A folding tent with a central self-locking structure

Abstract

The present invention discloses a folding tent with a central self-locking structure, comprising a plurality of tent leg tubes, a plurality of side cross units, a plurality of middle cross units and at least one central self-locking mechanism, wherein the central self-locking mechanism is used to cooperate with one end of the middle cross unit for installation, and the central self-locking mechanism comprises a locking rod assembly, a self-locking unit, an upper plate component and a lower plate component, wherein the locking rod assembly is a telescopic rod structure; when the folding tent is in an unfolded state, the self-locking unit and the locking rod assembly are locked, and the distance between the upper plate component and the lower plate component is the smallest; when the folding tent is in a retracted state, the self-locking unit and the locking rod assembly are unlocked, the locking rod assembly is retractable, and the distance between the upper plate component and the lower plate component gradually increases with the retraction. The present invention facilitates product installation, reduces production costs, and facilitates product processing by optimizing the structure of the self-locking unit.

Description

Technical Field

[0001] The invention relates to the technical field of folding tents, in particular to a folding tent with a central self-locking structure. Background Art

[0002] Tents have various structural forms. Tents used for outdoor sunshade can usually be divided into fixed tents and folding tents. Fixed tents are larger in size and are usually suitable for long-term fixed placement, so they are not suitable for carrying outside. Folding tents are also known as advertising tents and awnings. They can be used for outdoor exhibitions and product promotion, celebration parties, exhibitions and sales, tourism and leisure, field operations, food stalls, etc. However, traditional folding tents usually have locks set on the leg rods, which require multiple people to operate to complete folding, storage or unfolding, and the operation is relatively cumbersome.

[0003] For this reason, many folding tents with central unlocking structures have been developed nowadays, such as announcement number CN204024196U, which discloses a tent with a single-point lock, including leg tubes, cross tubes, a central tube, and a slider, wherein the cross tubes are composed of an outer cross tube and an inner cross tube, the leg tubes are located on the outside of the central tube, and the adjacent leg tubes are hingedly connected by an X-shaped outer cross tube, and the leg tubes and the central tube are hingedly connected by an X-shaped inner cross tube; a single-point locking structure is provided in the central tube. The single-point locking structure includes a slider 1, a movable pin connection block, a movable pin 1, a connecting rod, a button block, a center bottom cap 1, and a center top cap 1. A locking hole is provided on the center tube; a button block is provided in the lower end tube of the center tube, and the upper end of the button block is connected to one end of a connecting rod, and the other end of the connecting rod is connected to the movable pin connection block. The movable pin connection block is provided with an inclined groove, and the other end of the connecting rod is embedded in the inclined groove of the movable pin connection block through a movable bolt and connected to the movable pin connection block; the upper end of the movable pin connection block is connected with a movable pin 1; a slider 1 is sleeved on the outer side of the center tube, and a round hole is provided on the slider 1. The movable pin 1 is embedded in the round hole of the slider 1 through the locking hole of the center tube. However, this type of single-point locking structure is relatively complex, and it needs to be integrated in the center tube, resulting in high product processing costs. During long-term use, individual components are prone to wear and tear, resulting in the product being unable to be used normally, affecting performance. Summary of the invention

[0004] In view of the above problems, the present invention aims to provide a folding tent with a central self-locking structure, which has the characteristics of simple structure, convenient processing, low cost and good stability.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A folding tent with a central self-locking structure comprises a plurality of tent leg tubes, a plurality of side cross units, a plurality of middle cross units and at least one central self-locking mechanism, wherein the central self-locking mechanism is used for being installed in cooperation with one end of the middle cross unit, and the central self-locking mechanism comprises a locking rod assembly, a self-locking unit, an upper disk component and a lower disk component, wherein the locking rod assembly is a telescopic rod structure; when the folding tent is in an unfolded state, the self-locking unit and the locking rod assembly are locked, and the distance between the upper disk component and the lower disk component is the smallest; when the folding tent is in a collapsed state, the self-locking unit and the locking rod assembly are unlocked, the locking rod assembly is telescopic, and the distance between the upper disk component and the lower disk component gradually increases with the collapse.

[0007] The locking rod assembly comprises an outer locking rod, a first inner rod and a second inner rod. A locking groove is provided at the lower portion of the outer locking rod. The first inner rod and the second inner rod can be telescopically movable relative to the outer locking rod.

[0008] The upper part of the outer locking rod is fixedly installed with the upper disk member.

[0009] The self-locking unit is used to be installed in cooperation with the lower plate assembly, and the self-locking unit includes a locking plate, a return spring, a transmission pin and a trigger. The trigger is hingedly cooperated with the lower plate assembly, one end of the trigger can movably contact the transmission pin, the upper end of the transmission pin cooperates with the locking plate, and the return spring is used to act on the locking plate; the transmission pin is hingedly cooperated with the lower plate assembly.

[0010] The self-locking unit is used to be installed in cooperation with the lower plate assembly, and the self-locking unit includes a locking plate, a return spring and a pressing plate. The pressing plate is hingedly cooperated with the lower plate assembly, and one end of the pressing plate can be movably abutted against the locking plate by being pressed upwards, and the return spring is used to act on the locking plate.

[0011] The self-locking unit is used to be installed in cooperation with the lower plate assembly, and the self-locking unit includes a locking plate, a return spring and a lever. The lever is hingedly cooperated with the lower plate assembly, and one end of the lever can be movably abutted against the locking plate after being moved downward, and the return spring is used to act on the locking plate.

[0012] The self-locking unit is used to be installed in conjunction with the lower disk assembly, and the self-locking unit includes a locking pin, a return spring and a socket. One end of the return spring abuts against the locking pin, and the other end abuts against the socket. The return spring deforms as the locking pin moves. The socket is fixedly installed with the lower disk assembly, and one end of the locking pin passes through the socket and extends to the outside of the lower disk assembly.

[0013] The self-locking unit is used to be installed in cooperation with the locking rod assembly. The self-locking unit is a bean spring component. The bean spring component is installed in cooperation with the first inner tube. The lower end of the first inner tube is used to be installed in cooperation with the lower plate assembly. The bean spring component is used to cooperate with the locking slot.

[0014] A button component is hingedly provided on the lower plate assembly, and the button component can movably contact the bean spring component and enable the bean spring component to unlock the lock groove.

[0015] The outer locking rod is also provided with a pre-compression groove, which is used for being installed in cooperation with the bean ejecting member, and the pre-compression groove is located on the axial movable stroke line of the bean ejecting member.

[0016] The present invention is provided with a plurality of self-locking unit structures through optimized design, and in particular, the self-locking unit is integrated with the lower plate assembly to complete the locking or unlocking with the locking rod assembly, simplifying the self-locking unit structure and facilitating the assembly and installation of the self-locking unit; in addition, it is preferred to adopt a spring bean component structure design, utilizing the locking and reset properties of the spring bean component itself, simplifying the installation structure of the self-locking unit and the locking rod assembly, and also realizing the locking or unlocking of the locking rod assembly. In summary, the present invention optimizes the self-locking unit structure, facilitates product installation, reduces production costs, and facilitates product processing.

[0017] The features of the present invention can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the overall contraction state structure of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the locked state of the central self-locking mechanism of Example 2 of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the central self-locking mechanism in the unlocked state of Embodiment 2 of the present invention;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the central self-locking mechanism of Example 2 of the present invention;

[0023] Figure 6 This is a schematic cross-sectional view of the central self-locking mechanism of Example 2 of the present invention;

[0024] Figure 7 It is a schematic diagram of the locking piece structure in Embodiment 2 or Embodiment 3 of the present invention;

[0025] Figure 8 This is a schematic structural diagram of a locked state of a central self-locking mechanism of Embodiment 3 of the present invention;

[0026] Fig. 9This is a schematic diagram of the structure of the central self-locking mechanism in the unlocking state after being pressed in Embodiment 3 of the present invention;

[0027] Fig.10 This is a schematic diagram of the exploded structure of the central self-locking mechanism of Example 3 of the present invention;

[0028] Fig.11 This is a schematic cross-sectional view of the central self-locking mechanism of Example 3 of the present invention;

[0029] Fig.12 This is a schematic diagram of the locking state structure of the central self-locking mechanism of Example 4 of the present invention;

[0030] Fig.13 This is a schematic diagram of the structure of the central self-locking mechanism in the unlocked state of Example 4 of the present invention;

[0031] Fig.14 This is a schematic diagram of the exploded structure of the central self-locking mechanism of Example 4 of the present invention;

[0032] Fig.15 This is a schematic cross-sectional view of the central self-locking mechanism of Example 4 of the present invention;

[0033] Fig.16 Schematic diagram of the locking plate structure in Embodiment 4 of the present invention;

[0034] Fig.17 This is a schematic structural diagram of the locked state of the central self-locking mechanism of Example 5 of the present invention;

[0035] Fig.18 This is a schematic diagram of the structure of the central self-locking mechanism in the unlocked state of Embodiment 5 of the present invention;

[0036] Fig.19 This is a schematic diagram of the exploded structure of the central self-locking mechanism of Example 5 of the present invention;

[0037] Fig. 20 This is a schematic cross-sectional view of the central self-locking mechanism of Example 5 of the present invention;

[0038] Fig.21 This is a schematic diagram of the lock pin structure in Example 5 of the present invention;

[0039] Fig. 22 This is a schematic structural diagram of the locked state of the central self-locking mechanism of Example 6 of the present invention;

[0040] Fig.23 This is a schematic diagram of the structure of the central self-locking mechanism in the unlocked state of Example 6 of the present invention;

[0041] Fig.24 This is a schematic cross-sectional view of the central self-locking mechanism of Example 6 of the present invention;

[0042] Fig.25This is a schematic structural diagram of a locked state of a central self-locking mechanism according to Embodiment 7 of the present invention;

[0043] Fig.26 This is a schematic structural diagram of the central self-locking mechanism in unlocked state according to Embodiment 7 of the present invention;

[0044] Fig. 27 This is a schematic diagram of the exploded structure of the central self-locking mechanism of Example 7 of the present invention;

[0045] Fig.28 This is a schematic cross-sectional structural diagram of a central self-locking mechanism of Example 7 of the present invention;

[0046] 1. Central self-locking mechanism; 11. Lock rod assembly; 111. External lock rod; 112. First inner rod; 113. Second inner rod; 114. Lock groove; 115. Pre-compression groove; 12. Upper plate; 13. Lower plate assembly; 131. First lower plate; 132. Second lower plate; 133. Button; 134. Lock seat; 135. Unlocking port; 14. Self-locking unit; 141. Lock plate; 1411. Lock plate body; 1412. Spring latch; 1413. Lock tongue; 141 4. Travel hole; 142. Return spring; 143. Trigger; 1431. Top block; 144. Transmission pin; 145. Press plate; 1451. Push plate; 146. Trigger plate; 1461. Push block; 147. Lock pin; 1471. Lock tongue; 1472. Spring clamp; 1473. Lock pin body; 148. Clamp seat; 149. Bean spring piece; 1491. Bean spring part; 1492. Elastic part; 2. Tent leg tube; 3. Side cross unit; 4. Middle cross unit. DETAILED DESCRIPTION

[0047] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions involving "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0049] Example 1

[0050] As shown in the figure, the present invention provides a folding tent with a central self-locking structure, including multiple tent leg tubes 2, multiple side cross units 3, multiple middle cross units 4 and at least one central self-locking mechanism 1, the central self-locking mechanism 1 is used to cooperate with one end of the middle cross unit 4 for installation, the central self-locking mechanism 1 includes a locking rod assembly 11, a self-locking unit 14, an upper disk component 12 and a lower disk component 13, and the locking rod assembly 11 is a telescopic rod structure; when the folding tent is in an unfolded state, the self-locking unit 14 and the locking rod assembly 11 are locked, and the distance between the upper disk component 12 and the lower disk component 13 is the smallest; when the folding tent is in a collapsed state, the self-locking unit 14 and the locking rod assembly 11 are unlocked, the locking rod assembly 11 is retractable, and the distance between the upper disk component 12 and the lower disk component 13 gradually increases with the collapse.

[0051] Preferably, there are four tent leg tubes 2, but the tent leg tubes 2 are not limited to four. For example, announcement No. CN204475966U discloses a polygonal full-cross tent; the number of side cross units 3 is usually the same as the number of tent leg tubes 4, preferably four; the number of middle cross units 4 is usually the same as the number of side cross units 3, preferably four; the two ends of the side cross units 3 are respectively used for hinged cooperation with the tent leg tubes 2; one end of the middle cross unit 4 is used for hinged cooperation with the tent leg tubes 2 or for hinged cooperation with the middle of the side cross unit 3, and the other end is used for hinged cooperation with the central self-locking mechanism 1.

[0052] Preferably, the locking rod assembly 11 includes an outer locking rod 111, a first inner rod 112 and a second inner rod 113, a locking groove 114 is provided at the lower portion of the outer locking rod 111, the first inner rod 112 and the second inner rod 113 can be telescopically movable relative to the outer locking rod 111, the outer locking rod 111 is sleeved on the outside of the first inner rod 112 or the second inner rod 113, the first inner rod 112 is sleeved on the outside of the second inner rod 113 or the second inner rod 113 is sleeved on the outside of the first inner rod 112, wherein the outer locking rod 111, the first inner rod 112 and the second inner rod 113 can be made of square tubes, regular polygonal tubes or round tubes, and the interiors are all hollow structures.

[0053] Preferably, the upper portion of the outer locking rod 111 is fixedly mounted to the upper disk member 12. The upper disk member 12 is usually a plastic member and is provided with a plurality of hinged seats for hinged cooperation with the pipe fittings in the middle cross unit 4. This assembly structure is a commonly used assembly structure in existing folding tents; wherein, the upper disk member 12 is sleeved on the outer locking rod 111, and the preferred position is the top end of the outer locking rod 111.

[0054] Example 2

[0055] As shown in the figure, this embodiment is based on Example 1. The self-locking unit 14 in this embodiment is used to cooperate with the lower plate assembly 13 for installation. The self-locking unit 14 and the lower plate assembly 13 are integrated and assembled, which facilitates the installation of the self-locking unit 14. At the same time, the structure of the self-locking unit 14 and the structure of the locking rod assembly 11 can be simplified, and at the same time, the locking or unlocking of the locking rod assembly 11 can be conveniently achieved.

[0056] Among them, the preferred self-locking unit 14 includes a locking plate 141, a return spring 142, a transmission pin 144 and a trigger 143. The trigger 143 is hingedly matched with the lower plate assembly 13. One end of the trigger 143 can movably contact the transmission pin 144. The upper end of the transmission pin 144 cooperates with the locking plate 141. The return spring 142 is used to act on the locking plate 141. The transmission pin 144 is hingedly matched with the lower plate assembly 13.

[0057] Among them, the lower plate assembly 13 includes a first lower plate 131 and a second lower plate 132, which are assembled in an upper and lower combination, and a cavity structure for installing a locking plate 141, a reset spring 142, a transmission pin 144, and a trigger 143 is formed inside, wherein the trigger 143 is hingedly matched with the second lower plate 132 through a pin shaft, and the trigger 143 can also be hingedly matched with the second lower plate 132 by arranging hinge cams on both sides, the trigger 143 is located at the bottom of the second lower plate 132, and is relatively embedded in the second lower plate 132, one end of the trigger 143 can be convenient for the user to pull downward, and the other end is provided with a top block 1431 for contacting and cooperating with the transmission pin 144; the transmission pin 144 is preferably a columnar structure, and the transmission pin 144 is preferably connected to the first The second lower plate 132 is hingedly matched, and can also be hingedly matched with the first lower plate 131. The two side ends of the transmission pin 144 are radially extended with hinge convex shafts, which are convenient for hinged matching with the second lower plate 132. A through pin shaft can also be used to achieve hinged matching. The upper end of the transmission pin 144 is used to match with the locking plate 141; the locking plate 141 includes a locking plate body 1411, a locking tongue 1413, a spring latch 1412 and a travel hole 1414, wherein the locking tongue 1413 is used to match with the locking groove 114 on the outer locking rod 111, one end of the return spring 142 is matched with the spring latch 1412, and the other end is against the cavity wall in the first lower plate 131 and / or the second lower plate 132, and the upper end of the transmission pin 144 is inserted into the travel hole 1414 to realize the position movement of the locking plate 141.

[0058] In the locking rod assembly 11, the lower end of the second inner rod 113 is fixedly installed with the lower plate assembly 13. When the folding tent is in a fully retracted state, the upper end of the second inner rod 113 is detached from the first inner rod 112 or the upper end of the second inner rod 113 is docked with the lower end of the first inner rod 112. During the unfolding of the folding tent, the docking of the telescopic rods of the first inner rod 112 and the second inner rod 113 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0059] The locking or unlocking principle of this embodiment is as follows: when unlocking is required, the user pulls the trigger 143 downward, and the trigger 143 uses a hinged structure, and the other end pries so that the top block 1431 in the trigger 143 abuts against the lower end of the transmission pin 144, so that the lower part of the transmission pin 144 is offset toward the inner center. The hinged position of the transmission pin 144 is preferably in the middle. Because the lower part of the transmission pin 144 is offset inward, the upper end of the transmission pin 144 is offset outward, and the upper end of the transmission pin 144 abuts against the hole wall of the travel hole 1414, thereby pushing the lock plate body 1411 to move outward, so that the lock tongue 1413 is disengaged from the lock groove 114, and the return spring 142 is compressed and deformed due to the force. After the lock tongue 1413 is completely disengaged from the lock groove 114, the user pulls downward. The lower plate assembly 13 separates the lower plate assembly 13 from the outer locking rod 111. When the lower plate assembly 13 continues to move away from the upper plate assembly 12, the folding tent gradually completes the overall folding. When locking is required, the folding tent is in the process of turning from folding to unfolding. As the lower plate assembly 13 continues to move upward, when the outer locking rod 111 is inserted into the locking cavity at the center of the first lower plate 131, the locking tongue 1413 is forced to contact the outer side wall of the outer locking rod 111, and the force is provided by the return spring 142. When the locking groove 114 in the outer locking rod 111 and the locking tongue 1413 are in the same horizontal plane, the locking tongue 1413 is inserted into the locking groove 114 due to the force of the return spring 142 to achieve locking. At this time, the folding tent is in a fully unfolded state.

[0060] Example 3

[0061] As shown in the figure, this embodiment is based on Example 1. The self-locking unit 14 in this embodiment is used to cooperate with the lower plate assembly 13 for installation. The self-locking unit 14 and the lower plate assembly 13 are integrated and assembled, which facilitates the installation of the self-locking unit 14. At the same time, the structure of the self-locking unit 14 and the structure of the locking rod assembly 11 can be simplified, and at the same time, the locking or unlocking of the locking rod assembly 11 can be conveniently achieved.

[0062] Among them, the preferred self-locking unit 14 includes a locking plate 141, a return spring 142 and a pressing plate 145. The pressing plate 145 is hingedly matched with the lower plate assembly 13. One end of the pressing plate 145 can movably contact the locking plate 141. The return spring 142 is used to act on the locking plate 141.

[0063] The lower plate assembly 13 includes a first lower plate 131 and a second lower plate 132, which are assembled in an upper and lower combination, and a cavity structure for installing a locking piece 141, a return spring 142, and a pressing plate 145 is formed inside, wherein the pressing plate 145 is hingedly matched with the second lower plate 132 through a pin shaft, and the pressing plate 145 can also be hingedly matched with the second lower plate 132 by setting hinge convex shafts on both sides. The pressing plate 145 is located at the bottom of the second lower plate 132 and is relatively embedded in the second lower plate 132, and the pressing plate 145 is convenient to use. The user presses to operate, and a push plate 1451 is provided at the other end of the pressing part of the pressing plate 145; the locking plate 141 includes a locking plate body 1411, a locking tongue 1413, a spring latch 1412 and a travel hole 1414, wherein the locking tongue 1413 is used to cooperate with the locking groove 114 on the outer locking rod 111, one end of the return spring 142 cooperates with the spring latch 1412, and the other end abuts against the cavity wall in the first lower plate 131 and / or the second lower plate 132, and the upper end of the push plate 1451 is inserted into the travel hole 1414 to realize the position movement of the locking plate 141.

[0064] Compared with the second embodiment, the pulling structure of the trigger 143 is changed into the pressing structure of the pressing plate 145 , and the driving pin 144 is replaced by the pushing plate 1451 to realize the position movement of the locking plate 141 .

[0065] In the locking rod assembly 11, the lower end of the second inner rod 113 is fixedly installed with the lower plate assembly 132. When the folding tent is in a fully retracted state, the upper end of the second inner rod 113 is detached from the first inner rod 112 or the upper end of the second inner rod 113 is docked with the lower end of the first inner rod 112. During the unfolding of the folding tent, the docking of the telescopic rods of the first inner rod 112 and the second inner rod 113 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0066] The locking or unlocking principle of this embodiment is as follows: when unlocking is required, the user presses the push plate 145 upwards, and the push plate 145 uses a hinge structure to pry the other end so that the push plate 1451 in the push plate 145 contacts the hole wall of the travel hole 1414. As one end of the push plate 145 moves upward, the push plate 1451 at the other end moves relatively outward, thereby pushing the lock plate body 1411 to move outward, so that the lock tongue 1413 is separated from the lock groove 114, and the return spring 142 is compressed and deformed due to the force. After the lock tongue 1413 is completely separated from the lock groove 114, the user pulls the lower plate assembly 13 downwards, so that the lower plate assembly 13 is separated from the outer lock rod 111. When the lower plate assembly 13 continues to move away from the upper plate assembly 12, the folding tent gradually completes the overall folding; when locking is required, the folding tent is in the process of turning from folding to unfolding. As the lower plate assembly 13 continues to move upward, when the outer locking rod 111 is inserted into the locking cavity at the center of the first lower plate 132, the locking tongue 1413 is forced to contact the outer side wall of the outer locking rod 111, and the force is provided by the return spring 142. When the locking groove 114 in the outer locking rod 111 and the locking tongue 1413 are in the same horizontal plane, the locking tongue 1413 is subjected to the force of the return spring 142, so that the locking tongue 1413 is inserted into the locking groove 114 to achieve locking. At this time, the folding tent is in a fully unfolded state.

[0067] Example 4

[0068] As shown in the figure, this embodiment is based on Example 1. The self-locking unit 14 in this embodiment is used to cooperate with the lower plate assembly 13 for installation. The self-locking unit 14 and the lower plate assembly 13 are integrated and assembled, which facilitates the installation of the self-locking unit 14. At the same time, the structure of the self-locking unit 14 and the structure of the locking rod assembly 11 can be simplified, and at the same time, the locking or unlocking of the locking rod assembly 11 can be conveniently achieved.

[0069] Among them, the preferred self-locking unit 14 includes a locking plate 141, a return spring 142 and a lever 146. The lever 146 is hingedly matched with the lower plate assembly 13. One end of the lever 146 can movably contact the locking plate 141. The return spring 142 is used to act on the locking plate 141.

[0070] The lower plate assembly 13 includes a first lower plate 131 and a second lower plate 132, which are assembled in an upper and lower combination, and a cavity structure for installing a locking piece 141, a return spring 142, and a trigger plate 146 is formed inside, wherein the trigger plate 146 is hingedly matched with the second lower plate 132 through a pin shaft, and the trigger plate 146 can also be hingedly matched with the second lower plate 132 by setting hinge convex shafts on both sides. The trigger plate 146 is located at the bottom of the second lower plate 132 and is relatively embedded in the second lower plate 132. The trigger plate 146 is convenient for the user to operate, and a push block 146 is provided at the other end of the triggering portion of the trigger plate 146. 61; The locking plate 141 includes a locking plate body 1411, a locking tongue 1413, a spring latch 1412 and a travel hole 1414, wherein the locking tongue 1413 is used to cooperate with the locking groove 114 on the outer locking rod 111, one end of the return spring 142 cooperates with the spring latch 1412, and the other end abuts against the cavity wall in the first lower plate 131 and / or the second lower plate 132, the upper end of the push block 1461 can abut against the outer side wall of one end of the locking plate body 1411 to realize the movement of the locking plate body 1411, the locking tongue 1413 is located on the inner wall of the travel hole 1414, wherein the outer locking rod 111 can pass through the travel hole 1414 up and down.

[0071] Compared with Example 3, the function of the trigger 146 in this embodiment is changed from the original pressing function 145 to a pulling function. It is a downward pulling structure design, and the operation method is similar to the trigger 143 structure in Example 1. The push block 1461 is also used to directly act on the locking plate 141 to achieve the position movement of the locking plate 141; the structural feature of this embodiment is to utilize the locking tongue 1413 built into the travel hole 1414, and utilize the push block 1461 to act on the outer wall of the locking plate 141 to achieve the unlocking of the locking tongue 1413 and the locking groove 114.

[0072] In the locking rod assembly 11, the lower end of the second inner rod 113 is fixedly installed with the lower plate assembly 13. When the folding tent is in a fully retracted state, the upper end of the second inner rod 113 is detached from the first inner rod 112 or the upper end of the second inner rod 113 is docked with the lower end of the first inner rod 112. During the unfolding of the folding tent, the docking of the telescopic rods of the first inner rod 112 and the second inner rod 113 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0073] The locking or unlocking principle of this embodiment is as follows: when unlocking is required, the user pulls the trigger plate 146 downward, and the trigger plate 146 uses a hinge structure to pry the other end so that the push block 1461 in the trigger plate 146 abuts against the outer wall of one end of the lock plate body 1411. As one end of the trigger plate 146 moves downward, the push plate 1461 at the other end moves relatively inward, thereby pushing the lock plate body 1411 to move inward, so that the lock tongue 1413 is disengaged from the lock groove 114, and the return spring 142 is compressed and deformed due to the force. After the lock tongue 1413 is completely disengaged from the lock groove 114, the user pulls the lower plate assembly 13 downward, so that the lower plate assembly 13 is separated from the outer locking rod 111, and the lower plate assembly As 13 continues to move away from the upper plate 12, the folding tent gradually completes the overall folding; when locking is required, the folding tent is in the process of turning from folding to unfolding, and as the lower plate assembly 13 continues to move upward, when the outer locking rod 111 is inserted into the locking cavity at the center of the first lower plate 132, the locking tongue 1413 is forced to contact the outer side wall of the outer locking rod 111, and the force is provided by the return spring 142, and the outer locking rod 111 is located in the travel hole 1414. When the locking groove 114 in the outer locking rod 111 and the locking tongue 1413 are in the same horizontal plane, the locking tongue 1413 is subjected to the force of the return spring 142, so that the locking tongue 1413 is inserted into the locking groove 114 to achieve locking. At this time, the folding tent is in a fully unfolded state.

[0074] Example 5

[0075] As shown in the figure, this embodiment is based on Example 1. The self-locking unit 14 in this embodiment is used to cooperate with the lower plate assembly 13 for installation. The self-locking unit 14 and the lower plate assembly 13 are integrated and assembled, which facilitates the installation of the self-locking unit 14. At the same time, the structure of the self-locking unit 14 and the structure of the locking rod assembly 11 can be simplified, and at the same time, the locking or unlocking of the locking rod assembly 11 can be conveniently achieved.

[0076] Preferably, in this embodiment, the self-locking unit 14 includes a locking pin 147, a return spring 142 and a socket 148. One end of the return spring 142 abuts against the locking pin 147, and the other end abuts against the socket 148. The return spring 142 deforms as the locking pin 147 moves. The socket 148 is fixedly installed on the lower plate assembly 13. One end of the locking pin 147 passes through the socket 148 and extends to the outside of the lower plate assembly 13.

[0077] The lower plate assembly 13 may be made of an integral structure or a split structure. For the split structure, refer to the corresponding lower plate assembly 13 structures in Embodiment 2, Embodiment 3 and Embodiment 4.

[0078] A cavity is provided in the lower disk assembly 13 for accommodating a locking pin 147, a return spring 142 and a retaining seat 148, wherein the locking pin 147 includes a locking tongue 1471, a spring retaining platform 1472 and a locking pin body 1473, the locking pin body 1473 passes through the return spring 142, one end of the return spring 142 abuts against the spring retaining platform 1472, and the other end abuts against the retaining seat 148, the locking tongue 1471 is located inside the lower disk assembly 13, and the portion of the locking pin body 1473 away from the other end of the locking tongue 1471 passes through the retaining seat 148 and extends to the outside of the lower disk assembly 13, and the locking pin body 1473 can be pulled in and out relative to the retaining seat 148.

[0079] Preferably, a pull ring is provided on the external locking pin body 1473 to facilitate the user to pull the locking pin; or a pull handle can be provided at the outer end of the locking pin body 1473.

[0080] In the locking rod assembly 11, the lower end of the second inner rod 113 is fixedly installed with the lower plate assembly 13. When the folding tent is in full contraction, the upper end of the second inner rod 113 is detached from the first inner rod 112 or the upper end of the second inner rod 113 is docked with the lower end of the first inner rod 112. During the unfolding of the folding tent, the docking of the telescopic rods of the first inner rod 113 and the second inner rod 112 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0081] The locking or unlocking principle of this embodiment is as follows: when unlocking is required, the user pulls the lock pin 147 outwards, so that the lock tongue 1471 moves outwards, thereby disengaging the lock tongue 1471 from the lock slot 114, and at the same time, the return spring 142 is compressed and deformed due to the restriction of the spring clamping platform 1472 and the clamping seat 148. After the lock tongue 1471 completely disengages from the lock slot 114, the user pulls the lower plate assembly 13 downwards, so that the lower plate assembly 13 is separated from the outer locking rod 111. When the lower plate assembly 13 continues to move away from the upper plate 12, the folding tent gradually completes the overall folding; When locking is required, the folding tent is in the process of changing from folding to unfolding. As the lower plate assembly 13 continues to move upward, when the outer locking rod 111 is inserted into the locking cavity at the center of the lower plate assembly 13, the locking tongue 1471 is forced to come into contact with the outer side wall of the outer locking rod 111. The force is provided by the reset spring 142. When the locking groove 114 in the outer locking rod 111 and the locking tongue 1471 are in the same horizontal plane, the locking tongue 1471 is subjected to the force of the reset spring 142, so that the locking tongue 1471 is inserted into the locking groove 114 to achieve locking. At this time, the folding tent is in a fully unfolded state.

[0082] Example 6

[0083] As shown in the figure, this embodiment is based on Example 1. In this embodiment, the self-locking unit 14 is used to be installed in cooperation with the locking rod assembly 11. The self-locking unit 14 is a bean-elastic component 149. The bean-elastic component 149 is installed in cooperation with the first inner tube 112. The lower end of the first inner tube 112 is used to be installed in cooperation with the lower plate assembly 13, and the bean-elastic component 149 is used to lock with the locking groove 114.

[0084] Among them, the locking rod assembly 11 includes an outer locking rod 111, a first inner rod 112 and a second inner rod 113. A locking groove 114 is provided at the lower part of the outer locking rod 111. The first inner rod 112 and the second inner rod 113 can be telescopically movable relative to the outer locking rod 111. The outer locking rod 111 is sleeved on the outside of the first inner rod 112, and the first inner rod 112 is sleeved on the outside of the second inner rod 113.

[0085] In the locking rod assembly 11, the lower end of the first inner rod 112 is fixedly installed with the lower plate assembly 13. When the folding tent is in a fully retracted state, the upper end of the first inner rod 112 is disengaged from the second inner rod 113 or the upper end of the first inner rod 112 is docked with the lower end of the second inner rod 113. During the unfolding of the folding tent, the docking of the telescopic rods of the first inner rod 112 and the second inner rod 113 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0086] The bean-elastic component 149 includes a bean-elastic portion 1491 and an elastic portion 1492 . The bean-elastic portion 1491 protrudes from the first inner rod 112 and is used for locking with the locking groove 114 .

[0087] The locking or unlocking principle of this embodiment is as follows: when unlocking is required, the user presses the spring bean portion 1491 to move it inwards and separate from the lock slot 114, and the elastic portion 1492 is deformed. After the spring bean portion 1491 is completely separated from the lock slot 114, the user pulls the lower plate assembly 13 downwards to separate the lower plate assembly 13 from the outer locking rod 111. When the lower plate assembly 13 continues to move away from the upper plate 12, the folding tent gradually completes the overall folding. When locking is required, the folding tent is in the As the folding turns to the unfolding, with the continuous upward movement of the lower plate assembly 13, when the first inner rod 112 and the second inner rod 113 are retracted or the retracted docking is completed, the first inner rod 112 continues to retract toward the inner cavity of the outer locking rod 111, and when the locking groove 114 in the outer locking rod 111 and the spring-like portion 1491 are in the same horizontal plane, the spring-like portion 1491 is subjected to the force of the elastic portion 1492, so that the spring-like portion 1491 is inserted into the locking groove 114 to achieve locking. At this time, the folding tent is in a fully unfolded state.

[0088] Preferably, in order to allow the bean ejecting portion 1491 to enter the inner cavity of the outer locking rod 111 more smoothly, a pre-compression groove 115 is also provided on the outer locking rod 111. The pre-compression groove 115 is used to cooperate with the bean ejecting member 149 for installation, and the pre-compression groove 115 is located on the axial movable stroke line of the bean ejecting member 149.

[0089] Example 7

[0090] As shown in the figure, in combination with the above-mentioned embodiment 6, in this embodiment, a button member 133 is hingedly provided on the lower plate assembly 13, and the button member 133 can movably contact the bean spring member 149 and can unlock the bean spring member 149 and the lock slot 114.

[0091] The spring bean member 149 is used to be installed on the second inner rod 113, wherein in the locking rod assembly 11, the lower end of the second inner rod 113 is fixedly installed with the lower plate assembly 13, when the folding tent is in a fully retracted state, the upper end of the first inner rod 112 and the second inner rod 113 are in a disengaged state or the upper end of the second inner rod 113 is docked with the lower end of the first inner rod 112, during the unfolding process of the folding tent, the docking of the telescopic rods of the first inner rod 112 and the second inner rod 113 is utilized, which is beneficial to the locking positioning of the self-locking unit 14 and improves the locking stability and accuracy.

[0092] The bean-elastic component 149 includes a bean-elastic portion 1491 and an elastic portion 1492 . The bean-elastic portion 1491 protrudes from the second inner rod 113 and is used for locking with the locking groove 114 .

[0093] Among them, a lock seat 134 is provided in the lower plate assembly 13, and the lock seat 134 has a cavity structure, which is convenient for the lower end of the outer locking rod 111 to extend into, and an unlocking port 135 is provided on the lock seat 134. When the folding tent is in a fully controlled state, the unlocking port 135, the spring bean part 1491, and the lock groove 114 are in the same horizontal plane; the button part 133 is located outside the unlocking port 135. When the user presses the button part 133, the button part 133 can resist the spring bean part 1491, thereby realizing the separation of the spring bean part 1491 from the lock groove 114.

[0094] The button member 133 is optimally arranged. Compared with Example 6, this structural design can prevent the user from directly acting on the spring bean member 1491, making unlocking relatively more convenient and effective, and the operation more convenient and comfortable.

[0095] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A folding tent with a central self-locking structure, comprising a plurality of tent leg tubes (2), a plurality of side cross units (3), a plurality of middle cross units (4) and at least one central self-locking mechanism (1), characterized in that: The central self-locking mechanism (1) is used for being installed in cooperation with one end of the middle cross unit (4). The central self-locking mechanism (1) comprises a locking rod assembly (11), a self-locking unit (14), an upper disk component (12) and a lower disk component (13). The locking rod assembly (11) is a telescopic rod structure. When the folding tent is in an unfolded state, the self-locking unit (14) and the locking rod assembly (11) are locked, and the distance between the upper disk component (12) and the lower disk component (13) is the smallest. When the folding tent is in a collapsed state, the self-locking unit (14) and the locking rod assembly (11) are unlocked, the locking rod assembly (11) is telescopic, and the distance between the upper disk component (12) and the lower disk component (13) gradually increases with the collapse. The locking rod assembly (11) comprises an outer locking rod (111), a first inner rod (112) and a second inner rod (113). The lower part of the outer locking rod (111) is provided with a The first inner rod (112) and the second inner rod (113) are telescopically movable relative to the outer locking rod (111); the upper portion of the outer locking rod (111) is fixedly mounted on the upper disk component (12); a self-locking unit (14) is mounted in cooperation with the lower disk component (13); the self-locking unit (14) comprises a locking plate (141), a return spring (142), a transmission pin (144) and a trigger (143); the trigger (14 3) being hingedly connected with the lower plate assembly (13), one end of the trigger (143) movably abuts against the transmission pin (144), the upper end of the transmission pin (144) is connected with the locking plate (141), and the return spring (142) is used to act on the locking plate (141); the lower plate assembly (13) comprises a first lower plate (131) and a second lower plate (132), and the first lower plate (131) and the second lower plate (132) are assembled in an upper and lower combination.

2. A folding tent with a central self-locking structure according to claim 1, characterized in that: The transmission pin (144) is hingedly matched with the lower plate assembly (13).

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