CN220395398U

CN220395398U - Push-pull structure and push-pull lock

Info

Publication number: CN220395398U
Application number: CN202321507077.9U
Authority: CN
Inventors: 李骁; 陈正权
Original assignee: Shenzhen Fenda Smart Home Co ltd
Current assignee: Shenzhen Fenda Smart Home Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2024-01-26
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a push-pull structure, which comprises a shell, a push-pull handle, a shifting head, a pivot shaft, a transmission mechanism and a square shaft seat, wherein the push-pull handle is arranged on the shell; the shell is provided with an inner cavity, a connecting port and two mounting parts positioned on the connecting port, the mounting parts are integrally arranged on the shell, and each mounting part is fixedly connected with each of the two ends of the pivot shaft in one-to-one correspondence; the connecting end of the push-pull handle is fixed with the shifting head; the shifting head is provided with a pin joint hole, the middle part of the pin joint shaft can be penetrated through by the pin joint hole and can be matched with the pin joint shaft in a rotating way, so that the push-pull handle can swing around the pin joint shaft along the direction approaching or separating from the shell; the transmission mechanism and the square shaft seat are both arranged in the inner cavity, and the transmission mechanism is connected with the poking head and the square shaft seat so as to drive the square shaft seat to rotate under poking of the poking head. The number of parts is small, and the structure can be simplified, so that the assembly efficiency is improved. The utility model also discloses a push-pull lock which adopts the push-pull structure, and can simplify the structure, thereby improving the assembly efficiency.

Description

Push-pull structure and push-pull lock

Technical Field

The utility model relates to the technical field of push-pull structures, in particular to a push-pull structure and a push-pull lock.

Background

The traditional door basically adopts a mechanical lock and takes a rotary handle as a door opening mode, the mechanical lock is not fixed after a lock tongue of a lock body is retracted, and therefore, a push-pull lock appears on the market, a push-pull structure is arranged on the push-pull lock, a small lock tongue protection part is added in a lock body of the lock, after the lock body of the lock is unlocked, the power of a user is transmitted to a square steel rotating shaft through the push-pull structure, and the square steel rotating shaft drives the small lock tongue to stretch so as to realize the unlocking action of the small lock tongue, which is equivalent to forming secondary protection on the door.

At present, a push-pull structure for push-pull locks on the market generally includes a push-pull handle hinged on a shell, a transmission mechanism capable of being stirred by the push-pull handle and a square steel rotating shaft capable of being driven to rotate by the transmission mechanism, when the push-pull handle is pushed to the direction close to the shell or pulled to the direction far away from the shell, unlocking can be realized, as a push-pull lock with the application number of CN109736638A is proposed in China, the push-pull handle comprises a flat handle body, a block-shaped connecting body connected to the lower end of the back of the handle body and a rotating shaft fixed between the handle body and the block-shaped connecting body, the rotating shaft is arranged along the left-right direction, the lower end of the front face of the shell is provided with a mounting opening, the block-shaped connecting body is arranged in a cavity of the shell through the mounting opening, two pressing blocks are fixed in the cavity of the shell, two pressing blocks are oppositely arranged, and two ends of the rotating shaft respectively penetrate through the two pressing blocks, and the push-pull handle adopts the connecting mode to have the following defects:

because push-and-pull handle is an integral part, in order to conveniently install push-and-pull handle on the casing in a hinged manner, the complex fastening structure is required to be configured to fix the pressing block on the casing, so that the rotating shaft connected with the push-and-pull handle can be reliably fixed on the casing, and the push-and-pull handle has the advantages of complex structure, large number of parts, complicated assembly and low assembly efficiency.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a push-pull structure, which has the advantages of less parts and simple structure, thereby improving the assembly efficiency; the utility model also aims to provide the push-pull lock, which adopts the push-pull structure and can simplify the structure, thereby improving the assembly efficiency.

The utility model adopts the following technical scheme:

the utility model provides a push-pull structure, which comprises a shell, a push-pull handle, a shifting head, a pin joint shaft, a transmission mechanism and a square shaft seat, wherein the push-pull handle is arranged on the shell;

the shell is provided with an inner cavity, a connecting port which is communicated with the inner cavity and can enable the connecting end of the push-pull handle to swing in the inner cavity, and two mounting parts which are positioned on the connecting port, wherein each mounting part is fixedly connected with each of two ends of the pivot shaft in one-to-one correspondence;

the connecting end of the push-pull handle is fixed with the shifting head;

the pushing handle is provided with a pushing handle, and the pushing handle is provided with a pushing hole which is used for pushing the pushing handle to the shell;

the driving mechanism and the square shaft seat are arranged in the inner cavity, and the driving mechanism is connected with the shifting head and the square shaft seat so as to drive the square shaft seat to rotate under the shifting of the shifting head.

Further, the installation portion comprises a positioning groove matched with the end portion of the pivot shaft and an avoidance notch communicated with the positioning groove and located at the top of the positioning groove, and the avoidance notch can enable the end portion of the pivot shaft to radially enter and exit the positioning groove.

Further, the pin joint axle includes cylinder portion and divides to arrange in the flat head portion at the both ends of cylinder portion, cylinder portion with the pin joint hole cooperation, flat head portion passes through the fastener to be fixed in the constant head tank, the upper and lower both sides of flat head all are equipped with plane portion, lie in plane portion of the upside of flat head portion with the head terminal surface of fastener offsets, lie in plane portion of the downside of flat head portion with the bottom terminal surface of constant head tank offsets.

Further, the transmission mechanism comprises a movable push rod, a rack, a transmission gear, a shifting wheel and a square shaft gear, wherein the movable push rod can be slidably arranged on the shell and connected with the shifting head, the rack is fixed with the movable push rod, the transmission gear is meshed with the rack, the shifting wheel is fixed with the transmission gear, the square shaft gear is meshed with the shifting wheel, and the square shaft seat is fixed with the square shaft gear.

Further, the number of the racks is two, and the two racks are respectively arranged on two opposite sides of the transmission gear.

Further, the transmission gear and the thumb wheel are integrally arranged.

Further, the transmission gear and the thumb wheel are sequentially arranged from bottom to top.

Further, a reset mechanism is further arranged in the inner cavity and connected with the shell and the shifting head, and the reset mechanism is used for driving the shifting head to swing towards the direction capable of driving the push-pull handle to approach the shell.

Further, the reset mechanism comprises two torsion springs which are respectively arranged at two opposite sides of the shifting head, each torsion spring comprises a torsion spring coil and two connecting arms which extend from the torsion spring coil, the torsion spring coil can be rotatably sleeved on the shell, and the two connecting arms on the same torsion spring respectively support against two opposite sides of the shifting head.

The utility model also provides a push-pull lock, which comprises the push-pull structure.

Compared with the prior art, the utility model has the beneficial effects that:

when the push-pull handle is installed, the poking head and the pin joint shaft are connected together, namely the pin joint shaft is inserted into the pin joint hole, then the pin joint shaft and the shell are fixed, namely the two ends of the pin joint shaft are respectively fixed with the installation part, then the connecting end of the push-pull handle is inserted into the connecting port, and finally the push-pull handle and the poking head are fixed together, so that the push-pull handle can be assembled.

The push-pull lock of the utility model can simplify the structure due to the adoption of the push-pull structure, thereby improving the assembly efficiency.

Drawings

FIG. 1 is a schematic diagram of a push-pull structure of the present utility model;

FIG. 2 is a cross-sectional view of a push-pull structure of the present utility model;

FIG. 3 is an exploded view of the push-pull structure of the present utility model;

FIG. 4 is a schematic diagram of the structure of the shifting head, the transmission mechanism, the square shaft seat and the reset mechanism of the present utility model in a first view angle;

fig. 5 is a schematic structural diagram of the shifting head, the transmission mechanism, the square shaft seat and the reset mechanism according to the present utility model under a second view angle.

In the figure: 10. a housing; 11. an inner cavity; 12. a connection port; 13. a mounting part; 131. a positioning groove; 20. push-pull handle; 21. a connection end; 30. a poking head; 40. a pin joint shaft; 41. a cylindrical portion; 42. a flat head; 421. a planar portion; 50. a transmission mechanism; 51. a movable push rod; 52. a rack; 53. a double-layer gear; 531. a transmission gear; 532. a thumb wheel; 54. a square shaft gear; 60. a square shaft seat; 70. a torsion spring; 71. torsion spring coils; 72. and a connecting arm.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Referring to fig. 1-5, a push-pull structure according to a preferred embodiment of the present utility model is shown, comprising a housing 10, a push-pull handle 20, a dial 30, a pivot shaft 40, a transmission mechanism 50, and a square shaft seat 60;

the shell 10 is provided with an inner cavity 11, a connecting port 12 which is communicated with the inner cavity 11 and can enable a connecting end 21 of the push-pull handle 20 to swing in the inner cavity, and two mounting parts 13 positioned on the connecting port 12, wherein the mounting parts 13 are integrally arranged on the shell 10, namely the mounting parts 13 and the shell 10 are integrally formed, and each mounting part 13 is fixedly connected with each of two ends of the pivot shaft 40 in one-to-one correspondence;

the connecting end 21 of the push-pull handle 20 is fixed with the poking head 30;

the shifting head 30 is provided with a pivot hole, the pivot hole can be used for the middle part of the pivot shaft 40 to penetrate through and be matched with the pivot shaft 40 in a rotatable manner, so that the push-pull handle 20 can swing around the pivot shaft 40 along the direction approaching or separating from the shell 10;

the transmission mechanism 50 and the square shaft seat 60 are both arranged in the inner cavity 11, and the transmission mechanism 50 is connected with the shifting head 30 and the square shaft seat 60 so as to drive the square shaft seat 60 to rotate under the shifting of the shifting head 30.

In the push-pull structure of the present utility model, when the push-pull handle 20 is installed, the pulling head 30 and the pivot shaft 40 are connected together, that is, the pivot shaft 40 is inserted into the pivot hole, and then the pivot shaft 40 and the housing 10 are fixed, that is, both ends of the pivot shaft 40 are respectively fixed with the installation part 13, then the connecting end 21 of the push-pull handle 20 is inserted into the connecting port 12, and finally the push-pull handle 20 and the pulling head 30 are fixed together, so that the push-pull handle 20 can be assembled.

Referring to fig. 3, to facilitate the fixation of both the end of the pivot shaft 40 and the mounting portion 13, the mounting portion 13 includes a positioning slot 131 that is matched with the end of the pivot shaft 40, and an avoidance notch that is communicated with the positioning slot 131 and is located at the top of the positioning slot 131, where the avoidance notch can allow the end of the pivot shaft 40 to enter and exit the positioning slot 131 in a radial direction.

Referring to fig. 3 to 5, in order to achieve reliable fixation of both the end of the pivot shaft 40 and the mounting portion 13, the pivot shaft 40 includes a cylindrical portion 41 and a flat head portion 42 disposed at both ends of the cylindrical portion 41, the cylindrical portion 41 and the pivot hole are engaged, the flat head portion 42 is fixed in the positioning groove 131 by a fastener, both upper and lower sides of the flat head portion 42 are provided with flat portions 421, the flat portion 421 on the upper side of the flat head portion 42 abuts against the head end face of the fastener, and the flat portion 421 on the lower side of the flat head portion 42 abuts against the bottom end face of the positioning groove 131.

In a preferred embodiment, the fastening member is a screw, so that the structure is further simplified, the assembly efficiency is higher, and in other embodiments, the fastening member may be a bolt.

Referring to fig. 2 to 5, specifically, the transmission mechanism 50 includes a movable push rod 51, a rack 52, a transmission gear 531, a thumb wheel 532 and a square shaft gear 54, the movable push rod 51 can be slidably disposed on the housing 10 and connected with the thumb wheel 30, the rack 52 is fixed to the movable push rod 51, the transmission gear 531 is meshed with the rack 52, the thumb wheel 532 is fixed to the transmission gear 531, the square shaft gear 54 is meshed with the thumb wheel 532, the square shaft seat 60 is fixed to the square shaft gear 54, that is, the thumb wheel 30 is driven to swing by pushing and pulling the handle 20, the thumb wheel 30 swings to drive the movable push rod 51 to move, the movable push rod 51 moves to drive the rack 52 to move, thereby driving the transmission gear 531 to rotate, and finally driving the square shaft seat 60 to rotate.

As a preferred embodiment, the number of the racks 52 is two, and the two racks 52 are disposed on opposite sides of the transmission gear 531, which can improve the structural stability of the transmission mechanism 50 by the structure in which the two racks 52 and one transmission gear 531 are simultaneously engaged, thereby achieving stable transmission.

As a preferred embodiment, the transmission gear 531 and the dial 532 are integrally provided to simplify the structure, so that the assembly efficiency can be further improved.

As a preferred embodiment, the transmission gear 531 and the thumb wheel 532 are sequentially arranged from bottom to top to form a double-layer gear 53, and the double-layer gear 53 can fully utilize the height space of the housing 10, so as to avoid excessive occupation of the lateral space of the housing 10, so as to reduce the lateral size of the housing 10, facilitate the realization of the miniaturized design of the push-pull lock, and reduce the occupation space.

Referring to fig. 2-5, in order to facilitate automatic resetting of the pulling head 30, a resetting mechanism is further provided in the inner cavity 11, the resetting mechanism is connected to the housing 10 and the pulling head 30, and the resetting mechanism is used for driving the pulling head 30 to swing in a direction capable of driving the push-pull handle 20 to approach the housing 10.

Specifically, the reset mechanism includes two torsion springs 70 disposed on opposite sides of the shift head 30, the torsion springs 70 include torsion spring coils 71 and two connecting arms 72 extending from the torsion spring coils 71, the torsion spring coils 71 can be rotatably sleeved on the housing 10, and the two connecting arms 72 on the same torsion spring 70 are respectively abutted on opposite sides of the shift head 30.

The utility model also provides a push-pull lock, which comprises the push-pull structure. The push-pull lock of the utility model can simplify the structure due to the adoption of the push-pull structure, thereby improving the assembly efficiency.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The push-pull structure is characterized by comprising a shell, a push-pull handle, a shifting head, a pivot shaft, a transmission mechanism and a square shaft seat;

the shell is provided with an inner cavity, a connecting port which is communicated with the inner cavity and can enable the connecting end of the push-pull handle to swing in the inner cavity, and two mounting parts which are positioned on the connecting port, wherein the mounting parts are integrally arranged on the shell, and each mounting part is fixedly connected with each of two ends of the pivot shaft in one-to-one correspondence;

the connecting end of the push-pull handle is fixed with the shifting head;

2. A push-pull structure according to claim 1, wherein the mounting portion includes a positioning slot cooperating with the end portion of the pivot shaft and a relief notch communicating with the positioning slot and located at the top of the positioning slot, the relief notch being capable of allowing the end portion of the pivot shaft to enter and exit the positioning slot in a radial direction.

3. The push-pull structure according to claim 2, wherein the pivot shaft comprises a cylindrical portion and flat head portions respectively arranged at two ends of the cylindrical portion, the cylindrical portion is matched with the pivot hole, the flat head portions are fixed in the positioning groove through fasteners, flat portions are arranged on the upper side and the lower side of the flat head portions, the flat portions on the upper side of the flat head portions are abutted against the head end faces of the fasteners, and the flat portions on the lower side of the flat head portions are abutted against the bottom end faces of the positioning groove.

4. A push-pull structure as claimed in claim 1, wherein said transmission mechanism comprises a movable push rod slidably disposed on said housing and connected to said pick, a rack gear engaged with said movable push rod, a transmission gear engaged with said rack gear, a pick wheel engaged with said transmission gear, and a square shaft gear engaged with said pick wheel, said square shaft seat being secured with said square shaft gear.

5. A push-pull structure according to claim 4, wherein the number of racks is two, and the two racks are disposed on opposite sides of the transmission gear.

6. A push-pull structure according to claim 4, wherein said drive gear and said thumbwheel are integrally provided.

7. A push-pull structure according to claim 4, wherein the transmission gear and the thumb wheel are sequentially arranged from bottom to top.

8. A push-pull structure according to claim 1, wherein a reset mechanism is further provided in the inner cavity, the reset mechanism connects the housing and the shift head, and the reset mechanism is used for driving the shift head to swing in a direction capable of driving the push-pull handle to approach the housing.

9. The push-pull structure of claim 8, wherein the reset mechanism comprises two torsion springs separately disposed on opposite sides of the shift head, the torsion springs comprise torsion coils and two connecting arms extending from the torsion coils, the torsion coils are rotatably sleeved on the housing, and the two connecting arms on the same torsion spring respectively support against opposite sides of the shift head.

10. A push-pull lock comprising a push-pull structure according to any one of claims 1-9.