Three-way transmission mechanism of door

Abstract

A three-way transmission mechanism of a door is characterized in that the three-way transmission mechanism of the door comprises an external round handle 1, a rotating shaft 2, a cylindrical box 3 with three-way height staggered sliding grooves, a gear 4, a rack 5 and the like.

Description

Technical Field

[0001] The utility model relates to a three-way transmission mechanism for a door, which is mainly used for round vault doors, and can also be used for transmission of large round safes, anti-theft doors, gun cabinets, file cabinets, confidentiality cabinets, high-end furniture, etc. The three-way transmission mechanism of the door has small size, simple structure and convenient use. Background Art

[0002] At present, the production of vault doors or other doors with unique shapes, such as round, the door lock is no longer up and down, left and right, but radiates from the center of the round door to the periphery. The existing transmission volume is large, the structure is complex, the processing technology is cumbersome, and the cost is high. The utility model drives the gear on the rotating shaft through the round handle, and then the gear drives the rack in the three-way height staggered slide groove to pull the door bolt mechanism. At the same time, the mechanism can be set with round handles inside and outside to realize the inside and outside opening of the door. The three-way transmission mechanism of the door is mainly driven by gear racks, which is flexible to open and easy to operate. Utility Model Content

[0003] The purpose of the utility model is to provide a three-way transmission mechanism for a door, which drives the gear on the rotating shaft through a round handle, and then the gear drives the rack in the three-way height-staggered sliding groove to pull the door bolt mechanism. At the same time, the mechanism can be provided with round handles inside and outside to realize inside and outside door opening. The three-way transmission mechanism of the door is mainly driven by gear racks, which is flexible to open and easy to operate.

[0004] The technical scheme of the utility model is as follows: the three-way transmission mechanism of the door comprises an external round handle, a rotating shaft and a cylindrical box with three-way highly staggered sliding grooves, a gear and a rack; a gear is arranged at the inner end of the rotating shaft of the round handle, and the gear is fixed on the rotating shaft by two screws; teeth are arranged in the middle section of the gear, and outer steps and inner steps slightly smaller than the teeth are arranged at the inner and outer ends; a circular hole 1 is arranged at the bottom of the cylindrical box, a circular hole 2 which is slightly larger is arranged at the upper part, a horizontal sliding groove is arranged at the upper part of the cylindrical box, and two other sliding grooves, i.e., a left sliding groove and a right sliding groove, are evenly distributed around the center of the cylindrical box, the three sliding grooves are deepened at one time, and three countersunk holes are arranged under the three sliding grooves for fixing the transmission mechanism; the outer step at the outer end of the gear passes through the circular hole 1 at the bottom of the cylindrical box, and three crossed racks are arranged in the horizontal sliding groove, the left sliding groove and the right sliding groove respectively, the rack is meshed with the gear, and a pressure cover is arranged on the inner end surface of the cylindrical box and fixed by screws; the round handle is turned, and the rotating shaft drives the gear to rotate, so that the rack can be pulled to extend and retract, thereby driving the extension and retraction of the bolt mechanism of the door.

[0005] A round handle and a rotating shaft are arranged inside the three-way transmission mechanism of the door. The connection mode between the round handle and the gear on the internal rotating shaft is the same as the connection mode between the round handle and the rotating shaft outside.

[0006] The advantages of the utility model are: the three-way transmission mechanism of the door of the utility model drives the gear on the rotating shaft through the round handle, and then the gear drives the rack in the three-way height-staggered slide groove to pull the door bolt mechanism, and at the same time, the mechanism can be provided with round handles inside and outside to realize the inside and outside opening of the door. The three-way transmission mechanism of the door is mainly driven by the gear rack, which is flexible to open and easy to operate. The product has a simple design, reduces costs, and is easy to install and use. The utility model is simple and convenient to process, and is more secure and novel. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a three-way transmission mechanism assembly perspective view of a door according to the utility model;

[0008] Figure 2 This is a three-dimensional diagram of the assembly of a round handle and gears of a three-way transmission mechanism of a door of the utility model;

[0009] Figure 3 It is a three-dimensional diagram of a cylindrical box of a three-way transmission mechanism of a door of the utility model;

[0010] Figure 4 It is a three-dimensional diagram of the internal opening of a three-way transmission mechanism of a door of the utility model. DETAILED DESCRIPTION

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] Reference Figure 1 , Figure 2 , Figure 3 The three-way transmission mechanism of the door includes an external round handle 1, a rotating shaft 2, a cylindrical box 3 with three-way height-staggered sliding grooves, a gear 4 and a rack 5; a gear 4 is provided at the inner end of the rotating shaft 2 of the round handle 1, and the gear 4 is fixed to the rotating shaft 2 by two screws; a tooth 6 is provided in the middle section of the gear 4, and an outer step 7 and an inner step 8 slightly smaller than the tooth 6 are provided at the inner and outer ends; a round hole 1 9 is provided at the bottom of the cylindrical box 3, and a slightly larger round hole 2 10 is provided on the upper part; a horizontal sliding groove 11 is provided on the upper part of the cylindrical box 3, and another round hole 10 is evenly distributed around the center of the cylindrical box 3. The two outer slide grooves, namely the left slide groove 12 and the right slide groove 13, are deepened at one time, and three countersunk holes 14 are arranged under the three slide grooves for fixing the transmission mechanism; the outer step 7 at the outer end of the gear 4 passes through the circular hole 9 at the bottom of the cylindrical box 3, and three crossed racks 5 are respectively arranged in the horizontal slide groove 11, the left slide groove 12 and the right slide groove 13, and the racks 5 are meshed with the gears 4. The inner end surface of the cylindrical box 3 is provided with a pressure cover 15, which is fixed by screws; by turning the round handle 1, the rotating shaft 2 drives the gear 4 to rotate, so that the rack 5 can be pulled to extend and retract, driving the extension and retraction of the door bolt mechanism.

[0013] Reference Figure 4A round handle 1-1 and a rotating shaft 2-1 are provided inside the three-way transmission mechanism of the door. The connection mode between the round handle 1-1 and the gear 4 on the internal rotating shaft 2-1 is the same as the connection mode between the external round handle 1 and the rotating shaft 2.

[0014] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-way transmission mechanism for a door, characterized in that: The three-way transmission mechanism of the door comprises an external round handle (1), a rotating shaft (2), a cylindrical box (3) with three-way height-staggered sliding grooves, a gear (4) and a rack (5); a gear (4) is provided at the inner end of the rotating shaft (2) of the round handle (1), and the gear (4) is fixed to the rotating shaft (2) by two screws; a gear (6) is provided in the middle section of the gear (4), and an outer step (7) and an inner step (8) slightly smaller than the gear (6) are provided at the inner and outer ends; a round hole (9) is provided at the bottom of the cylindrical box (3), and a round hole (10) which is slightly larger is provided at the upper part; a horizontal sliding groove (11) is provided at the upper part of the cylindrical box (3), and there are respectively and evenly distributed gear teeth (11) around the center of the cylindrical box (3). The other two slide grooves, i.e. the left slide groove (12) and the right slide groove (13), are deepened at once, and three countersunk holes (14) are arranged below the three slide grooves for fixing the transmission mechanism; the outer step (7) at the outer end of the gear (4) passes through the round hole (9) at the bottom of the cylindrical box (3); three crossed racks (5) are arranged in the horizontal slide groove (11), the left slide groove (12) and the right slide groove (13), respectively, and the racks (5) are meshed with the gears (4); a pressure cover (15) is arranged on the inner end surface of the cylindrical box (3) and fixed by screws; by turning the round handle (1), the rotating shaft (2) drives the gear (4) to rotate, thereby pulling the rack (5) to extend and retract, driving the door bolt mechanism of the door to extend and retract.

2. The three-way transmission mechanism for a door according to claim 1, characterized in that: A round handle (1-1) and a rotating shaft (2-1) are provided inside the three-way transmission mechanism of the door. The connection mode between the round handle (1-1) and the gear (4) on the internal rotating shaft (2-1) is the same as the connection mode between the external round handle (1) and the rotating shaft (2).

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