Push-pull type handle mechanism and door lock

Abstract

The utility model relates to a push-pull type handle mechanism and a door lock, the push-pull type handle mechanism comprises two oppositely arranged handle bodies, and the handle bodies are vertically arranged; the device further comprises a mounting seat, a follow-up shifting fork and a square steel transmission assembly, the mounting seat comprises a mounting shell and a mounting base, and the inner wall of the mounting shell is connected with a rotating shaft; the follow-up shifting fork comprises a mounting block and a shifting fork set, the mounting block is connected to the lower end of the handle body, the shifting fork set penetrates through the mounting shell and comprises a long shifting fork and a short shifting fork which are connected to the left end and the right end of the other side of the mounting block, and the long shifting fork and the short shifting fork are provided with mounting holes in clearance fit with the rotating shaft. The height of the axis of the mounting hole is different from that of the axis of the mounting block in the horizontal direction; and the square steel transmission assembly is matched with the long shifting fork. The handle is particularly suitable for being used under special conditions or extreme environments, the door can be opened by lightly pressing the handle body, then the handle can be conveniently used under the extreme or special conditions, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware locks, and particularly relates to a push-pull handle mechanism and a door lock. Background Art

[0002] At present, conventional rotary door locks and door handles are generally installed on fire doors at home and abroad. In case of a fire, the door handle will become hot, making it difficult for rescue personnel or escapees to open the door by turning the handle, and burns and other situations may occur, bringing certain risks to the rescue work. At the same time, the rotary door lock or door handle is also inconvenient to use in special situations or for special groups. For example, when people carry heavy objects in both hands or it is inconvenient to use both hands to open the door, it will be difficult to open the door.

[0003] At present, push-pull door locks have also been introduced on the market, but the existing push-pull door locks usually need to be pushed at a large angle to open the door, which will cause difficulties in unlocking and poor user experience in the above special situations. Content of the Utility Model

[0004] The purpose of the utility model is to provide a push-pull handle mechanism and a door lock to at least partially solve the technical problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A push-pull handle mechanism includes two oppositely arranged handle bodies, and the handle bodies are arranged vertically; it also includes a mounting base, a follower fork and a square steel transmission component. The mounting base includes a mounting shell and a mounting base, and a rotating shaft is connected to the inner wall of the mounting shell; the follower fork includes a mounting block and a fork group. The mounting block is connected to the lower end of the handle body. The fork group passes through the mounting shell and includes a long fork and a short fork connected to the left and right ends of the other side of the mounting block. The long fork and the short fork are provided with mounting holes that are clearance-fitted with the rotating shaft, and the axis of the mounting hole is at a different height from the axis of the mounting block in the horizontal direction; the square steel transmission component cooperates with the long fork.

[0006] In one embodiment, the vertical distance between the axis of the mounting hole and the axis of the mounting block in the horizontal direction is set between 4-6 mm.

[0007] In one embodiment, an open socket for setting up the rotating shaft is fixedly provided on the inner wall of the mounting shell.

[0008] In one embodiment, the mounting base further includes a partition board connected to the inner wall of the mounting shell. The partition board is used to block the open socket, and a relief hole for avoiding the fork group is provided at the center of the partition board.

[0009] In one embodiment, the square steel transmission assembly includes a transmission block and a square steel shaft. The transmission block includes a column end that cooperates with the square steel shaft and a partition end that cooperates with the fork group. The column end passes through the second through hole on the mounting base. The partition end is provided with a horizontally arranged H-shaped partition, and the long fork extends into one of the openings of the H-shaped partition.

[0010] In one embodiment, the partition end includes a circular seat. The H-shaped partition is arranged on the circular seat. The outer diameter of the circular seat is greater than the diameter of the second through hole. A snap ring for axial limit is connected to the column end.

[0011] In one embodiment, a torsion spring is further sleeved on the rotating shaft. The torsion spring is arranged between the long fork and the short fork, and both ends of the torsion spring respectively abut against the inner wall of the mounting housing.

[0012] On the other hand, the present utility model also provides a technical solution for a door lock, including the push-pull handle mechanism described in any of the above solutions.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The push-pull handle mechanism and the door lock provided by the present utility model are particularly suitable for use in special situations or extreme environments. By specially setting the structure of the follower fork, the force application end and the rotating end of the mounting block are not at the same horizontal height, which can double the rotation angle of the long fork relative to the rotation angle of the mounting block. Pressing the handle body gently can open the door, thus facilitating use in extreme or special situations and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the push-pull handle mechanism in an embodiment of the present utility model;

[0015] Figure 2 It is a schematic diagram of the partial structure of the push-pull handle mechanism in an embodiment of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the handle body and the follower fork in an embodiment of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the mounting housing in an embodiment of the present utility model;

[0018] Figure 5 It is a three-dimensional structure diagram of the follower fork in an embodiment of the present utility model;

[0019] Figure 6 It is the front view of the follower fork in an embodiment of the present utility model;

[0020] Figure 7This is a schematic structural diagram of the square steel drive assembly in the embodiment of the present utility model;

[0021] The meanings of each label in the figure are as follows:

[0022] 1. Handle body; 11. Protruding part; 2. Mounting seat; 21. Mounting shell; 22. Mounting base; 23. First through hole; 24. Open plug table; 25. Partition board; 3. Follow-up fork; 31. Mounting block; 32. Long fork; 33. Short fork; 34. Mounting hole; 4. Square steel drive assembly; 41. Drive block; 411. Column end; 412. Circular seat; 413. H-shaped partition; 414. Snap ring; 42. Square steel shaft; 5. Rotating shaft; 6. Torsion spring. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0025] See Figure 1 、 Figure 2 , this embodiment discloses a push-pull handle mechanism, including two relatively arranged handle bodies 1, both handle bodies 1 are vertically arranged, the lower ends of the handle bodies 1 are respectively connected with mounting seats 2, the two mounting seats 2 are relatively arranged, and the two mounting seats 2 are connected to each other by long bolts and fixed on both sides of the door.

[0026] The lower end of the handle body 1 is also connected with a follow-up fork 3, the follow-up fork 3 passes through the mounting seat 2 and is partially arranged inside the mounting seat 2, and a square steel drive assembly 4 is connected through the follow-up fork 3. By pushing and pulling the handle body 1 to drive the follow-up fork 3 to swing up and down, and then drive the square steel drive assembly 4 to move, so as to control the movement of the oblique tongue drive structure. The oblique tongue drive structure and the matching structure with the square steel belong to the prior art and have nothing to do with the technical problems solved by this solution, so the structure will not be described in detail in this embodiment.

[0027] Specifically, as shown in Figure 3 , a protruding portion 11 is fixedly provided on the side of the lower end of the handle body 1. The protruding portion 11 is provided with an installation groove for connecting the follower fork 3. Correspondingly, the follower fork 3 includes an integrally formed installation block 31 and a fork group. The installation block 31 is adapted to the installation groove. The installation block 31 extends into the installation groove, and bolts are used to fix the relative positions of the two. The fork group extends into the installation seat 2.

[0028] The installation seat 2 is used to assist in the installation of the fork group and the square steel transmission component 4, and includes an installation shell 21 and an installation base 22. The installation shell 21 is used for protecting internal components to ensure the aesthetic appearance. The shape of the installation shell 21 can be circular, square, etc., which is set according to actual needs.

[0029] Combined with Figure 4 , the installation shell 21 is provided with a first through hole 23 through which the fork group can pass, and the inner wall of the installation shell 21 is further connected with a rotating shaft 5 for providing support and rotational support for the follower fork 3. The fork group is rotatably connected to the rotating shaft 5. Specifically, on the inner wall of the installation shell 21, on both sides of the first through hole 23, there are fixedly provided open plug platforms 24 for setting up the rotating shaft 5. The open plug platforms 24 provide support for the rotating shaft 5, and the rotating shaft 5 further provides support for the follower fork 3. To prevent the rotating shaft 5 from disengaging from the open plug platform 24, the installation seat 2 further includes a partition plate 25 fixedly connected to the inner wall of the installation shell 21 by bolts. As shown in Figure 2 , the partition plate 25 can block the open plug platform 24, and the center of the partition plate 25 is provided with an avoidance hole to avoid the fork group.

[0030] The installation base 22 and the installation shell 21 are in a matching shape. It is buckled on the installation shell 21 and fastened with bolts. The installation base 22 is provided with a second through hole for installing the square steel transmission component 4.

[0031] Combined with Figure 7 , the square steel transmission component 4 includes a transmission block 41 and a square steel shaft 42. A square hole is provided in the center of the transmission block 41, and the square steel shaft 42 is inserted into the square hole. In this embodiment, the fork group and the transmission block 41 cooperate. By the up-and-down swing of the fork group, the transmission block 41 can be driven to make a small-amplitude rotation, and then the square steel shaft 42 is driven to rotate.

[0032] Specifically, the transmission block 41 further includes a column end 411 that mates with the square steel shaft 42 and a partition end that mates with the fork group. The column end 411 is configured as a column shape, and the second through hole on the above-mentioned mounting base 22 matches the outer diameter of the column end 411. The column end 411 passes through the second through hole, so that the column end 411 is located outside the mounting seat 2, while the partition end is located inside the mounting seat 2. The partition end includes a circular seat 412 and an H-shaped partition 413 integrally provided on the circular seat 412. The outer diameter of the circular seat 412 is larger than the diameter of the second through hole, so that it cannot pass through the second through hole. The column end 411 is provided with an annular groove for installing the snap ring 414. Through the cooperation of the snap ring 414 and the circular seat 412, the transmission block 41 can be limited, ensuring that the axial position of the transmission block 41 does not shift.

[0033] In this embodiment, the H-shaped partition 413 is horizontally arranged, and two openings are respectively provided at both ends in its horizontal direction. The fork group can extend into one of the openings. The structure of the transmission block 41 provided in this embodiment has strong universality, and both side doors can be installed and applied. Moreover, if any one of the openings on either side is damaged, it can be rotated 180°, and the other side opening can be continued to be used, with a long service life.

[0034] Combined with Figure 5 , Figure 6 , the structure of the follower fork 3 will be described in detail below. According to the foregoing, the follower fork 3 includes an integrally formed mounting block 31 and a fork group, and the mounting block 31 extends into the mounting groove. The fork group further includes a long fork 32 and a short fork 33 respectively fixed to the left and right ends on the other side of the mounting block 31. The long fork 32 and the short fork 33 are respectively provided with mounting holes 34 that match the rotating shaft 5. The rotating shaft 5 and the mounting holes 34 are in clearance fit. Both ends of the rotating shaft 5 extend out of the long fork 32 and the short fork 33 and are placed on the opening plug 24. The long fork 32 is used to cooperate with the opening of the H-shaped partition 413, and the short fork 33 is used to assist in installing the rotating shaft 5 to ensure the overall stability of the follower fork 3. In this embodiment, the mounting holes 34 of the long fork 32 and the short fork 33 are the rotating ends, and the mounting block 31 is the force application end. The axis of the mounting hole 34 and the axis of the mounting block 31 in the horizontal direction are not at the same horizontal height. This setting can make the rotation angle of the long fork 32 multiply relative to the rotation angle of the mounting block 31, that is, gently pressing the handle body 1 can make the long fork 32 drive the square steel transmission assembly 4 to rotate greatly and retract the inclined tongue, thereby facilitating opening the door in extreme or special situations and improving the user experience. Further, the vertical distance h between the axis of the mounting hole 34 and the axis of the mounting block 31 in the horizontal direction is preferably set between 4-6 mm. If the distance is too small, the multiplication of force cannot be achieved. If the distance is too large, the size of the mounting shell 21 will be too large.

[0035] Combined with Figure 3, for facilitating the reset of the handle body 1, a torsion spring 6 is further sleeved on the rotating shaft 5. The torsion spring 6 is arranged between the long fork 32 and the short fork 33. The two ends of the torsion spring 6 respectively abut against the inner wall of the mounting housing 21 and respectively correspond to the upper and lower sides of the fork group. The reset of the handle body 1 belongs to the prior art, and the structure and principle thereof will not be elaborated herein.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A push-pull handle mechanism, characterized in that: include: Two handle bodies (1) arranged opposite to each other, wherein the handle bodies (1) are arranged vertically; The mounting seat (2) comprises a mounting shell (21) and a mounting base (22), wherein the inner wall of the mounting shell (21) is connected to a rotating shaft (5); A follower fork (3) comprises a mounting block (31) and a fork group, wherein the mounting block (31) is connected to the lower end of the handle body (1), and the fork group passes through the mounting housing (21) and comprises a long fork (32) and a short fork (33) connected to the left and right ends of the other side of the mounting block (31), wherein the long fork (32) and the short fork (33) are provided with a mounting hole (34) which is clearance-matched with the rotating shaft (5), and the axis of the mounting hole (34) is at a different height from the axis of the mounting block (31) in the horizontal direction; A square steel transmission assembly (4) matched with the long shift fork (32).

2. The push-pull handle mechanism according to claim 1, characterized in that: The vertical distance between the axis of the mounting hole (34) and the axis of the mounting block (31) in the horizontal direction is set to 4-6 mm.

3. The push-pull handle mechanism according to claim 1, characterized in that: An opening inserting platform (24) for mounting the rotating shaft (5) is fixedly provided on the inner wall of the mounting shell (21).

4. The push-pull handle mechanism according to claim 3, characterized in that: The mounting seat (2) further comprises a baffle plate (25) connected to the inner wall of the mounting shell (21), the baffle plate (25) being used to block the opening inserting platform (24), and a clearance hole for avoiding the shift fork assembly is provided at the center of the baffle plate (25).

5. The push-pull handle mechanism according to claim 1, characterized in that: The square steel transmission assembly (4) comprises a transmission block (41) and a square steel shaft (42); the transmission block (41) comprises a column end (411) matched with the square steel shaft (42) and a baffle end matched with the shift fork assembly; the column end (411) passes through a second through hole on the mounting base (22); the baffle end is provided with a horizontally arranged H-shaped baffle (413); the long shift fork (32) extends into one of the openings of the H-shaped baffle (413).

6. The push-pull handle mechanism according to claim 5, characterized in that: The baffle end comprises a circular seat (412), the H-shaped baffle (413) is arranged on the circular seat (412), the outer diameter of the circular seat (412) is greater than the diameter of the second through hole, and the column end (411) is connected with a retaining spring (414) for axial limiting.

7. The push-pull handle mechanism according to claim 1, characterized in that: The rotating shaft (5) is also sleeved with a torsion spring (6), which is arranged between the long shift fork (32) and the short shift fork (33), and the two ends of the torsion spring (6) are respectively in contact with the inner wall of the mounting shell (21).

8. A door lock, characterized in that: It comprises the push-pull handle mechanism described in any one of claims 1 to 7.

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