Simple door sill

Abstract

The utility model discloses a simple door fence which comprises a frame, a door leaf portion capable of being opened or closed is hinged in the frame, an upper lock is arranged between an angular point of a non-hinged side of the upper edge of the door leaf portion and the upper portion of the frame, and a lower lock is arranged between an angular point of a non-hinged side of the lower edge of the door leaf portion and the lower portion of the frame. And a positioning structure capable of locking the opening state of the door leaf part when the door leaf part is opened to 90 degrees is arranged at the hinged part of an angular point, far away from the upper lock, of the upper edge of the door leaf part and the upper part of the adjacent frame. The integral structure of the door fence is simpler, the number of complex mechanical parts is reduced, the manufacturing and maintenance cost is reduced, and the durability and the reliability of products are improved. Through the improvements, not only can the door fence provide higher safety and convenience, but also the cost is reduced, and a safer and more reliable child protection product is provided.

Description

Technical Field

[0001] The utility model relates to the field of safety barriers, and particularly to a simple barrier. Background Art

[0002] With the continuous improvement of the quality of family life, parents pay more and more attention to the safety of their children. Especially when children start to learn to crawl and walk, every corner of the home can become a potential hazard. To provide a safe activity space for children, child safety barriers have become a necessity for more and more families. A child safety barrier is a safety device designed specifically to prevent infants and young children from entering dangerous areas. It is usually installed at doorways, stairways or other areas that need to be isolated, and physically isolates children from potential dangerous areas. Child safety barriers can not only effectively protect the safety of children, but also separate pets from the living environment, bringing more peace of mind and convenience to parents.

[0003] Some child safety barriers are equipped with an automatic closing function and a double locking device, which improves convenience and safety, but their complex internal structure and numerous components also bring problems. First of all, the complexity of the locks increases the manufacturing cost. These locks contain multiple mechanical components, such as springs, gears, levers, latches, etc., which require precision machining and assembly, increasing the production process and process requirements, thus driving up the manufacturing cost and ultimately being passed on to consumers, resulting in an increase in the product price.

[0004] Secondly, the complex lock structure is prone to failure. Each component inside the lock needs to fit tightly. If a certain component wears, deforms or breaks, it will affect the normal operation of the lock. For example, gear wear will cause the locking or unlocking to be not smooth. With numerous components, it is difficult to troubleshoot and repair faults, and users may not be able to solve them by themselves during daily use, increasing the inconvenience of use and the maintenance cost.

[0005] In addition, the complex lock design may increase the unlocking difficulty in case of an emergency. Although the double locking device increases safety, it also makes the unlocking steps more cumbersome. In case of an emergency, when it is necessary to quickly open the barrier to evacuate the child, the complex unlocking procedure may delay time and cause danger. Parents may make mistakes when operating complex locks in a hurry, affecting the efficiency of emergency handling. Especially for older parents or nannies, they may not be familiar with the operation of modern locks and are prone to problems during use. Complex locks require careful reading of the instruction manual and even multiple operation practices to master proficiently, and this learning process is a burden for busy families.

[0006] Therefore, the internal structures of the locks of some existing child safety gates are complex and have numerous components. Although they increase some convenience and safety, they also bring problems such as high manufacturing costs, high failure rates, difficult emergency unlocking, high learning costs, and potential safety hazards, and further optimization and improvement are needed. Summary of the Invention

[0007] The purpose of the present utility model is to provide a simple gate that simplifies the complex internal structure of the lock while ensuring a balance between safety and convenience, thereby providing a more reliable and easier-to-use simple gate.

[0008] To achieve the above object, the present utility model adopts the following solution: A simple gate includes a "U"-shaped frame. A door leaf portion that can be opened or closed forward and backward is hinged within the frame. An upper lock is provided between the corner point on the non-hinged side of the upper edge of the door leaf portion and the upper part of the frame. A lower lock is provided between the corner point on the non-hinged side of the lower edge of the door leaf portion and the lower part of the frame. A positioning structure is provided at the hinge joint between the upper part of the adjacent frame and the corner point of the upper edge of the door leaf portion away from the upper lock, which can lock the open state of the door leaf portion when the door leaf portion is opened relative to the frame by 90 degrees. Through this solution, the overall structure of the gate is simplified, the number of complex mechanical components is reduced, the manufacturing cost is lowered, and the durability and reliability of the product are improved.

[0009] As a further solution of the present utility model, the frame is composed of two spaced-apart vertical columns on the left and right and a bottom beam connecting the bottoms of the two vertical columns. The upper lock includes an upper lock housing provided at the corner point on the non-hinged side of the upper edge of the door leaf portion. A horizontal upper sliding groove is provided within the upper lock housing. A lock tongue hole communicating with the horizontal upper sliding groove penetrates through one side of the upper lock housing facing the adjacent vertical column. A lock hole is provided on the vertical column adjacent to the lock tongue hole. A lock tongue assembly whose one end can extend out of the lock tongue hole and insert into the lock hole is movably provided within the upper sliding groove. A key slot communicating with the horizontal upper sliding groove penetrates through the top of the upper lock housing. An unlocking button is provided within the key slot. One end of the unlocking button is hinged within the key slot. An extrusion member that extends downward into the horizontal upper sliding groove and can squeeze the lock tongue assembly to retreat along the horizontal upper sliding groove when the unlocking button is flipped downward is provided at the bottom of the unlocking button. A first reset member that can reset again after the lock tongue assembly is squeezed and retreated by the extrusion member is provided on the extrusion member. After the structure is simplified, the upper lock is composed of an upper lock housing, an upper sliding groove, a lock tongue hole, a lock tongue assembly, an unlocking button, and a first reset member. The number of components that require precision machining and assembly is reduced, the manufacturing and maintenance costs are lowered, and the service life and reliability of the lock are improved. The lock tongue assembly moves within the upper sliding groove and is controlled by the unlocking button within the key slot. The simplified lock operation steps make it easier for parents and caregivers to learn and master, reduce the unlocking time in case of emergency, and improve the efficiency of emergency handling.

[0010] As a preferred solution of the utility model, a guiding slope is provided on at least one side of the locking tongue assembly, and the bottom end of the extrusion piece extends and abuts against the guiding slope. The tight cooperation between the extrusion piece and the guiding slope and the first reset piece on the locking tongue assembly reduces the risk of small parts falling off, and reduces the possibility of children swallowing or getting injured. When operating, the user only needs to simply push the unlocking button to complete unlocking and locking, which simplifies the use steps and improves the convenience of operation.

[0011] As a further solution of the utility model, the lock tongue assembly includes an upper slider that can move back and forth left and right along the lateral upper slide groove, the guide slopes are respectively arranged on the front and rear outer walls of the upper slider, the extrusion members are respectively arranged at intervals at the bottom of the unlocking member, and the bottom ends are respectively extended downward to abut against the corresponding guide slopes, a collapse hole with an opening on one side facing the lock tongue hole is provided in the upper slider, an upper lock tongue that can move left and right in the collapse hole is provided in the collapse hole, a second reset member is provided between the tail end of the upper lock tongue and the tail end of the collapse hole, and the head end of the upper lock tongue is inserted into the lock hole through the opening of the collapse hole. The design structure of the upper lock tongue plugged into the upper slider is relatively simple, which not only reduces the manufacturing cost, but also facilitates the subsequent maintenance and repair. The design of the upper lock tongue being retractably inserted into the collapse hole ensures that the lock tongue can be firmly inserted into the lock hole, realizes a reliable locking function, prevents the door bar from accidentally opening when subjected to external force, and further improves safety.

[0012] As a preferred solution of the utility model, an upper groove is provided on the top of the shrinkage hole, and an upper buckle is provided on the top of the upper lock tongue to prevent the upper lock tongue from completely detaching from the shrinkage hole, thereby increasing the safety of the lock and the door fence structure and ensuring that good performance and safety can be maintained after long-term use.

[0013] As a preferred solution of the utility model, a third resetting member is provided between the top of the upper slider and the bottom of the unlocking button, an anti-slip groove is provided at one end of the key groove, and an anti-slip buckle which can be movably inserted into the anti-slip groove is provided at the end of the unlocking button away from its hinge, thereby reducing the risk of the unlocking button falling off during normal use and resetting, improving the safety of the lock and door fence structure, and ensuring that good performance and safety can be maintained after long-term use.

[0014] As a preferred solution of the utility model, an extrusion inclined surface which can cooperate with the guide inclined surface is provided at the bottom end of the extrusion piece.

[0015] As a preferred embodiment of the present utility model, an upper rotating shaft is provided at the corner point of the upper edge of the door leaf portion away from the upper lock. An upper shaft seat capable of rotatably plugging with the upper rotating shaft is provided at the upper part of the adjacent door frame. A first annular inclined surface facing upward is provided around the axis on the upper shaft seat. A second annular inclined surface facing downward and capable of cooperating with the first annular inclined surface is provided around the axis on the upper rotating shaft. The positioning structure includes a positioning bump provided at the highest point of the first annular inclined surface. Positioning grooves capable of accommodating the positioning bump to snap in are respectively provided on the left and right sides at the lowest point of the second annular inclined surface. This design not only provides the stability when the door leaf portion is opened to 90 degrees, but also facilitates the fixing and use of the door bar, improving the convenience and safety of use.

[0016] As a preferred embodiment of the present utility model, the lower lock includes a lower lock case horizontally provided at the corner point of the non-hinged side of the lower edge of the door leaf portion. A horizontal lower sliding groove is provided inside the lower lock case. A lower lock tongue hole communicating with the lower sliding groove is penetrated on one side of the lower lock case facing the lower part of the adjacent column. A lower lock tongue capable of moving back and forth horizontally in the lower sliding groove is movably accommodated in the lower lock tongue hole. A lower lock hole with a through top is provided at the lower part of the column adjacent to the lower lock case. The head end of the lower lock tongue can be plugged into the lower lock hole after extending out of the lower lock tongue hole. A fourth resetting member for keeping the head end of the lower lock tongue extending out of the lower lock tongue hole is provided at the tail end of the lower lock tongue in the lower sliding groove. A lower clamping groove is provided at the bottom of the lower sliding groove. A lower clamping buckle capable of being clamped into the lower clamping groove to prevent the lower lock tongue from completely disengaging from the lower sliding groove is provided on the bottom surface of the lower lock tongue. The simplified structure of the lower lock reduces the manufacturing cost and maintenance difficulty, and at the same time ensures the simplicity and reliability of the lock operation.

[0017] As a preferred embodiment of the present utility model, the top of the lower lock hole is in a through shape, the outer wall of the lower lock hole facing the lower lock is in an inclined shape with a wider bottom and a narrower top, and the head end of the lower lock tongue and the head end of the lower lock case are in inclined surfaces capable of cooperating with the outer side surface of the lower lock hole.

[0018] In summary, the beneficial effects of the present utility model compared with the prior art are as follows: By simplifying the structural design, especially the "U"-shaped frame and the hinged door leaf part, the overall structure of the present utility model is simpler, reducing the number of complex mechanical components, lowering the manufacturing and maintenance costs, and improving the durability and reliability of the product. The upper lock is composed of an upper lock shell, an upper chute, a lock tongue assembly, an unlocking button and related reset parts, simplifying the operation steps of the lock, making it easier for parents and caregivers to learn and master, and improving the emergency handling efficiency. Through the close cooperation of the extrusion part, the corresponding guiding inclined plane and the reset part of the lock tongue assembly, the risk of small parts falling off is reduced, enhancing the overall safety. The positioning structure between the upper rotating shaft at the upper edge of the door leaf part and the upper part of the adjacent frame provides the stability when the door leaf part is opened to 90 degrees, facilitating the fixing and use of the railing. The simplification of the lower lock structure further reduces the manufacturing cost and maintenance difficulty, while ensuring the simplicity and reliability of the lock operation. Through these improvements, the simple railing not only provides higher safety and convenience, but also improves the usage efficiency, reduces the cost, and provides a safer and more reliable child protection product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional view of the closed state of the door leaf part and the frame in the present utility model.

[0020] Figure 2 It is one of the three-dimensional views of the opened state of the door leaf part and the frame in the present utility model, and an enlarged view of a partial area in the figure.

[0021] Figure 3 It is the second three-dimensional view of the opened state of the door leaf part and the frame in the present utility model, and an enlarged view of a partial area in the figure.

[0022] Figure 4 For Figure 3 an enlarged view of the cross-section of the lower lock at position A in

[0023] Figure 5 It is one of the cross-sectional views of the upper lock in the present utility model.

[0024] Figure 6 It is the second cross-sectional view of the upper lock in the present utility model.

[0025] Figure 7 It is the third cross-sectional view of the upper lock in the present utility model.

[0026] Figure 8 It is the fourth cross-sectional view of the upper lock in the present utility model.

[0027] Description of the reference numerals: 1, border; 2, door leaf part; 3, upper lock; 4, lower lock; 5, positioning structure; 11, column; 12, bottom beam; 13, upper lock fastener; 14, lock hole; 21, upper rotating shaft; 22, upper shaft seat; 23, first annular inclined surface; 24, second annular inclined surface; 30, upper chute; 31, upper lock housing; 32, lock tongue hole; 33, lock tongue assembly; 34, key slot; 35, unlocking button; 36, pressing part; 37, first reset part; 38, guiding inclined surface; 39, third reset part; 41, lower lock housing; 42, lower chute; 43, lower lock tongue hole; 44, lower lock tongue; 45, lower lock hole; 46, fourth reset part; 47, lower lock fastener; 51, positioning bump; 52, positioning groove; 331, upper slider; 332, collapse hole; 333, upper lock tongue; 334, second reset part; 335, upper card slot; 336, upper buckle; 341, anti - detachment groove; 351, anti - detachment buckle; 361, pressing inclined surface; 424, lower card slot; 441, lower buckle. Detailed implementation manners

[0028] The following specific implementation content provides multiple different embodiments or examples for implementing the present utility model. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures being discussed.

[0029] Furthermore, spatial - related terms may be used, such as "below...", "lower side", "from the inside out", "above", "upper side" and similar terms. These relational terms are for facilitating the description of the relationship between some elements or features in the drawings and other elements or features. These spatial relationship terms include different orientations of the device during use or operation and the orientations described in the drawings. The device may be rotated 90 degrees or to other orientations, and the spatial - related adjectives used may be interpreted in the same way accordingly. Therefore, it should not be construed as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] The following further describes the present utility model in conjunction with the accompanying drawing illustration and specific implementation manners: As Figures 1 to 8A simple door barrier shown in the figure includes a "U"-shaped frame 1 composed of two left and right spaced uprights 11 and a bottom beam 12 connected to the bottoms of the two uprights 11. A door leaf part 2 that can be opened or closed forward and backward is hinged within the frame 1. An upper lock 3 is provided between the corner point on the non-hinged side of the upper edge of the door leaf part 2 and the upper part of the upright 11 on one side of the adjacent frame 1. A lower lock 4 is provided between the corner point on the non-hinged side of the lower edge of the door leaf part 2 and the lower part of the upright 11 on one side of the adjacent frame 1. A positioning structure 5 that can lock the open state of the door leaf part 2 when the door leaf part 2 is opened relative to the frame 1 to 90 degrees is provided at the hinge joint between the corner point on the upper edge of the door leaf part 2 far from the upper lock 3 and the upper part of the upright 11 on one side of the adjacent frame 1.

[0031] Among them, as Figures 1 to 3 and Figures 5 to 8As shown in the figure, the upper lock 3 includes an upper lock housing 31 provided at the non-hinged side corner point of the upper edge of the door leaf part 2. There is a horizontally arranged upper sliding groove 30 inside the upper lock housing 31. A lock tongue hole 32 communicating with the horizontal upper sliding groove 30 penetrates through one side of the upper lock housing 31 facing the adjacent column 11. An upper lock fastener 13 is provided on the column 11 adjacent to the lock tongue hole 32. An inwardly concave lock hole 14 is provided on the side of the upper lock fastener 13 facing the upper lock housing 31. A lock tongue assembly 33 whose one end can extend out of the lock tongue hole 32 and insert into the lock hole 14 is movably arranged in the upper sliding groove 30. A key slot 34 communicating with the horizontal upper sliding groove 30 penetrates through the top of the upper lock housing 31. An unlocking button 35 is provided in the key slot 34. One end of the unlocking button 35 is hinged in the key slot 34. A third reset member 39 is provided at the bottom of the unlocking button 35. In this embodiment, the third reset member 39 is a spring, and the bottom end of the third reset member 39 abuts against the bottom surface of the key slot 34. An anti-disengagement groove 341 is provided at one end of the key slot 34. An anti-disengagement buckle 351 that can be movably inserted into the anti-disengagement groove 341 is provided at the end of the unlocking button 35 away from its hinge. A pressing member 36 extending downward into the horizontal upper sliding groove 30 is provided at the bottom of the unlocking button 35. A first reset member 37 that can retreat and then reset again when the lock tongue assembly 33 is pressed by the pressing member 36 is provided on the pressing member 36. In this embodiment, the first reset member 37 also uses a spring as an example. Specifically: The lock tongue assembly 33 includes an upper slider 331 that can move back and forth left and right in the horizontal upper sliding groove 30. Guide inclined surfaces 38 are respectively provided on the left and right sides of the upper slider 331. The pressing members 36 are respectively arranged at intervals at the bottom of the unlocking button 35. The bottom ends of the respective pressing members 36 are respectively provided with pressing inclined surfaces 361 that can cooperate with the guide inclined surfaces 38 and abut against the corresponding guide inclined surfaces 38. When one end of the unlocking button 35 is pressed downward, the pressing members 36 synchronously turn downward with the hinge axis of the unlocking button 35 as the center. At this time, the pressing inclined surface 361 abuts against the corresponding guide inclined surface 38, and then pushes the upper slider 331 to slide in the direction opposite to the lock tongue hole 32 to unlock the locked state between the door leaf part 2 and the frame 1. A collapsible hole 332 with an opening on the side facing the lock tongue hole 32 is provided in the upper slider 331. An upper lock tongue 333 that can move left and right in the collapsible hole 332 is provided in the collapsible hole 332. A second reset member 334 is provided between the tail end of the upper lock tongue 333 and the tail end of the collapsible hole 332. In this embodiment, the second reset member 334 uses a spring as an example. The head end of the upper lock tongue 333 passes through the opening of the collapsible hole 332 and inserts into the lock hole 14. The pressing member 36 can press the upper slider 331 to retreat along the horizontal upper sliding groove 30 when the unlocking button 35 turns downward, so that the upper lock tongue 333 withdraws from the lock hole 14.It should be noted that in order to prevent the upper locking tongue 333 from completely disengaging from the opening of the collapse hole 332 under the pressing of the second reset member 334, an upper card slot 335 is provided at the top of the collapse hole 332, and an upper buckle 336 capable of preventing the upper locking tongue 333 from completely disengaging from the collapse hole 332 is provided at the top of the upper locking tongue 333.

[0032] Secondly, an upper rotating shaft 21 is provided at the corner of the upper edge of the door leaf part 2 far from the upper lock 3. An upper shaft seat 22 capable of rotatably inserting with the upper rotating shaft 21 is provided at the upper part of the adjacent frame 1. A first annular inclined surface 23 facing upward is provided around the axis on the upper shaft seat 22, and a second annular inclined surface 24 facing downward and capable of cooperating with the first annular inclined surface 23 is provided around the axis on the upper rotating shaft 21. The lower lock 4 includes a lower lock shell 41 horizontally arranged at the non-hinged side corner of the lower edge of the door leaf part 2. A lower sliding slot 42 is horizontally arranged inside the lower lock shell 41. A lower lock tongue hole 43 communicating with the lower sliding slot 42 penetrates through one side of the lower lock shell 41 facing the lower part of the adjacent column 11. A lower lock tongue 44 capable of moving back and forth left and right in the lower sliding slot 42 is movably accommodated in the lower lock tongue hole 43. A lower lock fastener 47 is provided at the lower part of the column 11 adjacent to the lower lock shell 41. A lower lock hole 45 with its top penetrating through the top surface of the lower lock fastener 47 is provided inside the lower lock fastener 47. The head end of the lower lock tongue 44 can be inserted into the lower lock hole 45 after protruding from the lower lock tongue hole 43. A fourth reset member 46 capable of keeping the head end of the lower lock tongue 44 protruding outside the lower lock tongue hole 43 is provided at the tail end of the lower lock tongue 44 in the lower sliding slot 42. In this embodiment, the fourth reset member 46 is exemplified by a spring. A lower card slot 421 is provided at the bottom of the lower sliding slot 42, and a lower buckle 441 capable of being stuck into the lower card slot 421 to prevent the lower lock tongue 44 from completely disengaging from the lower sliding slot 42 is provided on the bottom surface of the lower lock tongue 44. It should be emphasized that when the upper lock 3 is unlocked by pressing the unlocking button 35, during the process of pushing or pulling the door leaf part 2 to open, the first annular inclined surface 23 and the second annular inclined surface 24 are mutually pressed, and the entire door leaf part 2 will be pushed and lifted upward. At this time, since the top of the lower lock hole 45 is in a through state, the head end of the lower lock tongue 44 will move upward out of the lower lock hole 45 as the door leaf part 2 is opened. In order to prevent the head end of the lower lock tongue 44 from being blocked by the side walls of the lower lock fastener 47 in front of and behind the lower lock hole 45 when moving out of the lower lock hole 45, the outer wall of the lower lock fastener 47 where the lower lock hole 45 is located and facing the lower lock 4 is inclined with a wider bottom and a narrower top. The head end of the lower lock tongue 44 and the head end of the lower lock shell 41 are in the form of inclined surfaces capable of cooperating with the outer side surface of the lower lock fastener 47. When the head end of the lower lock tongue 44 rises to the top of the lower lock hole 45 along with the entire door leaf part 2, due to the narrowing of the top end of the lower lock fastener 47 and in cooperation with the inclined surface of the head end of the lower lock tongue 44, the lower lock tongue 44 can smoothly move out of the lower lock hole 45.

[0033] In addition, as Figure 3As shown in the figure, the positioning structure 5 includes a positioning bump 51 provided at the highest point of the first annular inclined surface 23. Positioning grooves 52 capable of accommodating the positioning bump 51 are respectively provided on the left and right sides at the lowest point of the second annular inclined surface 24. When the door leaf part 2 is opened to 90 degrees, the positioning bump 51 is snapped into the positioning groove 52. In this way, the door leaf part 2 will not automatically close again without external force pushing it. However, when the door leaf part 2 is not opened to 90 degrees, the second annular inclined surface 24 will be squeezed by the self-weight of the door leaf part 2 and the first annular inclined surface 23, realizing the automatic closing of the door leaf part 2, preventing the situation that after the door leaf part 2 is pushed open and forgotten to be closed, allowing children or pets to pass through the door barrier isolation area, resulting in the failure of isolation.

[0034] 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. What is described in the above embodiments and the specification only illustrates the principle of 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 simple door fence, comprising a U-shaped frame (1), a door leaf (2) being hingedly connected inside the frame (1) and capable of opening or closing forward and backward, characterized in that: An upper lock (3) is provided between a corner point on the non-hinged side of the upper edge of the door leaf portion (2) and the upper portion of the frame (1); a lower lock (4) is provided between a corner point on the non-hinged side of the lower edge of the door leaf portion (2) and the lower portion of the frame (1); and a locking device capable of locking the door leaf portion (2) in an open state when the door leaf portion (2) is opened to 90 degrees relative to the frame (1) is provided at a hinged position between a corner point on the upper edge of the door leaf portion (2) away from the upper lock (3) and the upper portion of the adjacent frame (1). The door frame (1) is composed of two left and right columns (11) arranged at intervals and a bottom side beam (12) connected to the bottom of the two columns (11); the upper lock (3) includes an upper lock shell (31) arranged at a non-hinged side corner point of the upper edge of the door leaf (2); the upper lock shell (31) has an upper slide groove (30) arranged transversely therein; and a side of the upper lock shell (31) facing the adjacent column (11) is penetrated by a side of the upper lock shell (31) that is connected to the transverse upper slide groove (30). 0), a lock bolt hole (32) connected to the lock bolt hole (32), a lock hole (14) is provided on the column (11) adjacent to the lock bolt hole (32), a lock bolt assembly (33) is movably provided in the upper slide groove (30), one end of which can extend from the lock bolt hole (32) and be inserted into the lock hole (14), a key groove (34) connected to the horizontal upper slide groove (30) is penetrated through the top of the upper lock shell (31), and an unlocking button (35) is provided in the key groove (34), and the unlocking button (35) is unlocked. One end of the push piece (35) is hinged in the key slot (34), and a pressing piece (36) is provided at the bottom of the unlocking push piece (35) and extends downward into the upper horizontal slide slot (30) so as to press the locking tongue assembly (33) to move backward along the upper horizontal slide slot (30) when the unlocking push piece (35) is turned downward. A first restoring piece (37) is provided on the pressing piece (36) and can be reset again after the locking tongue assembly (33) is pressed backward by the pressing piece (36).

2. A simple gate according to claim 1, characterized in that: A guide slope (38) is provided on at least one side of the locking tongue assembly (33), and the bottom end of the extrusion member (36) extends and abuts against the guide slope (38).

3. A simple gate fence according to claim 2, characterized in that: The locking tongue assembly (33) comprises an upper slider (331) which can move back and forth left and right along the transverse upper slide groove (30); the guiding inclined surfaces (38) are respectively arranged on the outer walls of the front and rear sides of the upper slider (331); the extruding members (36) are respectively arranged at intervals at the bottom of the unlocking member (35), and the bottom ends thereof extend downward and abut against the corresponding guiding inclined surfaces (38); a shrinkage hole (332) which is open on one side facing the locking tongue hole (32) is provided in the upper slider (331); an upper locking tongue (333) which can move left and right in the shrinkage hole (332) is provided in the shrinkage hole (332); a second reset member (334) is provided between the rear end of the upper locking tongue (333) and the rear end of the shrinkage hole (332); and the head end of the upper locking tongue (333) passes through the opening of the shrinkage hole (332) and is inserted into the locking hole (14).

4. A simple gate fence according to claim 3, characterized in that: An upper clamping groove (335) is provided at the top of the shrinkage hole (332), and an upper clamping buckle (336) capable of preventing the upper lock tongue (333) from completely separating from the shrinkage hole (332) is provided at the top of the upper lock tongue (333).

5. A simple gate fence according to claim 3, characterized in that: A third reset member (39) is provided between the bottom of the unlocking push member (35) and the bottom surface of the key slot (34), an anti-slip groove (341) is provided at one end of the key slot (34), and an anti-slip buckle (351) that can be movably inserted into the anti-slip groove (341) is provided at one end of the unlocking push member (35) away from its hinge.

6. A simple gate according to any one of claims 3 to 5, characterized in that: An extrusion inclined surface (361) capable of matching with the guide inclined surface (38) is provided at the bottom end of the extrusion piece (36).

7. A simple gate according to claim 6, characterized in that: An upper rotating shaft (21) is provided at a corner point of the upper edge of the door leaf portion (2) away from the upper lock (3); an upper shaft seat (22) capable of being rotatably plugged with the upper rotating shaft (21) is provided at the upper part of the adjacent frame (1); a first annular inclined surface (23) facing upward is provided around the axis on the upper shaft seat (22); a second annular inclined surface (24) facing downward and capable of matching with the first annular inclined surface (23) is provided around the axis on the upper rotating shaft (21); the positioning structure (5) comprises a positioning protrusion (51) provided at the highest point of the first annular inclined surface (23); and positioning grooves (52) capable of accommodating the positioning protrusion (51) to be inserted are respectively provided on the left and right sides of the lowest point of the second annular inclined surface (24).

8. A simple gate fence according to claim 7, characterized in that: The lower lock (4) comprises a lower lock shell (41) arranged transversely on a non-hinged side corner point of the lower edge of the door leaf portion (2), the lower lock shell (41) having a transversely arranged lower slide groove (42), a lower lock tongue hole (43) connected to the lower slide groove (42) penetrating through a side of the lower lock shell (41) facing the lower portion of an adjacent column (11), a lower lock tongue (44) being movablely accommodated in the lower lock tongue hole (43) and being able to move back and forth left and right in the lower slide groove (42), a lower lock tongue having a through top is provided at the lower portion of the column (11) adjacent to the lower lock shell (41). The lower locking tongue (44) is provided with a lower locking hole (45), the head end of the lower locking tongue (44) being inserted into the lower locking hole (45) after protruding from the lower locking tongue hole (43), a fourth restoring member (46) being provided at the tail end of the lower locking tongue (44) on the lower sliding groove (42) and being capable of keeping the head end of the lower locking tongue (44) protruding out of the lower locking tongue hole (43), a lower clamping groove (421) being provided at the bottom of the lower sliding groove (42), and a lower buckle (441) being capable of being clamped into the lower clamping groove (421) and preventing the lower locking tongue (44) from being completely separated from the lower sliding groove (42) being provided on the bottom surface of the lower locking tongue (44).

9. A simple gate according to claim 8, characterized in that: The outer wall of the lower lock hole (45) facing the lower lock device (4) is inclined and wider at the bottom and narrower at the top. The head ends of the lower lock tongue (44) and the lower lock shell (41) are inclined surfaces that can cooperate with the outer side surface of the lower lock hole (45).

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