A children's playpen with a single-sided door

Abstract

This utility model relates to a children's playpen with a single-sided opening door, including a fence panel, a door frame mounted on the fence panel, and a door panel mounted inside the door frame. The door panel has an internal mounting cavity containing a transmission component. A rotating component is mounted at the front end of the door panel. The rotating component and the transmission component are connected by a connecting rod. The rotating component drives the transmission component to rotate via the connecting rod. Both sides of the door panel have latch components for connecting the door panel and the door frame. This utility model provides latches on both sides of the door panel. By rotating the handle, as the outer turntable rotates, the two latches on one side move away from each other according to the shape of the outer turntable, causing the latches to enter the pivot groove, achieving a rotational connection between the door panel and the door frame. The two latches on the other side retract and disengage from the pivot groove, allowing the door to open. Users can adjust the opening direction of the door panel according to placement needs, achieving left or right opening.

Description

Technical Field

[0001] This utility model relates to the field of children's playpen technology, specifically a children's playpen with a single-sided door. Background Technology

[0002] Children's playpens, also known as play fences, child safety fences, or safety fences, are generally enclosed by four fences to form a rectangular, independent space. This provides children with an independent play area, making it easier for adults to supervise them. Conventional playpens often use an assembly structure, consisting of multiple panel components connected end-to-end. The overall structure is relatively simple, and people can assemble it themselves according to their needs. The opening mechanism is also convenient; for example, a latch structure allows the door panel to rotate around the latch to open. Existing single-sided opening children's playpens restrict the opening direction (e.g., left or right) due to the single-sided opening panel, making installation and placement somewhat limited and unable to change the opening direction according to needs. Based on this, we propose a single-sided opening children's playpen to solve the above problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a children's playpen with a single-sided opening door, enabling flexible installation and disassembly, and allowing for changes in the opening direction. This solves the problem that existing children's playpen designs with a single-sided opening door have limited opening directions, such as opening to the left or right, which restricts installation and placement and makes it impossible to change the opening direction according to needs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a children's play fence with a single-sided opening door, comprising a fence panel, a door frame installed on the fence panel, and a door panel installed inside the door frame. The door panel has an installation cavity inside, in which a transmission component is installed. A rotating component is installed at the front end of the door panel. The rotating component and the transmission component are connected by a connecting rod. The rotating component drives the transmission component to rotate through the connecting rod. Both sides inside the door panel are provided with pin components for connecting the door panel and the door frame. A locking component is provided at the lower end inside the door panel for locking and limiting the door panel and the door frame.

[0005] Furthermore, pivot grooves are provided at both ends of the inner side of the door frame, and a locking groove is provided at the bottom of the inner side of the door frame.

[0006] Furthermore, the transmission assembly includes an outer turntable installed in the mounting cavity, a connecting hole opened on the surface of the outer turntable, an inner turntable slidably installed in the connecting hole, and positioning rings fixedly installed on the front and rear sides of the inner wall of the mounting cavity. The two positioning rings are slidably connected to the front and rear ends of the outer turntable, and the bottom of the positioning rings is provided with a notch. The rear end of the connecting rod is fixedly connected to the inner turntable.

[0007] Furthermore, an outer sleeve is fixedly installed at the rear end of the inner turntable, and a positioning rod is installed at the rear end of the inner wall of the mounting cavity. The outer sleeve and the positioning rod are sleeved together. When the inner turntable slides into the connecting hole, the rotation of the inner turntable can synchronously drive the outer turntable to rotate.

[0008] Furthermore, the transmission assembly includes a handle fixedly installed at the front end of the connecting rod. The connecting rod and the door panel are rotatably connected. When the handle is rotated, the connecting rod synchronously drives the inner turntable to rotate. An elastic plate is fixedly installed on the front end face of the door panel on the side of the connecting rod. An annular groove is opened on the surface of the connecting rod. The movable end of the elastic plate is engaged with the annular groove. When the elastic plate is engaged into the annular groove, it limits the connection rod.

[0009] Furthermore, the latch assembly includes a movable cavity formed in the door panel, an end seat slidably installed in the movable cavity, a latch rod fixedly connected to the end seat, and through holes formed on the upper and lower sides of the latch rod. The latch rod and the through holes are slidably connected, and the latch ends of both latch rods extend to the outside of the through holes and are connected to the latch groove. A connecting spring is fitted on the outside of the latch rod. One end of the connecting spring is fixedly connected to the end seat, and the other end of the connecting spring is fixedly connected to the inner wall of the movable cavity. A pushing component is provided between the movable cavity and the mounting cavity.

[0010] Furthermore, the pushing component includes a pushing channel formed between the movable cavity and the mounting cavity, a transmission rod slidably installed in the pushing channel, and a trapezoidal block fixedly installed at one end of the transmission rod. The other end of the transmission rod is fitted to the outer wall of the outer turntable. A second spring is sleeved on the outside of the transmission rod. One end of the second spring is fixedly connected to the inner wall of the pushing channel, and the other end of the second spring is fixedly connected to the trapezoidal block. When the outer turntable rotates, it pushes the transmission rod to move outward, causing the trapezoidal block to enter the movable cavity. When the trapezoidal block moves, the two end seats move along the inclined surface of the trapezoidal block.

[0011] Furthermore, the locking assembly includes a sliding channel formed at the bottom of the door panel and a locking pin slidably installed in the sliding channel. The top of the sliding channel is connected to the mounting cavity, and a protrusion is fixedly installed on the surface of the locking pin. Return springs are fixedly connected to both sides of the protrusion. One end of the return spring is fixedly connected to the protrusion, and the other end of the return spring is fixedly connected to the inner wall of the sliding channel. The upper end of the locking pin extends into the mounting cavity and fits against the outer wall of the inner turntable. The lower end of the locking pin is connected to the locking groove pin. When the inner turntable rotates, it pushes the locking pin downward to move into the locking groove.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This single-sided opening children's playpen has pins on both sides of the door panel. When the user rotates the handle, the two pins on one side move away from each other according to the shape of the outer turntable, so that the pins enter the rotating pin groove, realizing the rotational connection between the door panel and the door frame. The two pins on the other side retract and disengage from the rotating pin groove, which can open the door. The user can adjust the opening direction of the door panel according to the placement needs, so that the door panel opens to the left or right. 2. This single-sided opening children's playpen allows for adjustment of the handle position. When the handle rotates, it drives the inner turntable to rotate, thereby pushing the locking pin to move. When the locking pin enters the locking groove, it locks the door panel, facilitating locking when the door panel is closed, increasing the functionality of the handle, and simultaneously adapting to locking when the door panel opens to the left and right. 3. In this single-sided opening children's playpen, the elastic plate is attached to the outside of the connecting rod and engages with the annular groove. This not only makes it easy to adjust the position of the handle, but also limits the connecting rod with the elastic plate, increasing the difficulty of turning the handle and preventing children from accidentally operating it. Attached Figure Description

[0013] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 The diagram shown is a schematic representation of the door panel structure of this utility model. Figure 3 The diagram shown is a schematic of the mounting cavity structure of this utility model. Figure 1 ; Figure 4 The diagram shown is a schematic representation of the door frame structure of this utility model. Figure 5 The diagram shown is a schematic of the mounting cavity structure of this utility model. Figure 2 ; Figure 6 The diagram shown is a schematic representation of the connecting rod structure of this utility model. Figure 7 The diagram shown is a schematic of the inner turntable structure of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Fence panel; 2. Door frame; 201. Rotary pin groove; 202. Locking groove; 3. Door panel; 301. Movable cavity; 302. End seat; 303. Pin rod; 304. Connecting spring; 305. Pushing channel; 306. Transmission rod; 307. Trapezoidal block; 308. Spring II; 4. Mounting cavity; 401. Sliding channel; 402. Locking pin rod; 403. Protruding seat; 404. Return spring; 5. Connecting rod; 501. Outer turntable; 502. Connecting hole; 503. Inner turntable; 504. Positioning ring; 505. Rotating handle; 506. Elastic sheet; 507. Annular groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-7 This embodiment of a children's playpen with a single-sided opening door includes a fence panel 1, a door frame 2 installed on the fence panel 1, and a door panel 3 installed inside the door frame 2. The door panel 3 has an installation cavity 4 inside, and a transmission component is provided in the installation cavity 4. A rotating component is installed at the front end of the door panel 3. The rotating component and the transmission component are connected by a connecting rod 5. The rotating component drives the transmission component to rotate through the connecting rod 5. Both sides inside the door panel 3 are provided with pin components for connecting the door panel 3 and the door frame 2. A locking component is provided at the lower end inside the door panel 3 for locking and limiting the door panel 3 and the door frame 2.

[0017] In this embodiment, both ends of the inner side of the door frame 2 are provided with pivot grooves 201, and the bottom of the inner side of the door frame 2 is provided with a locking groove 202.

[0018] It should be noted that the pivot grooves 201 are symmetrically distributed on the upper and lower ends of the inner side of the door frame 2, with a groove depth of 8-10mm. They do not require interference fit with the pin rod 303, which facilitates the rotation of the door panel 3. The small amount of shaking does not affect the stability of the game fence. The locking groove 202 is used for locking connection to fix the door panel 3.

[0019] Please see Figure 3 , Figure 5 and Figure 6 In this embodiment, the transmission assembly includes an outer turntable 501 installed in the mounting cavity 4, a connecting hole 502 opened on the surface of the outer turntable 501, an inner turntable 503 slidably installed in the connecting hole 502, and positioning rings 504 fixedly installed on the front and rear sides of the inner wall of the mounting cavity 4. The two positioning rings 504 are slidably connected to the front and rear ends of the outer turntable 501 respectively, and the bottom of the positioning rings 504 is provided with a notch. The rear end of the connecting rod 5 is fixedly connected to the inner turntable 503. An outer sleeve is fixedly installed on the rear end of the inner turntable 503, and a positioning rod is installed on the rear end of the inner wall of the mounting cavity 4. The outer sleeve and the positioning rod are sleeved together. When the inner turntable 503 slides into the connecting hole 502, the rotation of the inner turntable 503 can synchronously drive the outer turntable 501 to rotate.

[0020] It should be noted that the outer turntable 501 has a pentagonal spline structure, while the inner turntable 503 and the outer turntable 501 are coaxially designed. The two sides of the outer turntable 501 are movably mounted in the mounting cavity 4 through the positioning rings 504, so that the outer turntable 501 can rotate but cannot move back and forth. The coaxial structure of the inner turntable 503 and the outer turntable 501 allows the two turntables to connect when the inner turntable 503 enters the connecting hole 502, and the rotation of the inner turntable 503 drives the outer turntable 501 to rotate.

[0021] Please see Figure 2 , Figure 5 , Figure 6 , Figure 7 In this embodiment, the transmission assembly includes a handle 505 fixedly installed at the front end of the connecting rod 5. The connecting rod 5 and the door panel 3 are rotatably connected. When the handle 505 is rotated, the connecting rod 5 synchronously drives the inner turntable 503 to rotate. An elastic piece 506 is fixedly installed on the front end face of the door panel 3 on the side of the connecting rod 5. An annular groove 507 is opened on the surface of the connecting rod 5. The movable end of the elastic piece 506 is engaged with the annular groove 507. When the elastic piece 506 is engaged into the annular groove 507, it limits the connection rod 5.

[0022] It should be noted that the elastic sheet 506 is made of 65Mn spring steel, and its movable end has a bending angle of 30°. There are two annular slots 507, one at the front and one at the back, and the positions of the two annular slots 507 correspond to the movable distance of the inner turntable 503, so that the handle 505 can be moved back and forth. When the elastic sheet 506 enters the outer annular slot 507, the inner turntable 503 enters the connecting hole 502. When the elastic sheet 506 enters the inner annular slot 507, the inner turntable 503 disengages from the connecting hole 502. At the same time, the elastic sheet 506 can provide a certain limiting force when it is engaged in the slot to prevent the door panel 3 from being accidentally opened by children.

[0023] Please see Figure 2 , Figure 5 , Figure 6In this embodiment, the latch assembly includes a movable cavity 301 formed in the door panel 3, an end seat 302 slidably mounted in the movable cavity 301, a latch rod 303 fixedly connected to the end seat 302, and through holes formed on the upper and lower sides of the latch rod 303. The latch rod 303 and the through holes are slidably connected, and the latch ends of both latch rods 303 extend to the outside of the through holes and are latched to the pivot groove 201. A connecting spring 304 is fitted on the outside of the latch rod 303. One end of the connecting spring 304 is fixedly connected to the end seat 302, and the other end of the connecting spring 304 is fixedly connected to the inner wall of the movable cavity 301. A pushing assembly is provided between the movable cavity 301 and the mounting cavity 4. The pushing assembly includes through holes formed in the door panel 301. The device includes a push channel 305 between the movable cavity 301 and the mounting cavity 4, a transmission rod 306 slidably installed in the push channel 305, and a trapezoidal block 307 fixedly installed at one end of the transmission rod 306. The other end of the transmission rod 306 is fitted to the outer wall of the outer turntable 501. A second spring 308 is sleeved on the outside of the transmission rod 306. One end of the second spring 308 is fixedly connected to the inner wall of the push channel 305, and the other end of the second spring 308 is fixedly connected to the trapezoidal block 307. When the outer turntable 501 rotates, it pushes the transmission rod 306 to move outward, causing the trapezoidal block 307 to enter the movable cavity 301. When the trapezoidal block 307 moves, the two end seats 302 move along the inclined surface of the trapezoidal block 307.

[0024] It should be noted that the connecting spring 304 provides the reset force for the pin 303, ensuring that the pin 303 remains in a retracted state when there is no external force. The inclined angle of the trapezoidal block 307 is 45°, and the contact part with the end seat 302 is inlaid with a polytetrafluoroethylene wear-resistant sheet, which facilitates pushing the pins 303 on both sides to move outward, so that the pins 303 enter the rotating pin groove 201, forming a rotating connection between the door panel 3 and the door frame 2. The adjustment of the pins 303 on both sides corresponds to opening to the left and opening to the right, respectively.

[0025] Please see Figure 3 and Figure 5 In this embodiment, the locking assembly includes a sliding channel 401 formed at the bottom of the door panel 3 and a locking pin 402 slidably installed in the sliding channel 401. The top of the sliding channel 401 is connected to the mounting cavity 4. A protrusion 403 is fixedly installed on the surface of the locking pin 402. A return spring 404 is fixedly connected to both sides of the protrusion 403. One end of the return spring 404 is fixedly connected to the protrusion 403, and the other end of the return spring 404 is fixedly connected to the inner wall of the sliding channel 401. The upper end of the locking pin 402 extends into the mounting cavity 4 and is attached to the outer wall of the inner turntable 503. The lower end of the locking pin 402 is pin-connected to the locking groove 202. When the inner turntable 503 rotates, it pushes the locking pin 402 downward into the locking groove 202.

[0026] It should be noted that the upper end of the locking pin 402 is attached to the surface of the inner turntable 503 through the bottom notch groove of the positioning ring 504. The return spring 404 adopts a double spring symmetrical arrangement. The lower end of the locking pin 402 has a hemispherical structure. After being inserted into the locking groove 202, the radial gap is ≤0.5mm. The inner turntable 503 has an overall triangular structure. When its protruding end is attached to the end of the locking pin 402, it pushes the locking pin 402 outward into the locking groove 202, thus forming a door closing limit. After rotation, the straight end of the inner turntable 503 is attached to the end of the locking pin 402, and under the elastic force of the return spring 404, the locking pin 402 retracts and disengages from the locking groove 202, at which point the door can be opened.

[0027] Based on another embodiment of the locking component in this example, the locking component can be electromagnetically driven, specifically including a miniature electromagnet fixedly installed inside the door panel 3, a latch connected to the output end of the electromagnet, an electromagnetic lock slot opened at a corresponding position in the door frame 2, and a touch sensor connected in series in the electromagnet circuit. When the door panel 3 is closed, the touch sensor triggers the electromagnet to be energized, and the latch pops out and inserts into the electromagnetic lock slot under the action of electromagnetic force, forming an electrical interlock; when unlocking, the power supply to the electromagnet is cut off through the password button or NFC sensing module on the outside of the door panel 3, and the latch retracts under the action of the return spring 404, realizing contactless unlocking and higher security.

[0028] The working principle of the above embodiments is as follows: When the door is closed, the triangular protrusion of the inner turntable 503 pushes the locking pin 402 into the locking groove 202, while the elastic piece 506 engages with the annular groove 507 to form a limit. When the door is opened, pulling the handle 505 outward causes the elastic piece 506 to disengage from the inner annular groove 507, separating the inner turntable 503 from the outer turntable 501. Rotating the handle 505 causes the inner turntable 503 to rotate, and its straight end contacts the locking pin 402. The return spring 404 pulls the locking pin 402. When disengaging from the locking groove 202 and adjusting the opening direction, push the handle 505 to make the elastic piece 506 engage with the outer annular groove 507, insert the inner turntable 503 into the connecting hole 502 on the outer turntable 501, rotate the handle 505 to drive the outer turntable 501 to rotate, and push the single-sided pin rod 303 into the pin groove 201 through the inclined surface of the trapezoidal block 307, forming a left- or right-opening rotating connection, realizing the single-sided opening function, and the opening direction can be changed according to the placement position.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A children's playpen with a single-sided opening door, comprising a playpen panel (1), a door frame (2) mounted on the playpen panel (1), and a door panel (3) mounted on the inner side of the door frame (2), characterized in that: The door panel (3) has an installation cavity (4) inside, and a transmission component is installed in the installation cavity (4). A rotating component is installed at the front end of the door panel (3). The rotating component and the transmission component are connected by a connecting rod (5). The rotating component drives the transmission component to rotate through the connecting rod (5). Both sides inside the door panel (3) are provided with a pin assembly. The pin assembly is used for the connection between the door panel (3) and the door frame (2). A locking component is provided at the lower end inside the door panel (3). The locking component is used to lock and limit the door panel (3) and the door frame (2).

2. A children's playpen with a single-sided opening door according to claim 1, characterized in that: Both ends of the inner side of the door frame (2) are provided with pivot grooves (201), and the bottom of the inner side of the door frame (2) is provided with locking grooves (202).

3. A children's playpen with a single-sided door as described in claim 2, characterized in that: The transmission assembly includes an outer turntable (501) installed in the mounting cavity (4), a connecting hole (502) opened on the surface of the outer turntable (501), an inner turntable (503) slidably installed in the connecting hole (502), and positioning rings (504) fixedly installed on the front and rear sides of the inner wall of the mounting cavity (4). The two positioning rings (504) are slidably connected to the front and rear ends of the outer turntable (501) respectively, and the bottom of the positioning ring (504) is provided with a notch. The rear end of the connecting rod (5) is fixedly connected to the inner turntable (503).

4. A children's playpen with a single-sided door as described in claim 3, characterized in that: An outer sleeve is fixedly installed at the rear end of the inner turntable (503), and a positioning rod is installed at the rear end of the inner wall of the mounting cavity (4). The outer sleeve and the positioning rod are connected. When the inner turntable (503) slides into the connecting hole (502), the rotation of the inner turntable (503) can synchronously drive the outer turntable (501) to rotate.

5. A children's playpen with a single-sided door as described in claim 4, characterized in that: The transmission assembly includes a handle (505) fixedly installed at the front end of the connecting rod (5). The connecting rod (5) and the door panel (3) are rotatably connected. When the handle (505) is rotated, the connecting rod (5) synchronously drives the inner turntable (503) to rotate. An elastic plate (506) is fixedly installed on the front end face of the door panel (3) on the side of the connecting rod (5). An annular groove (507) is opened on the surface of the connecting rod (5). The movable end of the elastic plate (506) is engaged with the annular groove (507). When the elastic plate (506) is engaged into the annular groove (507), it limits the connecting rod (5).

6. A children's playpen with a single-sided door as described in claim 3, characterized in that: The latch assembly includes a movable cavity (301) opened in the door panel (3), an end seat (302) slidably installed in the movable cavity (301), a latch rod (303) fixedly connected to the end seat (302), and through holes opened on the upper and lower sides of the latch rod (303). The latch rod (303) and the through holes are slidably connected, and the latch ends of the two latch rods (303) extend to the outside of the through holes and are connected to the latch groove (201). A connecting spring (304) is fitted on the outside of the latch rod (303). One end of the connecting spring (304) is fixedly connected to the end seat (302), and the other end of the connecting spring (304) is fixedly connected to the inner wall of the movable cavity (301). A push assembly is provided between the movable cavity (301) and the mounting cavity (4).

7. A children's playpen with a single-sided door as described in claim 6, characterized in that: The pushing assembly includes a pushing channel (305) opened between the movable cavity (301) and the mounting cavity (4), a transmission rod (306) slidably installed in the pushing channel (305), and a trapezoidal block (307) fixedly installed at one end of the transmission rod (306). The other end of the transmission rod (306) is fitted and connected to the outer wall of the outer turntable (501). A second spring (308) is sleeved on the outside of the transmission rod (306). One end of the second spring (308) is fixedly connected to the inner wall of the pushing channel (305), and the other end of the second spring (308) is fixedly connected to the trapezoidal block (307). When the outer turntable (501) rotates, it pushes the transmission rod (306) to move outward, and causes the trapezoidal block (307) to enter the movable cavity (301). When the trapezoidal block (307) moves, the two end seats (302) move along the inclined surface of the trapezoidal block (307).

8. A children's playpen with a single-sided door as described in claim 3, characterized in that: The locking assembly includes a sliding channel (401) at the bottom of the door panel (3) and a locking pin (402) slidably installed in the sliding channel (401). The top of the sliding channel (401) is connected to the mounting cavity (4), and a protrusion (403) is fixedly installed on the surface of the locking pin (402). Both sides of the protrusion (403) are fixedly connected to a return spring (404). One end of the return spring (404) is fixedly connected to the protrusion (403), and the other end of the return spring (404) is fixedly connected to the inner wall of the sliding channel (401). The upper end of the locking pin (402) extends into the mounting cavity (4) and is attached to the outer wall of the inner turntable (503). The lower end of the locking pin (402) is pin-connected to the locking groove (202). When the inner turntable (503) rotates, it pushes the locking pin (402) to move downward into the locking groove (202).

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