Push type door lock structure

Abstract

The invention relates to a pressing type door lock structure, and belongs to the technical field of electric ovens. A spring bolt part and a spring pressing part are arranged on a small door, the spring bolt part and the spring pressing part are connected through a connecting part, and when the spring pressing part is pressed down, the spring pressing part drives a spring bolt of the spring bolt part to slide through the connecting part, so that the spring bolt retracts; when the spring pressing part is loosened, the spring pressing part is ejected outwards under the counter-acting force of the spring, the spring bolt is ejected outwards, so that the locking state is achieved, the friction coefficient is reduced through the contact mode, and the problems that in the prior art, continuous mechanical pressure is caused to a hinge when a door is opened and closed frequently, and the hinge cannot be locked are solved. The hinge is easy to loosen or abrade after a long time, so that the small door and the upper cover cannot be tightly closed.

Description

Technical Field

[0001] The invention belongs to the technical field of electric ovens, and in particular relates to a push-type door lock structure. Background Art

[0002] Among many kitchen appliances, electric ovens have become one of the commonly used equipment for modern family cooking due to their versatility and convenience. At present, the common double-door electric ovens with upper covers on the market generally use hinged door locks. The small door and the upper cover set on the double-door electric oven are usually connected by hinges. The hinges are installed on the side walls of the oven. When the oven is closed, the hinges enable the small door and the upper cover to be tightly closed together. At the same time, the hinged door lock can ensure the sealing of the oven door when it is closed to avoid hot air leakage, and prevent users from accidentally touching the high-temperature oven during operation, thereby reducing safety hazards.

[0003] However, there are some problems with the hinged door lock structure of the double-door electric oven with an upper cover when it is used: when the double-door electric oven is used in a kitchen environment, the electric oven will be used frequently. Frequent opening and closing of the door will cause continuous mechanical pressure on the hinge, which may easily lead to loosening or wear of the hinge over a long period of time, resulting in the small door and the upper cover being unable to close tightly. Finally, when the upper cover is closed, the small door is easily opened by mistake, affecting the use. In this regard, a push-type door lock structure is proposed. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a push-type door lock structure, which solves the problem in the prior art that frequent opening and closing of the door will cause continuous mechanical pressure on the hinge, which may easily cause the hinge to loosen or wear over a long period of time, resulting in the inability to close tightly between the small door and the upper cover.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A push-type door lock structure comprises a lock tongue part and a spring pressing part respectively arranged on a small door, wherein the lock tongue part and the spring pressing part are connected via a connecting part, and the spring pressing part drives the lock tongue of the lock tongue part to lock or unlock with an upper cover via the connecting part.

[0007] As a further solution of the present invention, a hollow handle is provided on the small door, the spring pressing part and the connecting part are both arranged in the cavity of the hollow handle, and the two ends of the connecting part respectively pass through the hollow handle and are connected to the lock tongue part.

[0008] As a further solution of the present invention, there are two locking tongue parts, and the two locking tongue parts are respectively connected to two ends of the connecting part.

[0009] As a further solution of the present invention, the spring pressing portion includes a button and a button spring, the two ends of the button spring are respectively connected to the inner wall of the hollow handle and the button, the button is arranged at the center of the connecting portion, and the button slidably passes through the hollow handle.

[0010] As a further solution of the present invention, the lock tongue portion includes a lock tongue fixing piece, a lock tongue spring and a lock tongue arranged on the small door, the end of the connecting portion slides through the lock tongue fixing piece, the lock tongue fixing piece is provided with a slide groove, the lock tongue is slidably arranged in the slide groove, and one end of the lock tongue slides through the slide groove, the two ends of the lock tongue spring are respectively connected to the side wall of the slide groove and the other end of the lock tongue, and the end of the connecting portion drives the lock tongue to slide along the slide groove by cooperating with the groove on the other end of the lock tongue, so that the lock tongue and the upper cover are locked or unlocked.

[0011] As a further solution of the present invention, the hollow handle includes a fixed handle and a handle cover that is snap-connected to the fixed handle, a cavity structure is formed between the fixed handle and the handle cover, a first guide rail is arranged at the center of the handle cover within the cavity structure between the fixed handle and the handle cover, and guide blocks are symmetrically arranged at both ends of the handle cover, the connecting part is a linkage rod, and the linkage rod cooperates with the first guide rail and the guide block.

[0012] As a further solution of the present invention, the end of the connecting portion is a conical structure, the inner wall of the groove is an inner conical structure, and the conical structure of the end of the connecting portion cooperates with the inner conical structure of the inner wall of the groove.

[0013] As a further solution of the present invention, the end of the connecting portion is provided with a roller that matches with the groove at the other end of the locking tongue.

[0014] As a further solution of the present invention, a protrusion is provided on the side wall of the lock tongue, and a second guide rail matching with the protrusion is provided on the side wall of the slide groove of the lock tongue fixing piece.

[0015] The beneficial effects of the present invention are:

[0016] Through the lock tongue part and the spring pressing part on the small door, the lock tongue part and the spring pressing part are connected by a connecting part. When the spring pressing part is pressed, the spring pressing part drives the lock tongue of the lock tongue part to slide through the connecting part, so that the lock tongue retracts, thereby achieving an unlocked state between the lock tongue and the upper cover. When the spring pressing part is released, the spring pressing part is pushed outward under the reaction force of the spring, and the lock tongue is pushed outward, thereby achieving a locked state. This contact mode reduces the friction coefficient. Compared with the rotational friction of the hinged door lock, the wear degree of sliding friction is much smaller. In addition, since the lock here is a lock tongue structure, there is a groove mentioned below in the lock tongue structure The groove is inclined, that is, an inclined groove. The design of the inclined groove makes the pressure distribution on the lock tongue more uniform, avoiding wear caused by local pressure concentration. During the rotation of the hinged door lock, the pressure may be concentrated at certain points, resulting in increased wear at these points. When the door lock is in the open or closed state, the design of the inclined groove sliding helps to reduce the impact force caused by the opening and closing of the door. Less impact force means less wear on the lock tongue and fixings, thereby solving the problem in the prior art that frequent opening and closing of the door will cause continuous mechanical pressure on the hinge, which may easily cause the hinge to loosen or wear over a long period of time, resulting in the inability to close tightly between the small door and the upper cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation of the lead screw of the present invention;

[0020] Figure 3 It is a schematic diagram of the installation of the bump of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the horizontal rotating mechanism of the present invention;

[0022] Figure 5 It is an expanded view of the cam structure of the present invention.

[0023] Description of main component symbols:

[0024] In the figure: 1. small door; 2. fixed handle; 3. handle cover; 4. button; 5. button spring; 6. linkage rod; 7. lock tongue fixing piece; 8. lock tongue spring; 9. lock tongue; 10. upper cover. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] See also Figure 1 - Figure 5 The present embodiment provides a push-type door lock structure, including a lock tongue 9 and a spring pressing portion respectively arranged on the small door 1, the lock tongue 9 and the spring pressing portion are connected by a connecting portion, and the spring pressing portion drives the lock tongue 9 to lock or unlock the lock tongue 9 and the upper cover 10 through the connecting portion. The push-type door lock structure here is designed on the current double-door electric oven with an upper cover 10. When designing the lock, wear-resistant and high-hardness materials are selected to manufacture components such as the lock tongue 9, the spring pressing portion and the connecting portion. First of all, the material ensures that the lock can withstand long-term use and friction and is not easy to wear.

[0027] At present, the common double-door electric ovens with upper covers 10 on the market generally use hinged door locks. In this double-door electric oven, the small door 1 and the upper cover 10 arranged on the oven are usually connected by hinges. The hinges are installed on the side walls of the oven. When the oven is closed, the hinges enable the small door 1 and the upper cover 10 to be tightly closed together. However, there are some problems with the hinged door lock structure of the double-door electric oven with the upper cover 10 during use. For example, when the double-door electric oven is used in a kitchen environment, the electric oven will be frequently used. Frequent opening and closing of the door will cause continuous mechanical pressure on the hinge, which will easily cause the hinge to loosen or wear over a long period of time, resulting in the inability to tightly close the small door 1 and the upper cover 10. Finally, when the upper cover 10 is closed, the small door 1 is easily opened by mistake, affecting use.

[0028] In order to solve this problem, in the present embodiment, the existing hinge structure is replaced by the lock tongue 9 and the spring pressing part on the small door 1, and the lock tongue 9 and the spring pressing part are connected by a connecting part. When the spring pressing part is pressed, the spring pressing part drives the lock tongue 9 of the lock tongue 9 to slide through the connecting part, so that the lock tongue 9 retracts, thereby achieving the unlocked state between the lock tongue 9 and the upper cover 10. When the spring pressing part is released, the spring pressing part is pushed outward under the reaction force of the spring, and the lock tongue 9 is pushed outward, thereby achieving the locked state. This contact mode reduces the friction coefficient. Compared with the rotational friction of the hinged door lock, the wear degree of sliding friction is much smaller. In addition, since the lock here is a lock tongue 9 structure, the lock tongue 9 structure has the groove mentioned below, and the groove is inclined, that is, an inclined groove. The design of the inclined groove makes the pressure distribution on the lock tongue 9 more uniform, avoiding the wear caused by local pressure concentration, while the hinged door lock may concentrate on certain points during the rotation process, resulting in increased wear of these points.

[0029] When the door lock is in the open or closed state, the design of the inclined slot sliding helps to reduce the impact force caused by the opening and closing of the door. Less impact force means less wear on the lock tongue 9 and the fixings, thereby solving the problem in the prior art that frequent opening and closing of the door will cause continuous mechanical pressure on the hinges, which may easily cause the hinges to loosen or wear over a long period of time, resulting in the inability to close tightly between the small door 1 and the upper cover 10.

[0030] Since the double-door electric oven is used in a kitchen environment, there will inevitably be oil smoke and moisture in the kitchen environment. In order to prevent dust and moisture in this environment and enhance the durability of the double-door electric oven door lock, in one embodiment, a hollow handle is provided on the small door 1, and the spring pressing part and the connecting part are both arranged in the cavity of the hollow handle. The two ends of the connecting part respectively pass through the hollow handle and are connected to the lock tongue 9. The design of the internal structure helps to prevent dust and moisture from entering the interior of the lock, reducing damage to the lock caused by environmental factors. The spring pressing part and the connecting part are both located in the cavity of the hollow handle, which helps to reduce wear caused by frequent use. This design not only improves the overall safety, durability and user experience of the electric oven, but also reduces maintenance costs and damage risks.

[0031] In order to make the door lock structure more effective in locking the lock tongue 9 and the upper cover 10, in one embodiment, the number of the lock tongue 9 is two, and the two lock tongues 9 are respectively connected to the two ends of the connecting part.

[0032] In order to prevent the door lock structure between the small door 1 and the upper cover 10 from being easily worn and loosened when the door is frequently opened and closed, while maintaining good airtightness, in one embodiment, the spring pressing part includes a button 4 and a button spring 5, and the two ends of the button spring 5 are respectively connected to the inner wall of the hollow handle and the button 4, and the button 4 is arranged at the center of the connecting part, and the button 4 slides through the hollow handle. The design of the spring pressing part and the button 4 allows the user to easily unlock the door by pressing the button when closing the door. The operation is simple and does not require additional force. The two ends of the button spring 5 are respectively connected to the inner wall of the hollow handle and the button 4. Such a design increases the stability of the structure and avoids structural loosening caused by long-term use or external impact. The button 4 slides through the hollow handle, reducing the direct friction between moving parts, thereby reducing wear and increasing the service life of the parts. The space inside the hollow handle is more efficiently utilized, making the overall design more compact, which helps to reduce the volume of the electric oven and save space.

[0033] In order to further reduce the excessive wear caused by the friction between the lock tongue 9 and the fixing part during frequent use, thereby affecting the opening and closing of the oven door, preventing the door from being accidentally opened during the use of the oven, and preventing the small door 1 from being accidentally opened when the small door 1 is opened or the upper cover 10 is closed, in this regard, in one embodiment, the lock tongue 9 part includes a lock tongue 9 fixing part 7, a lock tongue spring 8 and a lock tongue 9 arranged on the small door 1, the end of the connecting part slides through the lock tongue 9 fixing part 7, a slide groove is arranged on the lock tongue 9 fixing part 7, the lock tongue 9 is slidably arranged in the slide groove, and one end of the lock tongue 9 slides through the slide groove, the two ends of the lock tongue spring 8 are respectively connected to the side wall of the slide groove and the other end of the lock tongue 9, the end of the connecting part cooperates with the groove on the other end of the lock tongue 9 to drive the lock tongue 9 to slide along the slide groove, so that the lock tongue 9 and the upper cover 10 are locked or unlocked, the groove on the other end of the lock tongue 9 is an inclined groove, and the lock tongue 9 fixing part 7 is provided with a groove. The function is to fix the lock tongue 9 while allowing it to slide in the inclined groove. This design can ensure that the lock tongue 9 maintains a stable track during movement, reducing additional wear caused by the deviation of the movement trajectory. The slide groove and the inclined groove design reduce wear. The design of the lock tongue 9 fixing piece 7 makes the lock tongue 9 on a stable track during movement, reducing additional wear caused by the deviation of the movement trajectory, thereby extending the service life of the lock tongue 9 and the lock tongue 9 fixing piece 7. Since the lock tongue 9 slides in the slide groove instead of moving freely in the open space, the wear caused by friction and collision is reduced. The locking and unlocking actions between the lock tongue 9 and the upper cover 10 are more reliable and precise, reducing malfunctions caused by inaccurate positioning of the lock tongue 9. The locking mechanism between the lock tongue 9 and the upper cover 10 improves the safety of the oven and ensures that the door will not be accidentally opened during the use of the oven.

[0034] One point that needs to be explained is that since the double-door electric oven is used in the kitchen and needs to be opened and closed frequently, in order to avoid the connection part from being out of position after multiple openings and closings, which would affect the use of the door lock, in one embodiment, the hollow handle includes a fixed handle 2 and a handle cover 3 that is snap-connected to the fixed handle 2, a cavity structure is formed between the fixed handle 2 and the handle cover 3, a first guide rail is provided at the center of the handle cover 3 in the cavity structure between the fixed handle 2 and the handle cover 3, and guide blocks are symmetrically provided at both ends of the handle cover 3, the connection part is a linkage rod 6, the linkage rod 6 cooperates with the first guide rail and the guide block, and the linkage rod 6 cooperates with the first guide rail and the guide block. , ensuring that the linkage rod 6 will not be out of position during movement, and the inclined groove design of the linkage rod 6 and the lock tongue 9 can make the movement trajectory of the lock tongue 9 smoother, reducing the additional wear caused by the uneven movement trajectory. In terms of design, the linkage rod 6 and the lock tongue 9 are connected through the inclined groove. This structure can reduce the direct contact area between the two, thereby reducing friction. Since friction is one of the main causes of wear, this design helps to extend the service life of the tool. The design of the inclined groove makes the force evenly distributed on the lock tongue 9, avoiding excessive local pressure, which can reduce the wear caused by local stress concentration.

[0035] In order to ensure that the lock tongue 9 and the upper cover 10 can be locked or unlocked smoothly, and at the same time, friction and wear can be further reduced, in one embodiment, the end of the connecting portion is designed to be a conical structure, and the inner wall of the groove is an inner conical structure. The conical structure at the end of the connecting portion cooperates with the inner conical structure of the inner wall of the groove. The end of the connecting portion is conical and cooperates with the conical inner wall of the groove. The conical design helps to provide a self-locking function when the lock tongue 9 slides, and at the same time, the contact area gradually increases during the sliding process, thereby dispersing pressure and reducing wear. Alternatively, a roller that cooperates with the groove at the other end of the lock tongue 9 is provided at the end of the connecting portion. The roller is installed at the end of the connecting portion to cooperate with the groove at the other end of the lock tongue 9. The roller can roll in the groove, which greatly reduces friction. At the same time, the circular structure of the roller can ensure smooth movement of the lock tongue 9. The above two schemes can be adopted according to actual needs.

[0036] In addition, the use of special low-friction coatings on the contact surfaces of the connection parts and grooves, such as molybdenum disulfide (MoS2) or polytetrafluoroethylene (PTFE) coatings, can effectively reduce friction and wear. In addition, the use of self-lubricating materials to make the connection parts or grooves can maintain a low friction coefficient even during long-term use.

[0037] Furthermore, in order to increase the overall stability of the lock tongue 9 when unlocking and locking, in one embodiment, the side wall of the lock tongue 9 is provided with a protrusion, and the side wall of the slide groove of the lock tongue 9 fixing piece 7 is provided with a second guide rail matching with the protrusion. The cooperation between the protrusion and the second guide rail can more accurately guide the movement of the lock tongue 9, ensure the linearity of the lock tongue 9 during the sliding process, avoid deviation or shaking, and improve the stability and reliability of the lock. The structural design of the protrusion and the second guide rail can also increase the overall structural strength of the lock tongue 9 and the fixing piece.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A push-type door lock structure, characterized in that: The utility model comprises a locking tongue part and a spring pressing part respectively arranged on the small door, wherein the locking tongue part and the spring pressing part are connected via a connecting part, and the spring pressing part drives the locking tongue of the locking tongue part to lock or unlock with the upper cover via the connecting part.

2. A push-type door lock structure according to claim 1, characterized in that: The small door is provided with a hollow handle, the spring pressing portion and the connecting portion are both arranged in the cavity of the hollow handle, and the two ends of the connecting portion respectively penetrate the hollow handle and are connected with the locking tongue portion.

3. A push-type door lock structure according to claim 1, characterized in that: There are two locking tongue parts, and the two locking tongue parts are respectively connected to the two ends of the connecting part.

4. A push-type door lock structure according to claim 2, characterized in that: The spring pressing part includes a button and a button spring. Two ends of the button spring are respectively connected to the inner wall of the hollow handle and the button. The button is arranged at the center of the connecting part, and the button slidably penetrates the hollow handle.

5. A push-type door lock structure according to claim 2, characterized in that: The lock tongue part includes a lock tongue fixing part, a lock tongue spring and a lock tongue arranged on the small door, the end of the connecting part slides through the lock tongue fixing part, a sliding groove is arranged on the lock tongue fixing part, the lock tongue is slidingly arranged in the sliding groove, and one end of the lock tongue slides through the sliding groove, the two ends of the lock tongue spring are respectively connected to the side wall of the sliding groove and the other end of the lock tongue, and the end of the connecting part drives the lock tongue to slide along the sliding groove by cooperating with the groove on the other end of the lock tongue, so that the lock tongue and the upper cover are locked or unlocked.

6. A push-type door lock structure according to claim 5, characterized in that: The hollow handle includes a fixed handle and a handle cover that is snap-connected to the fixed handle, a cavity structure is formed between the fixed handle and the handle cover, a first guide rail is arranged at the center of the handle cover in the cavity structure between the fixed handle and the handle cover, and guide blocks are symmetrically arranged at both ends of the handle cover, the connecting part is a linkage rod, and the linkage rod cooperates with the first guide rail and the guide block.

7. A push-type door lock structure according to claim 5, characterized in that: The end of the connecting portion is a conical structure, and the inner wall of the groove is an inner conical structure. The conical structure of the end of the connecting portion matches the inner conical structure of the inner wall of the groove.

8. The push-type door lock structure according to claim 5, characterized in that: The end of the connecting part is provided with a roller which matches with the groove at the other end of the locking tongue.

9. The push-type door lock structure according to claim 5, characterized in that: The side wall of the lock tongue is provided with a protrusion, and the side wall of the slide groove of the lock tongue fixing piece is provided with a second guide rail matched with the protrusion.

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