Height adjusting device of tent

Abstract

The invention provides a tent height adjusting device, and relates to the technical field of tent adjusting.The tent height adjusting device comprises a framework structure, the framework structure comprises a supporting rod, a stepped groove is formed in the upper portion of the supporting rod, a supporting sleeve is installed at the position, above the stepped groove, of the outer side of the supporting rod, and the stepped groove is of a rectangular-ambulatory-plane structure; a hinged lifting plate is installed on the inner side of the framework structure. The lifting plate is matched with the design of the locking pin, so that the lifting plate is simple and rapid to unfold and fold, when the height of the tent is adjusted, an operator can rapidly unfold the lifting plate for operation, rapid locking can be achieved after adjustment is completed, and the efficiency of adjusting the height of the tent is greatly improved; the locking seat is easy and convenient to design and operate, and when the height of the supporting sleeve is adjusted, an operator does not need additional tools to conduct complex operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tent adjusting, in particular to a height adjusting device of a tent. BACKGROUND

[0002] In the scene of outdoor camping, field operation, and temporary activity site construction, tents are extremely important temporary living or activity space carriers. With the diversification of people's outdoor activities, the functional requirements for tents are becoming higher and higher, and the height adjusting function has become a key requirement. However, the following deficiencies exist in the height adjusting process of tents: Traditional tents have height adjusting functions, but the skeletons of the tents are basically locked by elastic balls and bolts. Therefore, when the height of the tent is adjusted, the balls need to be pressed with force when unlocked, and the bolts need to be unlocked by using a wrench, which makes the height adjustment of the tent very troublesome. Moreover, the balls are prone to shaking, and the bolts are prone to loosening, which can easily cause the skeleton of the tent to slide down. In mountain camping and environments with uneven ground, the tent is directly stabilized by using a pin and the ground, which can easily cause the tent to tilt and can also cause the tent to be unstable and unsafe. SUMMARY

[0003] The present application relates to a height adjusting device of a tent. An operator first lifts a locking plate, then rotates a handle above a threaded rod to make the threaded rod rotate and drive a threaded connecting sleeve to move up and down, thereby adjusting the height of the bottom of a skeleton structure. When the height is adjusted to a suitable height, the operator lowers the locking plate, the threaded rod is locked, and the operator presses a pressing rod downward, so that an inclined surface at the bottom of the pressing rod pushes a locking seat to one side to unlock a supporting sleeve.

[0004] The present application provides a height adjusting device of a tent, which specifically comprises: a skeleton structure, the skeleton structure comprising a supporting rod, a stepped groove being provided above the supporting rod, a supporting sleeve being installed above the stepped groove on the outer side of the supporting rod, the stepped groove being in a back-to-back shape, a hinged lifting plate being installed at the inner side of the skeleton structure, a locking pin being installed at the hinged position of the lifting plate, a rotating hole being provided at the bottom position of the supporting rod, the rotating hole being in a cylindrical stepped structure, a vertical threaded rod being inserted into the rotating hole, a threaded connecting sleeve being installed at the outer side of the threaded rod, a vertical positioning bolt being installed at the bottom position of the skeleton structure, a locking plate being installed at the outer side of the positioning bolt, a sliding hole being provided at the bottom position of the supporting sleeve, the sliding hole being in a rectangular structure, and a locking seat being installed in the sliding hole.

[0005] Further, the inside of the support sleeve and the upper position of the stepped groove correspond, the upper position of the support sleeve is installed with a hinged hinge plate, one side of the hinge plate is installed with a hinged support frame, the support rod, the support sleeve, the hinge plate and the support frame cooperate to form a framework structure.

[0006] Further, one side of the lifting plate is provided with two sliding holes, a locking pin passes through the inside of the sliding hole, a group of annular array locking blocks are arranged at the large head of the locking pin, the locking blocks are rectangular structures, one of the sliding holes of the lifting plate is provided with a group of locking grooves, a support spring and a clamping spring are installed at the outside position of the locking pin, and the support spring is stretched to press the locking grooves and the locking blocks.

[0007] Further, two positioning strips are arranged on the inner side of the rotating hole at the bottom of the support rod, the positioning strips are circular arc structures, a group of positioning grooves corresponding to the positioning strips are arranged on the outside of the threaded connection sleeve, the positioning grooves are circular arc structures, and the positioning strips extend to the inside of the positioning grooves.

[0008] Further, a rotating ring is arranged on the outer side of the threaded rod, the rotating ring is a circular ring structure, and the threaded connection sleeve and the threaded rod are threadedly connected at the bottom.

[0009] Further, a rotatingly connected friction seat is installed at the bottom position of the threaded connection sleeve, a rotating ring is arranged at the bottom position of the threaded connection sleeve, and a stepped groove corresponding to the rotating ring is arranged at the inside position of the friction seat.

[0010] Further, a sliding hole is arranged on one side of the locking plate, a positioning bolt passes through the inside of the sliding hole, and a support ring is installed at the outside position of the positioning bolt.

[0011] Further, a group of annular array locking blocks are arranged at the upper position of the threaded rod, the locking blocks are rectangular structures, a vertical handle is arranged at the upper position of the threaded rod, a group of locking grooves corresponding to the locking blocks are arranged at the inside position of the locking plate, and the locking blocks and the locking grooves are pressed together after the locking plate moves downward under its own gravity.

[0012] Further, two transverse positioning rods are arranged on one side of the locking seat, a friction plate is installed between the two positioning rods, a positioning shell is installed on one side of the support sleeve, and the locking seat, the positioning rods, the positioning shell, the extrusion rod and the friction plate cooperate to form a locking structure, two sliding holes are arranged on one side of the positioning shell, and the positioning rods pass through the inside of the sliding holes.

[0013] Further, a ring-shaped groove is arranged on one side of the positioning rod, and two mounting holes are arranged on one side of the friction plate, the mounting holes extend to the inside of the ring-shaped groove.

[0014] Further, one side of the framework structure is provided with a group of evenly distributed occlusion grooves in a rectangular structure, one side of the locking seat is provided with a group of locking blocks corresponding to the occlusion grooves, and one support spring is installed on the outside of the positioning rod.

[0015] Further, the bottom of the support sleeve is provided with a positioning frame in a back-shaped structure, an extrusion rod is inserted into the positioning frame, and the bottom of the extrusion rod is provided with an inclined surface.

[0016] The application provides a height adjusting device for a tent, which has the following beneficial effects: In the application, the lifting plate cooperates with the locking pin, so that the tent can be quickly unfolded and folded, the lifting plate can be quickly unfolded for operation when the height of the tent is adjusted, and the lifting plate can be quickly locked after adjustment, thereby greatly improving the efficiency of tent height adjustment; the locking seat is designed to be simple to operate, so that the operator does not need to use additional tools for complex operation when adjusting the height of the support sleeve, and the support sleeve can be quickly locked and unlocked by simply moving the locking seat, thereby further improving the convenience of tent height adjustment. Specifically, the occlusion grooves on one side of the framework structure and the locking blocks of the locking seat are tightly occluded under the action of the support spring, so that the support sleeve can be reliably locked, and compared with the traditional ball and bolt locking mode, the application is more stable and convenient to operate.

[0017] The bottom of the framework structure is provided with a threaded rod, the threads of the threaded rod are hidden in the framework structure, impurities are prevented from entering the threads, the lifting of the threaded connection sleeve is controlled by rotating the threaded rod, the height of the bottom of the tent framework structure is accurately adjusted, and the stability of the tent in different terrains and use scenarios is enhanced.

[0018] The locking plate cooperates with the locking block above the threaded rod, so that the threaded rod can be quickly locked at different angles, the threaded rod is prevented from rotating in the opposite direction, and the stability of the tent after height adjustment is further ensured.

[0019] The height adjusting device is suitable for various tents, the threaded rod and the lifting plate can meet the diversified needs of different users for the height of the tent, the tent can be normally used whether on flat ground or in complex terrain, and the application scenarios of the tent are expanded. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings described in the following description only relate to some embodiments of the application, rather than limiting the application.

[0022] In the drawings: Figure 1 Fig. 3 shows a schematic view of the assembled height adjustment device of the present application from the shaft side; Figure 2 Fig. 4 shows a schematic view of the assembled height adjustment device of the present application from the shaft side with the lifting plate stored in the height adjustment device; Figure 3 Fig. 5 shows a schematic view of the assembled height adjustment device of the present application from the shaft side with the lifting plate stored in the height adjustment device; Figure 2 Fig. 6 shows a schematic view of the assembled height adjustment device of the present application from the front side; Figure 4 Fig. 7 shows a schematic view of the assembled height adjustment device of the present application from the shaft side with the support rod, the support sleeve and the lifting plate partially cut away; Figure 5 Fig. 8 shows a schematic view of the assembled height adjustment device of the present application from the shaft side with the support rod partially cut away; Figure 6 Fig. 9 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position A; Figure 1 Fig. 10 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position B; Figure 7 Fig. 11 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position C; Figure 2 Fig. 12 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position D; Figure 8 Fig. 13 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position E; Figure 3 Fig. 14 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position F; Figure 9 Fig. 15 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position G. Figure 5 Fig. 16 shows a schematic view of the assembled height adjustment device of the present application from the front side with the enlarged view of position H.

[0023] List of reference signs 1, skeleton structure; 101, support rod; 102, support sleeve; 103, hinged plate; 104, support frame; 2, lifting plate; 201, locking pin; 3, bottom height adjustment mechanism; 301, threaded connecting sleeve; 302, threaded rod; 4, positioning bolt; 5, locking plate; 6, locking structure; 601, locking seat; 602, positioning rod; 603, positioning housing; 604, extrusion rod; 605, friction plate. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0025] Embodiment one: please refer to Figures 1 to 9 : The application provides a height adjusting device of a tent, which comprises a framework structure 1, the framework structure 1 comprises a support rod 101, a stepped groove is arranged at the upper position of the support rod 101, a support sleeve 102 is arranged at the upper position of the stepped groove in the outer side of the support rod 101, the stepped groove is in a character-shaped structure, the inner side of the support sleeve 102 corresponds to the upper position of the stepped groove, so that the support rod 101 and the support sleeve 102 can be circumferentially positioned after being assembled, the hollow structure of the support sleeve 102 can be moved up and down along the support rod 101, a hinged hinge plate 103 is arranged at the upper position of the support sleeve 102, a hinged support frame 104 is arranged at one side of the hinge plate 103, the support rod 101, the support sleeve 102, the hinge plate 103 and the support frame 104 cooperatively form the framework structure 1, a vertical sliding hole is formed at the middle position of the support frame 104, a push rod of a common umbrella expansion mechanism is inserted into the inner side of the sliding hole, and the umbrella expansion mechanism is subsequently connected with the hinge plate 103 and the support frame 104, so that the hinge plate 103 and the support frame 104 can be driven to move when the push rod of the umbrella expansion mechanism moves, thereby achieving the effect that the tent is convenient to unfold and store. In the embodiment, a hinged lifting plate 2 is arranged at the inner side of the framework structure 1, a locking pin 201 is arranged at the hinged position of the lifting plate 2, two sliding holes are formed at one side of the lifting plate 2, the locking pin 201 is inserted into the inner side of the sliding hole, the unfolding and storage of the lifting plate 2 are facilitated under the cooperation of the locking pin 201, a plurality of locking blocks in annular array are arranged at the big head of the locking pin 201, the locking blocks are in rectangular structures, a plurality of locking grooves are formed in one of the sliding holes of the lifting plate 2, a support spring and a clamping spring are arranged at the outer side of the locking pin 201, the support spring is stretched to press the locking grooves and the locking blocks, so that the effect that the position of the lifting plate 2 is quickly locked is achieved, the lifting plate 2 is unfolded after being lifted by the support sleeve 102, the lifting plate 2 is unlocked after the pressing force of a compression spring is applied to the locking pin 201, and the lifting plate 2 can be unfolded and stored, so that the operation of the lifting plate 2 is simple and fast, the lifting plate 2 can be quickly unfolded and operated by an operator when the height of the tent needs to be adjusted, the lifting plate 2 can be quickly locked after adjustment is completed, and the efficiency of the height adjustment of the tent is improved. In this embodiment, the rotating hole at the bottom of the support rod 101 has two positioning strips on its inner side. The positioning strips are arc-shaped. A set of positioning grooves corresponding to the positioning strips are opened on the outer side of the threaded connecting sleeve 301. The positioning grooves are arc-shaped, and the positioning strips extend into the interior of the positioning grooves. With the cooperation of the positioning strips and positioning grooves, the threaded connecting sleeve 301 is circumferentially positioned. A rotating hole is opened at the bottom of the support rod 101. The rotating hole is a cylindrical stepped structure. A vertical threaded rod 302 is inserted inside the rotating hole. The threaded connecting sleeve 301 and the threaded rod 302 cooperate to form the bottom height adjustment mechanism 3. A rotating ring is opened on the outer side of the threaded rod 302. The rotating ring is a circular ring structure. The rotating ring combined with the stepped structure of the rotating hole can achieve the desired effect. The threaded rod 302's vertical and horizontal positioning allows it to rotate stably in place. This in-place rotation feature conceals the threads, preventing airborne impurities from falling inside. The threaded connecting sleeve 301 and the bottom of the threaded rod 302 are connected by threads. Rotating the threaded rod 302 controls the vertical movement of the threaded connecting sleeve 301. When the threaded connecting sleeve 301 moves downward, it provides support and stability to the bottom of the frame structure 1. Therefore, this structural design protects the threads of the threaded rod 302, extending its service life, and effectively adjusts the bottom height of the tent frame structure 1 by controlling the raising and lowering of the threaded connecting sleeve 301, thus enhancing the tent's stability in different terrains and usage scenarios. In this embodiment, a rotatable friction seat is installed at the bottom of the threaded connecting sleeve 301. A rotating ring is provided at the bottom of the threaded connecting sleeve 301, and a stepped groove corresponding to the rotating ring is opened inside the friction seat. With the cooperation of the rotating ring and the stepped groove, the threaded connecting sleeve 301 and the friction seat can rotate flexibly. The friction seat first contacts the ground to generate friction force to stabilize the placement position of the frame structure 1. Therefore, this structural design not only protects the threads of the threaded rod 302 and extends its service life, but also achieves effective adjustment of the bottom height of the tent frame structure 1 by controlling the lifting and lowering of the threaded connecting sleeve 301, enhancing the stability of the tent in different terrains and usage scenarios. A threaded connecting sleeve 301 is installed on the outer side of the threaded rod 302, and a vertical positioning bolt 4 is installed at the bottom of the frame structure 1. A locking plate 5 is installed on the outer side of the positioning bolt 4 to lock it. A sliding hole is opened on one side of the locking plate 5. The positioning bolt 4 passes through the inside of the sliding hole. A support ring is installed on the outside of the positioning bolt 4. The support ring positions the locking plate 5 at its falling position. A sliding hole is opened at the bottom of the support sleeve 102. The sliding hole has a rectangular structure. A locking seat 601 is installed inside the sliding hole. The sliding hole provides lateral sliding space while positioning the locking seat 601 circumferentially. A set of locking blocks arranged in a ring array is provided above the threaded rod 302. The locking blocks have a rectangular structure. A vertical handle is provided above the threaded rod 302. The operator can easily control the rotation of the threaded rod 302 by turning the handle. A set of locking grooves corresponding to the locking blocks are opened on the inner side of the locking plate 5. When the locking plate 5 moves downward under its own weight, the locking blocks and locking grooves are pressed together. At this time, the locking plate 5 and the locking grooves can quickly lock the threaded rod 302 at different angles to prevent the threaded rod 302 from rotating in the opposite direction. In this embodiment, two transverse positioning rods 602 are provided on one side of the locking seat 601, and a friction plate 605 is installed between the two positioning rods 602. A positioning housing 603 is installed on one side of the support sleeve 102. The locking seat 601, positioning rods 602, positioning housing 603, pressing rod 604, and friction plate 605 cooperate with each other to form a locking structure 6. The positioning housing 603 can be firmly assembled with the support sleeve 102 by adhesion, or the positioning housing 603 can be firmly assembled with the support sleeve 102 by bolts, provided that the positioning housing 603 can be easily removed. Two sliding holes are opened on one side of the positioning housing 603, and the positioning rods 602 pass through the interior of the sliding holes. Therefore, the arrangement of the positioning housing 603 and the positioning rods 602 makes the fit between the locking seat 601 and the support sleeve 102 tighter, thereby improving the reliability and stability of locking the position of the support sleeve 102. In this embodiment, an annular groove is formed on one side of the positioning rod 602, and two mounting holes are formed on one side of the friction plate 605, extending into the interior of the annular groove. The annular groove positions the friction plate 605 for installation. An opening groove is formed on the mounting holes to facilitate the assembly and disassembly of the friction plate 605. A set of evenly distributed engagement grooves with a rectangular structure are formed on one side of the frame structure 1. A set of locking blocks corresponding to the engagement grooves are provided on one side of the locking seat 601. A support spring is installed on the outer side of the positioning rod 602. The support spring pushes the engagement grooves and locking blocks to engage, enabling the locking seat 601 to quickly lock the position of the support sleeve 102. Compared with the current ball and bolt locking, the setting operation of the locking seat 601 is more convenient. Therefore, in When adjusting the height of the support sleeve 102, the operator does not need to use additional tools for complicated operations. Simply moving the locking seat 601 can quickly lock and unlock the support sleeve 102, greatly improving the efficiency of tent height adjustment. A positioning frame is provided at the bottom of the support sleeve 102. The positioning frame has a U-shaped structure. A pressing rod 604 is inserted inside the positioning frame. The positioning frame circumferentially positions the moving position of the pressing rod 604. An inclined surface is provided at the bottom of the pressing rod 604. When the operator presses the pressing rod 604 down, it will push the locking seat 601 to one side in conjunction with the inclined surface, thus locking the support sleeve 102. Then, the operator applies a lifting force to the lifting plate 2 to raise the height of the support sleeve 102.

[0026] Example 2, based on Example 1, such as Figures 1-3 As shown, one side of the locking plate 5 can be slightly in contact with the side of the skeleton structure 1, so that the locking plate 5 can be circumferentially positioned in conjunction with the side.

[0027] Example 3, based on Example 1, such as Figures 1-3 As shown, a tent needs to be installed on the outside of the frame structure 1. The specific material and positioning steps of the tent should be selected according to actual needs.

[0028] The working principle of this embodiment: Assemble the support rod 101, support sleeve 102, hinge plate 103, and support frame 104 in sequence. Pass the threaded rod 302 through the rotating hole at the bottom of the support rod 101, so that the outer rotating ring of the threaded rod 302 cooperates with the stepped structure of the rotating hole to achieve the vertical and horizontal positioning of the threaded rod 302. Thread the threaded connecting sleeve 301 to the bottom of the threaded rod 302. Install the friction seat for rotating connection at the bottom of the threaded connecting sleeve 301. Hinge the lifting plate 2 to the frame structure 1 through the locking pin 201 to ensure that the locking block at the large end of the locking pin 201 cooperates with the locking groove of the lifting plate 2. The support spring is stretched to press the two together to achieve quick locking of the position of the lifting plate 2. Pass the positioning bolt 4 through the sliding hole of the locking plate 5 and install the support ring to position the locking plate 5 at the falling position. Install the locking seat 601 in the sliding hole at the bottom of the support sleeve 102. Pass the positioning rod 602 through the sliding hole of the positioning housing 603. Install the friction plate 605 on the positioning rod 602. Insert the pressing rod 604 into the positioning frame at the bottom of the support sleeve 102. According to actual needs, the operator first raises the locking plate 5, and then the operator rotates the handle above the threaded rod 302 to make the threaded rod 302 rotate, which drives the threaded connecting sleeve 301 to move up and down, thereby adjusting the height of the bottom of the skeleton structure 1. When the appropriate height is adjusted, the operator lowers the locking plate 5, at which point the threaded rod 302 is locked. Next, the operator presses the compression rod 604 downwards. The inclined surface at the bottom of the compression rod 604 will push the locking seat 601 to one side, thus unlocking the support sleeve 102. The operator applies a rotational force to the unfolded lifting plate 2, and at the same time applies a compression spring pressure to the locking pin 201, so that the lifting plate 2 is unlocked and unfolded. Then, the support sleeve 102 is lifted by the lifting plate 2 to further adjust the height of the tent. After the height adjustment is completed, the compression rod 604 is pulled up to separate the locking block of the locking seat 601 from the engagement groove of the frame structure 1, and the locking seat 601 quickly locks the support sleeve 102. During the height adjustment of the tent, the threaded rod 302 can be rotated again for fine adjustment as needed; After the tent is finished, first lift the locking plate 5 upwards to separate it from the locking block on the threaded rod 302, release the lock on the threaded rod 302, rotate the threaded rod 302 in the opposite direction to lift the threaded connecting sleeve 301, put the lifting plate 2 away, and disassemble and put away the other parts of the tent in sequence.

Claims

1. A height adjustment device for a tent, characterized in that, include: The skeleton structure (1), lifting plate (2) and locking plate (5) include a support rod (101), a stepped groove is provided at the upper position of the support rod (101), a support sleeve (102) is installed on the outer side of the support rod (101) above the stepped groove, a hinged lifting plate (2) is installed on the inner side of the skeleton structure (1), a locking pin (201) is installed at the hinge position of the lifting plate (2), a rotating hole is opened at the bottom position of the support rod (101), a vertical threaded rod (302) is inserted inside the rotating hole, a threaded connecting sleeve (301) is installed on the outer side of the threaded rod (302), a vertical positioning bolt (4) is installed at the bottom position of the skeleton structure (1), a locking plate (5) is installed on the outer side of the positioning bolt (4), a sliding hole is opened at the bottom position of the support sleeve (102), the sliding hole is a rectangular structure, and a locking seat (601) is installed inside the sliding hole.

2. The height adjustment device for a tent according to claim 1, characterized in that, The inside of the support sleeve (102) corresponds to the position above the stepped groove. A hinged hinge plate (103) is installed above the support sleeve (102). A hinged support frame (104) is installed on one side of the hinge plate (103). The support rod (101), support sleeve (102), hinge plate (103), and support frame (104) cooperate with each other to form a skeleton structure (1).

3. The height adjustment device for a tent according to claim 1, characterized in that, Two sliding holes are opened on one side of the lifting plate (2). The locking pin (201) passes through the inside of the sliding hole. A set of locking blocks arranged in a ring array are provided at the large end of the locking pin (201). A set of locking grooves is opened in one of the sliding holes of the lifting plate (2). A support spring and a snap ring are installed on the outer side of the locking pin (201). The support spring stretches the locking groove and the locking block to press together.

4. The height adjustment device for a tent according to claim 1, characterized in that, The rotating hole at the bottom of the support rod (101) has two positioning strips on its inner side. A set of positioning grooves corresponding to the positioning strips are opened on the outer side of the threaded connecting sleeve (301), and the positioning strips extend into the interior of the positioning grooves.

5. The height adjustment device for a tent according to claim 1, characterized in that, A rotating ring is provided on the outer side of the threaded rod (302). The rotating ring is a circular ring structure. The bottom of the threaded connecting sleeve (301) and the threaded rod (302) are threadedly connected. A friction seat with a rotating connection is installed at the bottom of the threaded connecting sleeve (301). A rotating ring is provided at the bottom of the threaded connecting sleeve (301). A stepped groove corresponding to the rotating ring is provided inside the friction seat. The threaded connecting sleeve (301) and the threaded rod (302) cooperate with each other to form a bottom height adjustment mechanism (3).

6. The height adjustment device for a tent according to claim 1, characterized in that, A sliding hole is opened on one side of the locking plate (5), the positioning bolt (4) passes through the inside of the sliding hole, and a support ring is installed on the outside of the positioning bolt (4).

7. The height adjustment device for a tent according to claim 1, characterized in that, A set of locking blocks arranged in a ring array are provided above the threaded rod (302). A vertical handle is provided above the threaded rod (302). A set of locking grooves corresponding to the locking blocks are opened on the inner side of the locking plate (5). When the locking plate (5) moves downward under its own gravity, the locking blocks and locking grooves are pressed together.

8. The height adjustment device for a tent according to claim 1, characterized in that, The locking seat (601) has two horizontal positioning rods (602) on one side, and a friction plate (605) is installed between the two positioning rods (602). A positioning housing (603) is installed on one side of the support sleeve (102). The locking seat (601), positioning rods (602), positioning housing (603), pressing rod (604), and friction plate (605) cooperate with each other to form a locking structure (6). Two sliding holes are opened on one side of the positioning housing (603), and the positioning rods (602) pass through the interior of the sliding holes.

9. A tent height adjustment device according to claim 8, characterized in that, An annular groove is provided on one side of the positioning rod (602), and two mounting holes are provided on one side of the friction plate (605). The mounting holes extend into the interior of the annular groove. A set of evenly distributed engagement grooves are provided on one side of the skeleton structure (1). A set of locking blocks corresponding to the engagement grooves are provided on one side of the locking seat (601). A support spring is installed on the outer side of the positioning rod (602). The engagement grooves and locking blocks engage.

10. A tent height adjustment device according to claim 1, characterized in that, The support sleeve (102) has a positioning frame at its bottom, and a compression rod (604) is inserted inside the positioning frame. The bottom of the compression rod (604) has an inclined surface.

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