Adjustable tension rod and disc buckle scaffold

Abstract

This utility model discloses an adjustable tie rod and a disc-lock scaffold. The adjustable tie rod includes a tie rod body and a quick-connect coupling at the end of the tie rod body. The tie rod body is detachably connected to two adjacent uprights via the quick-connect coupling. The tie rod body includes: a telescopic outer rod with an axially extending inner cavity; a telescopic inner rod axially slidably inserted into the inner cavity of the telescopic outer rod; and a self-locking device, including a locking component at the sleeve end of the telescopic outer rod and a rack axially disposed on the outer wall of the telescopic inner rod. The locking component can selectively engage with any tooth groove of the rack. The beneficial effects of this utility model are: it enables adjustment of the length of the diagonal tie rod; and, in conjunction with the rack and locking component forming the self-locking device, it enables rapid adjustment and self-locking of the diagonal tie rod length, adapting to the erection and installation of scaffolding with non-standard modules; ensuring uniform stress distribution at connection nodes; reducing the risk of collapse accidents; saving costs; and improving installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building technology and relates to an adjustable tie rod and disc-lock scaffolding, especially an adjustable tie rod and disc-lock scaffolding that can freely adjust the length of the diagonal tie rod to adapt to non-standard modules. Background Technology

[0002] In the field of modern construction, modular scaffolding has become the mainstream support system for high-altitude operations due to its modular design, convenient installation, and safety and reliability. For ease of installation, all components of the scaffolding are typically standardized with fixed modules, meaning the lengths of the uprights, horizontal bars, and diagonal braces are fixed. This makes fixed-module scaffolding unusable in some scenarios (such as sloping surfaces or irregularly shaped building facades). To address this issue, traditional solutions require pre-calculating the lengths of each component and carrying multiple specifications of spare components on-site. The drawbacks of this are increased manufacturing and transportation costs, time-consuming adjustments, and low installation efficiency. For example, patent CN220226137U proposes a slope-mounted modular scaffolding system. While this application solves the problem of existing technologies being unable to directly erect scaffolding on sloping surfaces, it still suffers from the problem of diagonal braces not being able to extend and retract synchronously, resulting in mismatched brace lengths. Forcing the use of fixed-module diagonal braces leads to uneven stress at connection points, reducing the lateral stiffness of the scaffolding and increasing the risk of collapse.

[0003] Therefore, there is an urgent need for an adjustable tie rod and disc-lock scaffolding that can quickly adjust the length of the diagonal brace and improve installation efficiency. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this application proposes an adjustable tie rod and disc-lock scaffolding that can quickly adjust the length of the diagonal brace and improve installation efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The adjustable pull rod of this utility model includes a pull rod body and a quick-connect coupling disposed at the end of the pull rod body. The pull rod body is detachably connected to two adjacent uprights via the quick-connect coupling. The pull rod body includes:

[0007] Telescopic outer rod, which has an axially extending inner cavity;

[0008] The telescopic inner rod is axially slidably inserted into the inner cavity of the telescopic outer rod; and

[0009] The self-locking device includes a locking assembly disposed at the sleeve end of the telescopic outer rod and a rack disposed axially along the outer wall of the telescopic inner rod. The locking assembly can selectively engage with any tooth groove of the rack to lock the length of the rod body.

[0010] As a preferred embodiment of this application, the pole includes a pole body and a pole end connector detachably disposed at the top and / or bottom of the pole body for adjusting the height of the pole body. The pole body is provided with a plurality of fixed disc buckles spaced apart along the axial direction. The pole end connector includes an adjusting screw and at least one movable disc buckle. The adjusting screw is coaxially inserted into the top or bottom of the pole body and threadedly connected to a fastening nut at the end of the pole body. The movable disc buckle is sleeved on the outside of the adjusting screw and threadedly engaged with the adjusting screw.

[0011] As a preferred embodiment of this application, the fixed disc buckle and the movable disc buckle are provided with at least two sets of positioning holes distributed along the circumferential direction.

[0012] As a preferred embodiment of this application, the locking assembly includes a locking member hinged to the sleeve end of the telescopic outer rod and a limiting member for engaging the locking member with the rack. The locking member has an integrally formed first end and a second end. The first end is folded inward to form a lock head that can be engaged in a tooth groove. The limiting member connects the second end to the telescopic outer rod. The lock head is engaged in the corresponding tooth groove, and the locking between the telescopic outer rod and the telescopic inner rod is achieved through the limiting member.

[0013] As a preferred embodiment of this application, the limiting member is a spring connected between the second end of the engaging member and the telescopic outer rod. Under the elastic force of the spring, the locking head maintains a pressing tendency towards the rack and engages in the corresponding tooth groove, thereby achieving locking between the telescopic outer rod and the telescopic inner rod.

[0014] Preferably, the length of the rack is one-third of the total length of the telescopic inner rod. When the telescopic length needs to be adjusted, the second end of the self-locking device is pressed radially towards the telescopic outer rod, causing the lock head to disengage from the tooth groove. The depth of the telescopic inner rod inserted into the telescopic outer rod is adjusted, thereby adjusting the pull rod body to the required length. The self-locking device is then released. Under the elastic force of the spring, the lock head maintains a pressing tendency towards the rack and engages in the corresponding tooth groove, thus achieving locking between the telescopic outer rod and the telescopic inner rod.

[0015] As a preferred embodiment of this application, the limiting member is a pin disposed between the telescopic outer rod and the telescopic inner rod.

[0016] As a preferred embodiment of this application, the quick-connect coupling includes a connector, a buckle body hinged to the connector, and a positioning pin that engages with the buckle body. The connector is connected to the end of the pull rod body. The buckle body has an opening groove that engages with the disc buckle, and coaxial pin holes are provided on the two opposite groove walls of the opening groove. The disc buckle has an insertion hole, and the disc buckle is inserted into the opening groove. The quick-connect coupling and the disc buckle are locked together by the positioning pin that passes through the overlapping positioning holes and pin holes.

[0017] As a preferred embodiment of this application, the end of the pull rod body is directly connected to the connector in a fixed manner.

[0018] As a preferred embodiment of this application, the adjustable rod further includes a connecting screw, the inner walls of the free ends of the telescopic outer rod and the telescopic inner rod are machined with internal threads, one end of the connecting screw is inserted into the free end of the telescopic outer rod or the telescopic inner rod and threadedly connected to the internal threads, and the other end of the connecting screw is fixedly connected to the connector of the quick-connect coupling.

[0019] The present invention discloses an adjustable pull rod, comprising a pull rod body and a quick-connect coupling disposed at the end of the pull rod body. The pull rod body is detachably connected to a disc buckle on a pole via the quick-connect coupling. A connecting screw is fitted at the end of the pull rod body. One end of the connecting screw is inserted into the end of the pull rod body and threadedly connected thereto, and the other end of the connecting screw is fixedly connected to the quick-connect coupling.

[0020] As a preferred embodiment of this application, the adjustable pull rod further includes a connecting screw, the inner wall of the end of the pull rod body is machined with an internal thread, one end of the connecting screw is inserted into the end of the pull rod body and threadedly connected to the internal thread, and the other end of the connecting screw is fixedly connected to the connector of the quick-connect fitting.

[0021] The scaffolding described in this utility model includes multiple vertically arranged uprights, each upright having several fixed disc buckles spaced apart along the axial direction, and an adjustable tie rod detachably connected between the disc buckles of two adjacent uprights.

[0022] As a preferred embodiment of this application, the pole includes a pole body and an adjustable pole end connector detachably disposed at the top and / or bottom of the pole body for adjusting the height of the pole body. The adjustable pole end connector includes an adjusting screw and at least one pole end connector. The adjusting screw is coaxially inserted into the top or bottom of the pole body and threadedly connected to a fastening nut at the end of the pole body. The pole end connector is sleeved on the outside of the adjusting screw and threadedly engaged with the adjusting screw.

[0023] As a preferred embodiment of this application, the rod end connector includes a sleeve, the inner wall of which is provided with an internal thread that matches the external thread of the adjusting screw, and the outer wall of the sleeve is fixedly provided with a disc buckle for detachable connection with the free end of the crossbar or adjustable tie rod.

[0024] The beneficial effects of this utility model are: the length adjustment of the diagonal tie rod is achieved through the nested structure of the telescopic outer rod and the telescopic inner rod; in conjunction with the self-locking positioner composed of the rack and pinion and the locking assembly, the length adjustment and self-locking of the diagonal tie rod can be quickly realized to adapt to the erection and installation of scaffolding under non-standard modules; the connection nodes are subjected to uniform force, which improves the lateral stiffness of the frame, reduces the risk of collapse accidents, saves costs, and improves installation efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the adjustable pull rod according to an embodiment of the present invention.

[0026] Figure 2 This is a front view of an adjustable pull rod according to an embodiment of the present invention.

[0027] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0028] Figure 4 This is a schematic diagram of the adjustable pull rod according to another embodiment of the present invention.

[0029] Figure 5 This is a front view of an adjustable pull rod according to another embodiment of the present invention.

[0030] Figure 6 This is a structural schematic diagram of the scaffolding of this utility model.

[0031] Figure 7 This is a schematic diagram of the rod end connector installation.

[0032] The components are as follows: 1-Pull rod body; 11-Telescopic outer rod; 12-Telescopic inner rod; 13-Self-locking device; 131-Locking assembly; 132-Rack; 1311-Snap-fit ​​component; 1312-Limiting component; 2-Quick connector; 21-Snap fastener; 211-Open slot; 22-Positioning pin; 23-Connector; 3-Connecting screw; 4-Upright rod; 41-Upright rod body; 411-Fixed disc buckle; 412-Fasting nut; 42-Rod end connector; 421-Adjusting screw; 422-Modible disc buckle; 5-Horizontal bar. Detailed Implementation

[0033] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application.

[0034] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0035] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this application does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of implementation of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this application.

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application 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 application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The present application will be further described below with reference to specific embodiments, but the scope of protection of the present application is not limited thereto.

[0041] like Figures 1-4 As shown, the adjustable pull rod of this utility model includes a pull rod body 1 and a quick-connect connector 2 disposed at the end of the pull rod body 1. The pull rod body 1 is detachably connected to two adjacent uprights 4 through the quick-connect connector 2. The pull rod body 1 includes:

[0042] Telescopic outer rod 11, which has an axially extending inner cavity;

[0043] The telescopic inner rod 12 is axially slidably inserted into the inner cavity of the telescopic outer rod 11; and

[0044] The self-locking device 13 includes a locking assembly 131 disposed at the sleeve end of the telescopic outer rod 11 and a rack 132 disposed axially along the outer wall of the telescopic inner rod 12. The locking assembly 131 can selectively engage with any tooth groove of the rack 132 to lock the length of the rod body 1.

[0045] The upright 4 includes an upright body 41 and a pole end connector 42 detachably disposed at the top and / or bottom of the upright body 41 for adjusting the height of the upright body. The upright body 41 is provided with a plurality of fixed disc buckles 411 spaced apart along the axial direction. The pole end connector 42 includes an adjusting screw 421 and at least one movable disc buckle assembly 422. The adjusting screw 421 is coaxially inserted into the top or bottom of the upright body 41 and threadedly connected to a fastening nut 412 at the end of the upright body 41. The movable disc buckle 422 is sleeved on the outside of the adjusting screw 421 and threadedly engaged with the adjusting screw 421.

[0046] The fixed disc buckle 411 and the movable disc buckle 422 are provided with at least two sets of positioning holes distributed along the circumferential direction.

[0047] like Figure 3As shown, the locking assembly 131 includes a locking member 1311 hinged to the sleeve end of the telescopic outer rod 11 and a limiting member 1312 for engaging the locking member with the rack. The locking member 1311 has an integrally formed first end and a second end. The first end is folded inward to form a lock head that can be engaged in the tooth groove. The limiting member 1312 is connected between the second end and the telescopic outer rod 11. The lock head is engaged in the corresponding tooth groove, and the locking between the telescopic outer rod 11 and the telescopic inner rod 12 is achieved through the limiting member 1312.

[0048] like Figure 3 As shown, the limiting member 1312 is a spring connected between the second end of the engaging member 1311 and the telescopic outer rod 11. Under the action of the spring force, the locking head maintains the pressing tendency in the direction of the rack 132 and is engaged in the corresponding tooth groove to realize the locking between the telescopic outer rod 11 and the telescopic inner rod 12.

[0049] like Figure 1 and Figure 2 As shown, the length of the rack is one-third of the total length of the telescopic inner rod. The rack's tooth grooves are 2mm long, 2mm wide, and 3mm high. When the telescopic length needs to be adjusted, the second end of the self-locking device is pressed radially towards the telescopic outer rod 11, causing the lock head to disengage from the tooth groove. The depth of the telescopic inner rod 12 inserted into the telescopic outer rod 11 is adjusted, thereby adjusting the pull rod body 1 to the required length. The self-locking device is released, and under the elastic force of the spring, the lock head maintains a pressing tendency towards the rack 132 and engages in the corresponding tooth groove, thus achieving locking between the telescopic outer rod 11 and the telescopic inner rod 12.

[0050] In some embodiments of this application, the limiting member 1312 is a pin disposed between the telescopic outer rod 11 and the telescopic inner rod 12.

[0051] like Figure 3 As shown, the quick connector 2 includes a connector 23, a buckle body 21 hinged to the connector 23, and a positioning pin 22 that engages with the buckle body 21. The connector 23 is connected to the end of the pull rod body 1. The buckle body 21 has an opening groove 211 that engages with the fixed disc buckle 411, and coaxial pin holes are provided on the two opposite groove walls of the opening groove 211. The fixed disc buckle 411 and the movable disc buckle 422 are provided with insertion holes. The fixed disc buckle 411 or the movable disc buckle 422 is inserted into the opening groove 211, and the quick connector 2 is locked to the fixed disc buckle 411 or the movable disc buckle by the positioning pin 22 that passes through the overlapping positioning holes and pin holes.

[0052] like Figure 3 As shown, the end of the pull rod body 1 is directly connected to the connector 23 in a fixed manner.

[0053] A reinforcing angle plate 24 is provided between the connector 23 and the end of the tie rod body 1.

[0054] In some embodiments of this application, the adjustable rod further includes a connecting screw 3. The inner walls of the free ends of the telescopic outer rod 11 and the telescopic inner rod 12 are machined with internal threads. One end of the connecting screw 3 is inserted into the free end of the telescopic outer rod 11 or the telescopic inner rod 12 and is threadedly connected to the internal threads. The other end of the connecting screw 3 is fixedly connected to the connector 23 of the quick-connect joint 2.

[0055] like Figure 4 and Figure 5 As shown, the adjustable pull rod of this utility model includes a pull rod body 1 and a quick connector 2 disposed at the end of the pull rod body. The pull rod body 1 is detachably connected to the fixing disc buckle 411 on the upright 4 through the quick connector 2. A connecting screw 3 is assembled at the end of the pull rod body 1. One end of the connecting screw 3 is inserted into the end of the pull rod body 1 and threadedly connected thereto. The other end of the connecting screw 3 is fixedly connected to the quick connector 2.

[0056] like Figure 4 As shown, the adjustable pull rod also includes a connecting screw 3. The inner wall of the end of the pull rod body 1 is machined with an internal thread. One end of the connecting screw 3 is inserted into the end of the pull rod body 1 and threadedly connected to the internal thread. The other end of the connecting screw 3 is fixedly connected to the connector 23 of the quick connector 2.

[0057] like Figure 6 and Figure 7 As shown, the scaffolding of this utility model includes multiple vertically arranged uprights 4, with a horizontal bar 5 and the adjustable tie rod detachably connected between adjacent uprights 4.

[0058] The above embodiments are for illustrating the implementation schemes disclosed in this invention and should not be construed as limiting the invention. Furthermore, various modifications listed herein, as well as variations in the methods and compositions of the invention, will be apparent to those skilled in the art without departing from the scope and spirit of the invention. Although the invention has been specifically described in conjunction with various specific preferred embodiments, it should be understood that the invention should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the invention should be included within the scope of this invention.

Claims

1. An adjustable pull rod comprising a pull rod body (1) and a quick connector (2) arranged at the end of the pull rod body (1), the pull rod body (1) being detachably connected with two adjacent vertical rods (4) through the quick connector (2), characterized in that, The pull rod body (1) includes: Telescopic outer rod (11) having an axially extending inner cavity; The telescopic inner rod (12) is axially slidably inserted into the inner cavity of the telescopic outer rod (11); and The self-locking device (13) includes a locking assembly (131) disposed at the sleeve end of the telescopic outer rod (11) and a rack (132) axially disposed on the outer wall of the telescopic inner rod (12). The locking assembly (131) can selectively engage with any tooth groove of the rack (132) to lock the length of the rod body (1). The locking assembly (131) includes a locking member (1311) hinged to the sleeve end of the telescopic outer rod (11) and a limiting member (1312) for engaging the locking member with the rack. The locking member (1311) has an integrally formed first end and a second end. The first end is folded inward to form a lock head that can be engaged in the tooth groove. The second end is connected to the limiting member (1312) between the telescopic outer rod (11) and the telescopic inner rod (12). The lock head engages in the corresponding tooth groove and the limiting member (1312) locks the telescopic outer rod (11) and the telescopic inner rod (12).

2. The adjustable drawbar of claim 1, wherein, The limiting member (1312) is a spring connected between the second end of the engaging member (1311) and the telescopic outer rod (11). Under the action of the spring force, the locking head maintains the pressing tendency towards the rack (132) and is engaged in the corresponding tooth groove to realize the locking between the telescopic outer rod (11) and the telescopic inner rod (12).

3. The adjustable drawbar of claim 1, wherein, The limiting member (1312) is a pin installed between the telescopic outer rod (11) and the telescopic inner rod (12).

4. The adjustable drawbar of claim 1, wherein, The pole (4) includes a pole body (41) and a pole end connector (42) detachably disposed at the top and / or bottom of the pole body for adjusting the height of the pole body. The pole body (41) is provided with several fixed disc buckles (411) spaced apart along the axial direction. The pole end connector (42) includes an adjusting screw (421) and at least one movable disc buckle (422). The adjusting screw (421) is coaxially inserted into the top or bottom of the pole body (41) and threadedly connected to the fastening nut (412) at the end of the pole body. The movable disc buckle (422) is sleeved on the outside of the adjusting screw (421) and threadedly engaged with the adjusting screw (421).

5. The adjustable drawbar of claim 4, wherein, The fixed disc buckle (411) and the movable disc buckle (422) are provided with at least two sets of positioning holes distributed along the circumferential direction.

6. The adjustable drawbar of claim 5, wherein, The quick connector (2) includes a connector (23), a buckle body (21) hinged to the connector (23), and a positioning pin (22) that is inserted into the buckle body (21). The connector (23) is connected to the end of the pull rod body (1). The buckle body (21) is provided with an opening groove (211) that engages with a fixed disc buckle (411) or a movable disc buckle (422). The two groove walls of the opening groove (211) are provided with coaxial pin holes. The fixed disc buckle (411) is provided with an insertion hole. The disc buckle (411) is inserted into the opening groove (211), and the quick connector (2) is locked to the fixed disc buckle (411) or the movable disc buckle (422) by the positioning pin (22) that passes through the overlapping positioning hole and the pin hole.

7. The adjustable drawbar of claim 2, wherein, The end of the pull rod body (1) is directly connected to the connector (23) in a fixed manner.

8. The adjustable drawbar of claim 1, wherein, It also includes a connecting screw (3), the inner walls of the free ends of the telescopic outer rod (11) and the telescopic inner rod (12) are machined with internal threads, one end of the connecting screw (3) is inserted into the free end of the telescopic outer rod (11) or the telescopic inner rod (12) and threadedly connected with the internal threads, and the other end of the connecting screw (3) is fixedly connected to the connector (23) of the quick connector (2).

9. A disc-scaffolding, comprising a plurality of vertical erected uprights, said uprights (4) being provided with a plurality of discs (411) axially spaced apart, characterized in that, A crossbar (5) and an adjustable tie rod as described in any one of claims 1 to 8 are detachably connected between the disc buckles of two adjacent uprights.

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