-shaped support arm body and the special-shaped shaft sleeve structure.

[0008] Preferably, the clamping block is in the shape of a human head, one end of which is fixedly installed on the back of the shaft sleeve body, marked as a first end, and the other two ends are in a symmetrical structure, marked as a second end and a third end.

[0009] Preferably, the second end portion is ramped with the connecting surface of the first end portion, and the third end portion is ramped with the connecting surface of the first end portion.

[0010] Preferably, the first end portion is horizontal, the second end portion is connected to the first end portion at an angle of 105-150 degrees, and the third end portion is connected to the first end portion at an angle of 105-150 degrees.

[0011] Preferably, the self-locking support arm connecting structure further comprises a reinforcing steel plate inserted into the upper and lower horizontal frames of the door leaf and located at the support arm connecting position, wherein the reinforcing steel plate is provided with an oblong hole and a screw hole consistent with the door leaf, and the special-shaped shaft sleeve structure is connected to the reinforcing steel plate when connected to the door leaf.

[0012] The technical scheme of the utility model also provides a balanced door comprising the self-locking support arm connecting structure of any one of the above technical schemes.

[0013] The self-locking support arm connecting structure and balanced door provided by the utility model have the following beneficial technical effects:

[0014] (1) The self-locking support arm connecting structure and balanced door provided by the utility model increase the connecting stress points on the door leaf, so that the door leaf connection position is stressed, the clamping block position is also stressed, the stress is more balanced, and the connection position is not easily damaged.

[0015] (2) The self-locking support arm connecting structure and balanced door provided by the utility model can bear the weight of the door leaf, and realize self-locking when the door leaf is lowered by its own gravity, that is, the connection is more secure, and the connection between the support arm and the door leaf is more secure.

[0016] (3) The self-locking support arm connecting structure and balanced door provided by the utility model have a unique design of the structure of the clamping block, so that the position of the clamping block connected to the door leaf is ramped, the connection is locked under the action of the self-weight of the door leaf, the connection security between the door leaf and the support arm is further improved, the connection position is not easily damaged, and the service life is long.

[0017] (4) The self-locking support arm connecting structure and balanced door provided by the utility model insert a reinforcing steel plate into the upper and lower horizontal frames of the door leaf, further improve the security of the connection position between the door leaf and the support arm, and are beneficial to guarantee the service life of the door leaf.

[0018] The additional aspects and advantages of the utility model will be given in the following description part, some of which will become apparent from the following description or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0020] Figure 1 A structure diagram of a self-locking support arm connecting structure according to an embodiment of the present utility model is shown;

[0021] Figure 2 A structure diagram of a self-locking support arm connecting structure according to another embodiment of the present utility model is shown;

[0022] Figure 3 A partial structure diagram of a self-locking support arm connecting structure according to an embodiment of the present utility model is shown;

[0023] Figure 4 A structure diagram of an L-shaped support arm body of a self-locking support arm connecting structure according to an embodiment of the present utility model is shown;

[0024] Figure 5 A structure diagram of a special-shaped shaft sleeve structure of a self-locking support arm connecting structure according to an embodiment of the present utility model is shown;

[0025] Figure 6 A partial structure diagram of a balance door according to an embodiment of the present utility model is shown,

[0026] Among them, Figures 1 to 6 The correspondence between the reference signs and the components in the accompanying drawings is as follows:

[0027] 102 L-shaped support arm body, 1022 main shaft sleeve, 1024 rotating shaft containing space, 1026 rotating shaft mounting hole, 104 special-shaped shaft sleeve structure, 1042 shaft sleeve body, 1044 door leaf connecting part, 1046 clamping block, 1046-1 first end part, 1046-2 second end part, 1046-3 third end part, 106 rotating shaft, 108 reinforcing steel plate, 110 rectangular hole, 112 screw hole, 202 door leaf, 204 balance door main shaft. DETAILED DESCRIPTION

[0028] In order to enable the above-mentioned purpose, features and advantages of the present utility model to be more clearly understood, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model can also be implemented in other ways different from those described herein, therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0030] The utility model discloses a self-locking support arm connecting structure and balanced door Figures 1 to 6 The utility model discloses a self-locking support arm connecting structure and balanced door

[0031] As Figures 1 to 6 The utility model discloses a self-locking support arm connecting structure and balanced door

[0032] Further, as Figure 3 And 5 The utility model discloses a self-locking support arm connecting structure and balanced door

[0033] Further, as Figure 3 And Figure 5 The utility model discloses a self-locking support arm connecting structure and balanced door

[0034] Furthermore, such as Figure 5 As shown, the first end 1046-1 is horizontal, the angle α between the second end 1046-2 and the first end 1046-1 is 105°-150°, and the angle β between the third end 1046-3 and the first end 1046-1 is 105°-150°. This further ensures the locking effect with the door leaf 202.

[0035] Furthermore, such as Figure 2 As shown, the self-locking arm connection structure also includes a reinforcing steel plate 108, which is inserted into the upper and lower horizontal frames of the door leaf 202 and positioned at the arm connection point. The reinforcing steel plate 108 has rectangular holes 110 and screw holes 112 that correspond to those on the door leaf 202. When the irregularly shaped bushing structure 104 is connected to the door leaf 202, it connects to the reinforcing steel plate 108. This further improves the stability of the connection between the door leaf 202 and the arm, helping to ensure the service life of the door leaf 202.

[0036] like Figure 6 As shown, a balanced door according to an embodiment of the present invention includes a self-locking support arm connection structure of any of the above embodiments. Rectangular holes 110 and screw holes 112 are provided at designated positions on the upper and lower horizontal frames of the door leaf 202 for installing a non-shaped bushing structure 104. An L-shaped support arm body 102 is sleeved on the main shaft 204 of the balanced door. The L-shaped support arm body 102 and the non-shaped bushing structure 104 are rotatably connected by a rotating shaft 106.

[0037] The assembly process of the self-locking support arm connection structure proposed in this utility model is as follows:

[0038] The main shaft sleeve 1022 of the L-shaped support arm body 102 is fitted onto the main shaft 204 of the balance door; the main shaft sleeve 1042 of the irregular shaft sleeve structure 104 is placed in the accommodating space 1024 of the rotating shaft 106 of the L-shaped support arm body 102; the rotating shaft 106 passes through the mounting hole 1026 of the rotating shaft 106 and the main shaft sleeve 1042 to achieve a rotatable connection between the L-shaped support arm body 102 and the irregular shaft sleeve structure 104; the snap-fit ​​block 1046 of the irregular shaft sleeve structure 104 is snapped into the rectangular hole 110 of the horizontal frame of the door leaf 202 and the reinforcing steel plate 108, and the door leaf connecting part 1044 corresponds to the screw hole 112 of the horizontal frame of the door leaf 202 and the reinforcing steel plate 108, and is fixedly connected by fasteners. In this way, not only the door leaf connection part 1044 is subjected to force, but also the snap-fit ​​block 1046 is subjected to force. Moreover, the heavier the door leaf 202 is, the better the locking effect with the snap-fit ​​block 1046 is, and the stronger the connection is.

[0039] In the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and other terms should be broadly understood, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0041] In the description of the present application, the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A self-locking support arm connection structure, characterized in that, Rectangular holes and screw holes are provided at the connection positions of the upper and lower horizontal frames of the door leaf. The self-locking support arm connection structure includes: an L-shaped support arm body, the shorter wing of the L-shaped support arm body being a main shaft sleeve, which is detachably fitted onto the main shaft of the balanced door; a pivot receiving space is provided at the end of the longer wing of the L-shaped support arm body, and pivot mounting holes are provided on both its upper and lower horizontal plates; an irregularly shaped shaft sleeve structure, which includes a shaft sleeve body matching the pivot receiving space, a door leaf connecting part integrally formed with the shaft sleeve body, and a snap-fit ​​block provided on the back of the shaft sleeve body; the door leaf connecting part is fixedly connected to the screw holes on the door leaf by fasteners, and the snap-fit ​​block is engaged into the rectangular hole on the door leaf; and a pivot, which passes through the pivot mounting hole and the shaft sleeve body to realize the rotational connection between the L-shaped support arm body and the irregularly shaped shaft sleeve structure.

2. The self-locking support arm connection structure according to claim 1, characterized in that, The snap-fit ​​block is shaped like a herringbone, with one end fixedly installed on the back of the bushing body, referred to as the first end, and the other two ends having an upper and lower symmetrical structure, referred to as the second end and the third end, respectively.

3. The self-locking support arm connection structure according to claim 2, characterized in that, The connection surface between the second end and the first end is sloped, and the connection surface between the third end and the first end is sloped.

4. The self-locking support arm connection structure according to claim 3, characterized in that, The first end is horizontal, the angle between the second end and the first end is 105°-150°, and the angle between the third end and the first end is 105°-150°.

5. The self-locking support arm connection structure according to any one of claims 1 to 4, characterized in that, Also includes: A reinforcing steel plate is inserted into the upper and lower horizontal frames of the door leaf and is located at the support arm connection position. The reinforcing steel plate is provided with rectangular holes and screw holes that are consistent with those on the door leaf. When the irregular bushing structure is connected to the door leaf, it is connected to the reinforcing steel plate.

6. A balancing gate, characterized in that, The self-locking arm connection structure includes any one of claims 1 to 5.

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