Telescopic support device and mobile scaffold

Abstract

The utility model provides a kind of telescopic support device and movable scaffold, it is related to scaffold telescopic diagonal bracing technical field, form the clamping protrusion in the inner wall of mounting hole, corresponding sliding slot is set on the outer wall of telescopic inner tube, when telescopic inner tube telescopic moves, clamping protrusion moves in sliding slot, and because clamping protrusion extends into sliding slot, telescopic inner tube cannot rotate along its axis direction, avoid telescopic inner tube to rotate when telescopic moves, and set limit pin on telescopic inner tube, clamping protrusion can resist limit pin, to avoid telescopic inner tube from mounting hole, avoid the risk of telescopic inner tube to fall off, alleviate the technical problem that telescopic diagonal bracing pipe telescopic length is prone to rotate in prior art, and telescopic inner tube is prone to fall off.

Description

Technical Field

[0001] This utility model relates to the field of scaffold telescopic bracing technology, and in particular to a telescopic support device and a mobile scaffold. Background Technology

[0002] Mobile scaffolding, a common construction equipment, is widely used in building, decoration, and maintenance. Its flexibility and convenience make it an important tool for high-altitude operations. To ensure the stability and safety of mobile scaffolding, after its location is determined, it is usually necessary to install telescopic bracing pipes on the four outer corners for fixation. The main function of the telescopic bracing pipes is to adjust their length to form a stable support structure between the scaffolding and the ground or wall, thereby preventing the scaffolding from tilting or moving during use.

[0003] Existing telescopic bracing tubes typically employ a design with a retaining spring and an adjustment hole. The telescopic length is adjusted by the engagement of the retaining spring pin and the adjustment hole. Specifically, the telescopic bracing tube consists of an outer tube and an inner tube. The inner tube can slide inside the outer tube, the adjustment hole is located on the outer tube, and the retaining spring pin is used to lock the position of the inner tube.

[0004] However, this design has certain drawbacks in practical use. First, when adjusting the telescopic length, the inner tube is prone to rotation due to the low friction between the outer and inner tubes, causing the retaining pin to misalign with the adjustment hole and thus failing to lock the inner tube in place. Second, when adjusting the extension length, the inner tube may accidentally detach due to the lack of an effective fixing mechanism, which not only affects construction efficiency but may also threaten the safety of construction workers. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic support device and a mobile scaffold to alleviate the technical problems in the prior art where the telescopic diagonal brace tube is prone to rotation when it is extended or retracted, and the telescopic inner tube is prone to falling off.

[0006] In a first aspect, the telescopic support device provided by this utility model includes: a telescopic outer tube, a telescopic connector, and a telescopic inner tube;

[0007] The telescopic connector has a mounting hole, one end of the telescopic outer tube is used to be hinged to the support tube, the other end of the telescopic outer tube extends into the mounting hole, and the telescopic outer tube is configured to be connected to the telescopic connector.

[0008] One end of the telescopic inner tube passes through the mounting hole and extends into the telescopic outer tube, and the telescopic inner tube is configured to be able to telescopically move relative to the telescopic outer tube;

[0009] The inner wall of the mounting hole extends to form a snap-fit ​​protrusion, and the outer wall of the telescopic inner tube is provided with a sliding groove. The snap-fit ​​protrusion extends into the sliding groove to restrict the telescopic inner tube from rotating along its own axis.

[0010] The telescopic inner tube is provided with a limiting pin, which is located on the side of the snap-fit ​​protrusion near the telescopic outer tube. The limiting pin can abut against the snap-fit ​​protrusion to prevent the telescopic inner tube from coming out of the mounting hole.

[0011] In an optional implementation,

[0012] The telescopic support device also includes a snap ring component;

[0013] The snap ring component is configured to be sleeved on the telescopic connector;

[0014] The retaining ring component is provided with an adjustment protrusion, and the telescopic connector is provided with an adjustment hole. The adjustment hole is used for inserting the adjustment protrusion so that the adjustment protrusion connects with the telescopic inner tube to restrict the movement of the telescopic inner tube.

[0015] In an optional implementation,

[0016] The telescopic inner tube is provided with a pin hole, which is located at the bottom of the sliding groove, and the limiting pin passes through the pin hole.

[0017] In an optional implementation,

[0018] The telescopic support device also includes a connecting pin;

[0019] The connecting pin is configured to pass through the telescopic connector and the telescopic outer tube.

[0020] In an optional implementation,

[0021] The telescopic support device also includes a pivot connector;

[0022] The hinge connector is connected to the end of the telescopic outer tube away from the telescopic connector, and the hinge connector is used to rotatably connect with the support tube.

[0023] In an optional implementation,

[0024] The telescopic support device also includes a sealing ring;

[0025] The hinge connector has a connecting part for connecting the telescopic outer tube;

[0026] A sealing groove is provided on the outer periphery of the connecting part, and the sealing ring is embedded in the sealing groove.

[0027] In an optional implementation,

[0028] The telescopic support device also includes a sealing sleeve;

[0029] The sealing sleeve is fitted onto the connecting part, the sealing sleeve is provided with a connecting protrusion, the pivot connector is provided with a connecting groove, and the connecting protrusion extends into the connecting groove to restrict the sealing sleeve from rotating along its own axis.

[0030] The portion of the connecting part located between the connecting groove and the sealing groove is provided with an injection groove, and the sealing sleeve is provided with an injection hole, which communicates with the injection groove.

[0031] In an optional implementation,

[0032] The telescopic support device also includes an insertion pin;

[0033] The insertion pin is configured to pass through the telescopic outer tube and the connecting part.

[0034] In an optional implementation,

[0035] The telescopic support device also includes a pivot tube;

[0036] One end of the hinge tube is rotatably connected to the telescopic connector, and the other end of the hinge tube is rotatably connected to the support tube.

[0037] Secondly, the mobile scaffolding provided by this utility model includes a support pipe and a telescopic support device.

[0038] Multiple support tubes are arranged in an array, and each of the four corner support tubes is connected to a telescopic support device.

[0039] The telescopic support device provided by this utility model forms a snap-fit ​​protrusion on the inner wall of the mounting hole, and a corresponding sliding groove is provided on the outer wall of the telescopic inner tube. When the telescopic inner tube moves telescopically, the snap-fit ​​protrusion moves in the sliding groove. Since the snap-fit ​​protrusion extends into the sliding groove, the telescopic inner tube cannot rotate along its own axis, thus preventing the telescopic inner tube from rotating during telescopic movement. Furthermore, a limiting pin is provided on the telescopic inner tube, and the snap-fit ​​protrusion can abut against the limiting pin, thereby preventing the telescopic inner tube from coming out of the mounting hole and avoiding the risk of the telescopic inner tube falling off. This alleviates the technical problems of easy rotation and easy detachment of the telescopic diagonal brace tube when it extends or retracts in the prior art. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 An exploded structural diagram of the telescopic outer tube, telescopic connector, and telescopic inner tube in the telescopic support device provided in this embodiment of the utility model;

[0042] Figure 2 A schematic diagram of the overall structure of the telescopic support device provided in this embodiment of the utility model;

[0043] Figure 3 A schematic diagram of the telescopic inner tube, pivot tube, and support tube in the telescopic support device provided in this embodiment of the utility model;

[0044] Figure 4 An exploded view of the installation of the pivot connector and the telescopic outer tube in the telescopic support device provided in this embodiment of the utility model;

[0045] Figure 5 This is a schematic diagram of the overall structure of the mobile scaffolding provided in an embodiment of the present utility model.

[0046] Icons: 100-Telescopic outer tube; 110-Connecting pin; 200-Telescopic connector; 210-Mounting hole; 211-Snap-fit ​​protrusion; 220-Adjusting hole; 300-Telescopic inner tube; 310-Sliding groove; 320-Limiting pin; 330-Pin shaft hole; 400-Support tube; 500-Snap ring component; 510-Adjusting protrusion; 600-Hinge connector; 610-Connecting part; 611-Sealing groove; 612-Injection groove; 620-Connecting groove; 630-Insertion pin; 700-Sealing ring; 800-Sealing sleeve; 810-Connecting protrusion; 820-Injection hole; 900-Hinge tube. Detailed Implementation

[0047] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, the telescopic support device provided in this embodiment includes: a telescopic outer tube 100, a telescopic connector 200, and a telescopic inner tube 300; the telescopic connector 200 has a mounting hole 210, one end of the telescopic outer tube 100 is hinged to the support tube 400, and the other end of the telescopic outer tube 100 extends into the mounting hole 210, and the telescopic outer tube 100 can be connected to the telescopic connector 200 as a whole; one end of the telescopic inner tube 300 passes through the mounting hole 210 and extends into the telescopic outer tube 100, the inner diameter of the telescopic outer tube 100 is larger than the outer diameter of the telescopic inner tube 300, so that the telescopic inner tube 300 can telescopically move within the telescopic outer tube 100, thereby adjusting the overall length of the telescopic outer tube 100 and the telescopic inner tube 300.

[0052] The inner wall of the mounting hole 210 extends to form a snap-fit ​​protrusion 211, which may include multiple protruding ribs. The outer wall of the telescopic inner tube 300 is provided with a sliding groove 310. The opening direction of the sliding groove 310 faces the hole wall of the mounting hole 210. The length direction of the sliding groove 310 is parallel to the axial direction of the telescopic inner tube 300. The snap-fit ​​protrusion 211 extends into the sliding groove 310, so that the telescopic inner tube 300 cannot rotate along its own axial direction. Therefore, the telescopic inner tube 300 will not rotate when adjusting the length. A limit pin 320 is provided on the telescopic inner tube 300. The limit pin 320 is located on the side of the snap-fit ​​protrusion 211 near the telescopic outer tube 100. The limit pin 320 can abut against the snap-fit ​​protrusion 211 to restrict the telescopic inner tube 300 from coming out of the mounting hole 210 and can also limit the maximum extension of the telescopic inner tube 300.

[0053] The telescopic support device provided in this embodiment forms a snap-fit ​​protrusion 211 on the inner wall of the mounting hole 210, and a corresponding sliding groove 310 is provided on the outer wall of the telescopic inner tube 300. When the telescopic inner tube 300 moves telescopically, the snap-fit ​​protrusion 211 moves in the sliding groove 310. Since the snap-fit ​​protrusion 211 extends into the sliding groove 310, the telescopic inner tube 300 cannot rotate along its own axis, thus avoiding rotation of the telescopic inner tube 300 during telescopic movement. Furthermore, a limiting pin 320 is provided on the telescopic inner tube 300, and the snap-fit ​​protrusion 211 can abut against the limiting pin 320, thereby preventing the telescopic inner tube 300 from coming out of the mounting hole 210, avoiding the risk of the telescopic inner tube 300 falling off, and alleviating the technical problems of easy rotation and easy fall-off of the telescopic diagonal brace tube when it extends and retracts in the prior art.

[0054] In an optional embodiment, the telescopic support device provided in this embodiment further includes a snap ring member 500; the snap ring member 500 is configured to be sleeved on the telescopic connector 200; the snap ring member 500 is provided with an adjustment protrusion 510, the adjustment protrusion 510 is located on the inner side of the snap ring member 500, the telescopic connector 200 is provided with an adjustment hole 220, the adjustment hole 220 is used for the adjustment protrusion 510 to be inserted, when it is necessary to lock the telescopic inner tube 300, the adjustment protrusion 510 passes through the adjustment hole 220 and connects with the telescopic inner tube 300 to restrict the movement of the telescopic inner tube 300, thereby locking the telescopic inner tube 300.

[0055] In an optional embodiment, the telescopic inner tube 300 is provided with a pin hole 330, which is located at the bottom of the sliding groove 310. The limiting pin 320 passes through the pin hole 330. It should be noted that there are two pin holes 330, which are symmetrically arranged. The limiting pin 320 passes through the two pin holes 330, and the end of the limiting pin 320 protrudes from the two pin holes 330, ensuring that the limiting pin 320 can engage with the limiting protrusion.

[0056] In an optional embodiment, the telescopic support device further includes a connecting pin 110; the connecting pin 110 can pass through the telescopic connector 200 and the telescopic outer tube 100, thereby connecting the telescopic connector 200 and the telescopic outer tube 100 into a whole by means of the connecting pin 110.

[0057] like Figure 4 As shown, in an optional embodiment, the telescopic support device further includes a hinge connector 600; the hinge connector 600 is connected to the end of the telescopic outer tube 100 away from the telescopic connector 200, and the hinge connector 600 is used to rotatably connect with the support tube 400, so that the telescopic outer tube 100 can rotate around the hinge connector 600 relative to the support tube 400.

[0058] It should be noted that a rotating hole is provided on the hinge connector 600, and the rotating shaft passes through the hinge and the rotating hole on the support tube 400, thereby enabling the telescopic outer tube 100 to rotate relative to the support tube 400.

[0059] In an optional embodiment, the telescopic support device further includes a sealing ring 700; the hinge connector 600 has a connecting part 610 for connecting the telescopic outer tube 100. Specifically, the connecting part 610 is connected to the telescopic outer tube 100 by inserting a pin 630 through the telescopic outer tube 100 and the connecting part 610.

[0060] A sealing groove 611 is provided on the outer periphery of the connecting part 610. It should be noted that the sealing groove 611 is located at the end of the connecting part 610, that is, the sealing groove 611 is located at the end of the connecting part 610 near the telescopic outer tube 100. The sealing ring 700 is embedded in the sealing groove 611 to form the first seal.

[0061] In an optional embodiment, the telescopic support device further includes a sealing sleeve 800; the sealing sleeve 800 is sleeved on the connecting part 610, the sealing sleeve 800 has an annular structure, and the end face of the sealing sleeve 800 extends outward to form a connecting protrusion 810. The hinge connector 600 is provided with a connecting groove 620, the shape of the connecting protrusion 810 and the connecting groove 620 are adapted to each other, and the connecting protrusion 810 extends into the connecting groove 620 to restrict the sealing sleeve 800 from rotating along its own axis and prevent the sealing sleeve 800 from rotating relative to the connecting part 610.

[0062] The connecting part 610 is provided with an injection groove 612 between the connecting groove 620 and the sealing groove 611. The injection groove 612 includes a plurality of grooves connected in sequence. The sealing sleeve 800 is provided with an injection hole 820. After the sealing sleeve 800 is installed in place, the injection hole 820 is connected to the injection groove 612. Glue is injected into the injection groove 612 through the injection hole 820. The glue flows in the injection groove 612, thereby bonding the glue to the telescopic outer tube 100.

[0063] The double seal of the connecting protrusion 810 extending into the connecting groove 620 and the sealing ring 700 significantly improves the sealing reliability. The insertion pin 630 passes through the telescopic outer tube 100 and the connecting part 610, completely eliminating the risk of longitudinal movement and axial rotation of the hinge connector 600, so that the sealing sleeve 800 does not rely on external force to form a sealing state. No additional fixing structure is required during the glue injection operation, resulting in high installation efficiency.

[0064] In an optional embodiment, the telescopic support device further includes a pivot tube 900; one end of the pivot tube 900 is rotatably connected to the telescopic connector 200, and the other end of the pivot tube 900 is rotatably connected to the support tube 400, so as to facilitate the adjustment of the included angle between the telescopic outer tube 100 and the telescopic inner tube 300 relative to the support tube 400.

[0065] The telescopic support device provided in this embodiment has the following technical advantages, effectively solving the problems in the prior art through multi-faceted structural design:

[0066] 1. Anti-rotation function: By forming a snap-fit ​​protrusion 211 on the inner wall of the mounting hole 210 and providing a sliding groove 310 on the outer wall of the telescopic inner tube 300, the snap-fit ​​protrusion 211 can slide in the sliding groove 310 when the telescopic inner tube 300 moves along its axial direction. Since the snap-fit ​​protrusion 211 extends into the sliding groove 310, it restricts the rotational freedom of the telescopic inner tube 300 along its own axial direction, thereby avoiding unnecessary rotation of the telescopic inner tube 300 during telescopic movement, effectively alleviating the problem of easy rotation of the telescopic brace tube when adjusting its length in the prior art.

[0067] 2. Anti-detachment function: A limiting pin 320 is set on the telescopic inner tube 300. When the telescopic inner tube 300 moves in telescopic movement, the locking protrusion 211 not only slides in the sliding groove 310, but also resists the limiting pin 320, ensuring that even in extreme cases, the telescopic inner tube 300 will not fall out of the mounting hole 210, thereby avoiding the risk of the telescopic inner tube 300 falling out, significantly improving the safety and reliability of the device, and solving the problem of the telescopic inner tube 300 easily falling out in the prior art.

[0068] 3. The double sealing structure significantly improves sealing reliability: The cooperation between the connecting protrusion 810 and the connecting groove 620 forms the first layer of mechanical positioning seal by precisely embedding the connecting protrusion 810 into the connecting groove 620, ensuring a tight fit between the two parts. Combined with the use of the sealing ring 700, a double seal is formed, so that the sealing sleeve 800 does not rely on external force to form a sealing state. No additional fixing structure is required during the glue injection operation, resulting in high installation efficiency.

[0069] Based on the above, such as Figure 5As shown, the mobile scaffolding provided in this embodiment includes support pipes 400 and telescopic support devices; multiple support pipes 400 are arranged in an array, and each of the four corner support pipes 400 is connected to a telescopic support device.

[0070] Since the technical effects of the mobile scaffolding provided in this embodiment are the same as those of the telescopic support device provided in the above embodiments, they will not be described again here.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A telescopic support device, characterized in that, include: Telescopic outer tube (100), telescopic connector (200), and telescopic inner tube (300); The telescopic connector (200) has a mounting hole (210), one end of the telescopic outer tube (100) is used to be hinged to the support tube (400), the other end of the telescopic outer tube (100) extends into the mounting hole (210), and the telescopic outer tube (100) is configured to be connected to the telescopic connector (200). One end of the telescopic inner tube (300) extends into the telescopic outer tube (100) through the mounting hole (210), and the telescopic inner tube (300) is configured to be telescopically movable relative to the telescopic outer tube (100); The inner wall of the mounting hole (210) extends to form a snap-fit ​​protrusion (211), and the outer wall of the telescopic inner tube (300) is provided with a sliding groove (310). The snap-fit ​​protrusion (211) extends into the sliding groove (310) to restrict the telescopic inner tube (300) from rotating along its own axis. The telescopic inner tube (300) is provided with a limiting pin (320), which is located on the side of the snap-fit ​​protrusion (211) near the telescopic outer tube (100). The limiting pin (320) can abut against the snap-fit ​​protrusion (211) to prevent the telescopic inner tube (300) from coming out of the mounting hole (210).

2. The telescopic support device according to claim 1, characterized in that, The telescopic support device also includes a snap ring component (500); The snap ring member (500) is configured to be sleeved on the telescopic connector (200); The snap ring member (500) is provided with an adjustment protrusion (510), and the telescopic connector (200) is provided with an adjustment hole (220). The adjustment hole (220) is used for the adjustment protrusion (510) to be inserted so that the adjustment protrusion (510) is connected to the telescopic inner tube (300) to restrict the movement of the telescopic inner tube (300).

3. The telescopic support device according to claim 1, characterized in that, The telescopic inner tube (300) is provided with a pin hole (330), the pin hole (330) is located at the bottom of the sliding groove (310), and the limiting pin (320) passes through the pin hole (330).

4. The telescopic support device according to claim 1, characterized in that, The telescopic support device also includes a connecting pin (110); The connecting pin (110) is configured to pass through the telescopic connector (200) and the telescopic outer tube (100).

5. The telescopic support device according to claim 1, characterized in that, The telescopic support device also includes a pivot connector (600); The hinge connector (600) is connected to the end of the telescopic outer tube (100) away from the telescopic connector (200), and the hinge connector (600) is used to rotatably connect with the support tube (400).

6. The telescopic support device according to claim 5, characterized in that, The telescopic support device also includes a sealing ring (700); The hinge connector (600) has a connecting part (610) for connecting the telescopic outer tube (100); A sealing groove (611) is provided on the outer periphery of the connecting part (610), and the sealing ring (700) is embedded in the sealing groove (611).

7. The telescopic support device according to claim 6, characterized in that, The telescopic support device also includes a sealing sleeve (800); The sealing sleeve (800) is fitted onto the connecting part (610). The sealing sleeve (800) is provided with a connecting protrusion (810). The pivot connector (600) is provided with a connecting groove (620). The connecting protrusion (810) extends into the connecting groove (620) to restrict the sealing sleeve (800) from rotating along its own axis. The connecting part (610) located between the connecting groove (620) and the sealing groove (611) is provided with a glue injection groove (612), and the sealing sleeve (800) is provided with a glue injection hole (820), which communicates with the glue injection groove (612).

8. The telescopic support device according to claim 6, characterized in that, The telescopic support device also includes an insertion pin (630); The insertion pin (630) is configured to pass through the telescopic outer tube (100) and the connecting part (610).

9. The telescopic support device according to claim 1, characterized in that, The telescopic support device also includes a pivot tube (900); One end of the hinge tube (900) is rotatably connected to the telescopic connector (200), and the other end of the hinge tube (900) is rotatably connected to the support tube (400).

10. A mobile scaffold, characterized in that, Includes a support tube (400) and a telescopic support device as described in any one of claims 1-9; Multiple support tubes (400) are arranged in an array, and each of the four corner support tubes (400) is connected to a telescopic support device.

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