Tensioning device and stent having the same

Abstract

The utility model provides a kind of tensioner and support with it, wherein, tensioner, to tighten first be pulled member and second be pulled member, tensioner includes: first connecting frame, with first be pulled member connection;Connecting seat, movably set;Mounting seat, set on second be pulled member, the first end of connecting seat and mounting seat guide cooperation;First transmission part, the first end of first transmission part and connecting seat screw cooperation, the second end of first transmission part and mounting seat screw cooperation;Operating mechanism, with first transmission part driving cooperation, to make first transmission part drive connecting seat move towards the direction close to mounting seat, the second end of connecting seat can pull first connecting frame move towards the direction close to mounting seat.The technical scheme of the application effectively solves the problem that external auxiliary tool is needed when first be pulled member and second be pulled member are connected in the related art.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, and more specifically, to a tensioning device and a bracket having the same. Background Technology

[0002] A height-adjustable desk, also known as a standing desk or upright workbench, allows the user to adjust the desktop height to suit whether they are standing or sitting. Height-adjustable desks provide a more flexible work environment, reducing the physical discomfort and health problems that can result from prolonged sitting. A typical height-adjustable desk consists of interconnected legs, uprights, side panels, and a crossbeam.

[0003] In related technologies, the side plate and the crossbeam are generally connected by multiple bolts. In order to make the connection between the side plate and the crossbeam structure more stable, that is, to ensure that the stress applied by the bolts meets a certain range, external auxiliary tools, such as wrenches, are used to tighten the bolts. Utility Model Content

[0004] The main objective of this invention is to provide a tensioning device and a bracket having the same, in order to solve the problem in the related art that external auxiliary tools are required when connecting the first tensioned member and the second tensioned member.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tensioning device is provided for tensioning a first tensioned member and a second tensioned member. The tensioning device includes: a first connecting frame connected to the first tensioned member; a connecting seat movably disposed thereon; a mounting seat disposed on the second tensioned member, with a first end of the connecting seat guidingly engaging with the mounting seat; a first transmission member, with a first end threadedly engaging with the connecting seat and a second end threadedly engaging with the mounting seat; and an operating mechanism drivingly engaging with the first transmission member to cause the first transmission member to drive the connecting seat to move toward a direction closer to the mounting seat, and the second end of the connecting seat being able to pull the first connecting frame to move toward a direction closer to the mounting seat.

[0006] Furthermore, the operating mechanism includes a rotating seat, a second transmission member, and a stop. The second transmission member is disposed on the outer periphery of the first transmission member. The rotating seat has a stationary state relative to the second transmission member and an active state relative to the second transmission member. The stop is disposed between the rotating seat and the second transmission member and has a locked state. When the stop is in the locked state, the rotating seat is in a stationary state.

[0007] Furthermore, the second transmission component includes a transmission ring and a plurality of first teeth disposed on the outer periphery of the transmission ring. The stop part includes a pawl and a force-applying component. The first end of the pawl is rotatably disposed on the rotating seat, and the second end of the pawl is inserted into any two adjacent first teeth among the plurality of first teeth. The force-applying component is disposed on the pawl or between the rotating seat and the pawl, so that the second end of the pawl is held in a position abutting against the second transmission component.

[0008] Furthermore, the rotating seat is provided with a receiving space, the second transmission component is disposed in the receiving space, the side wall of the rotating seat is provided with a first opening, and the operating mechanism also has a first driving state of rotating in a first preset direction. When the operating mechanism is in the first driving state, the second end of the pawl passes through the first opening and extends into the receiving space, and abuts against one of the first teeth of the plurality of first teeth, so that the first transmission component drives the connecting seat to move toward the direction close to the mounting seat.

[0009] Furthermore, a second opening is provided on the side wall of the rotating seat, and the operating mechanism also has a second driving state of rotating in a second preset direction. The second preset direction is opposite to the first preset direction. When the operating mechanism is in the second driving state, the second end of the pawl passes through the second opening and extends into the receiving space, and abuts against one of the first teeth of the plurality of first teeth, so that the first transmission member drives the connecting seat to move away from the mounting seat.

[0010] Furthermore, the tensioning device also includes a fixing member, which connects the first transmission member and the rotating seat. The rotating seat is provided with a first connecting hole, and the first transmission member is provided with a second connecting hole. The fixing member passes through the first connecting hole and the second connecting hole. And / or, the tensioning device also includes an elastic member, which is disposed between the fixing member and the rotating seat to keep the rotating seat in abutting position with the mounting base.

[0011] Furthermore, the tensioning device also includes a second connecting frame and a third transmission component. The second connecting frame is disposed on the first tensioned component. One end of the third transmission component is movably disposed on the second connecting frame, and the other end of the third transmission component is connected to the third tensioned component. The position of the third tensioned component is adjustablely disposed on the second tensioned component. The first connecting frame is disposed on the third tensioned component. And / or, a first anti-rotation plane is provided on the inner wall of the transmission ring. The first transmission component includes a transmission column, and a second anti-rotation plane is provided on the transmission column. The first anti-rotation plane and the second anti-rotation plane are in anti-rotation engagement.

[0012] Furthermore, the rotating seat is provided with a receiving space, and the second transmission component is disposed in the receiving space. The second transmission component includes a transmission ring and a plurality of first teeth disposed on the outer periphery of the transmission ring. The stop part includes a plurality of second teeth disposed on the rotating seat and located in the receiving space. The plurality of second teeth are disposed corresponding to the plurality of first teeth, and a second tooth is disposed between any two adjacent first teeth.

[0013] According to another aspect of the present invention, a bracket is provided, including a first tensioned member, a second tensioned member, and a tensioning device. The first tensioned member is a side plate structure, the second tensioned member is a crossbeam structure, and the tensioning device is the aforementioned tensioning device.

[0014] Furthermore, the side plate structure includes a horizontal plate and an insert plate. The horizontal plate is located at the top of the beam structure. The first end of the insert plate is connected to the horizontal plate, and the second end of the insert plate is lower than the horizontal plate. The beam structure is provided with a slot, and the insert plate is inserted into the slot to restrict the movement of the horizontal plate along the direction from the bottom to the top of the beam structure.

[0015] Furthermore, the side plate structure also includes a stop plate, which cooperates with the side stop of the crossbeam structure, and / or, the side plate structure also includes a vertical plate connected to the cross plate, which is disposed at the end of the crossbeam structure.

[0016] The present invention provides a tensioning device for tensioning a first tensioned member and a second tensioned member. The tensioning device includes a first connecting frame, a connecting seat, a mounting seat, a first transmission member, and an operating mechanism. The operating mechanism drives the first transmission member to rotate, which in turn drives the connecting seat to move closer to the mounting seat. The connecting seat then applies a force to the first tensioned member in a direction closer to the second tensioned member, thereby connecting the first and second tensioned members. In other words, the operation mechanism drives the first transmission member to rotate, avoiding the need for external auxiliary tools. The first end of the connecting seat is guided and engaged with the mounting seat, allowing the connecting seat to move relative to the mounting seat in the direction from the connecting seat to the mounting seat. Therefore, the present invention effectively solves the problem in related technologies where external auxiliary tools are required to connect the first and second tensioned members. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A three-dimensional structural schematic diagram of a tensioning device according to the present invention is shown;

[0019] Figure 2 It shows Figure 1 A cross-sectional schematic diagram of the tensioning device;

[0020] Figure 3 It shows Figure 2 A partially enlarged schematic diagram of point A of the tensioning device;

[0021] Figure 4 It shows Figure 1 A schematic diagram of the exploded structure of the tensioning device;

[0022] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the stop part of the tensioning device;

[0023] Figure 6 An exploded structural diagram of Embodiment 2 of the tensioning device according to the present invention is shown;

[0024] Figure 7 A three-dimensional structural schematic diagram of a first embodiment of the bracket according to the present invention is shown;

[0025] Figure 8 It shows Figure 7 A schematic diagram of the exploded structure of the stent;

[0026] Figure 9 It shows Figure 8 A three-dimensional structural diagram of the support structure from another perspective;

[0027] Figure 10 It shows Figure 7 A three-dimensional structural diagram showing the connection between the crossbeam structure and the side plate structure of the bracket.

[0028] Figure 11 It shows Figure 7 A three-dimensional structural diagram of the third tensioning member of the bracket.

[0029] The above figures include the following reference numerals:

[0030] 1. First tensioned component; 2. Second tensioned component; 10. First connecting frame; 20. Connecting seat; 30. Mounting seat; 40. First transmission component; 41. Transmission column; 411. Second anti-rotation plane; 42. Second connecting hole; 50. Operating mechanism; 51. Rotating seat; 511. Accommodating space; 512. First opening; 513. Second opening; 514. First connecting hole; 52. Second transmission component; 521. Transmission ring; 5211. First anti-rotation plane; 522. First tooth; 53. Stop; 531. Pawl; 5311. Racket tooth ; 53111, First tooth tip; 53112, Second tooth tip; 532, Second tooth; 54, Handle part; 60, Fixing component; 70, Second connecting frame; 80, Third transmission component; 90, Elastic component; 100, Side plate structure; 101, Horizontal plate; 102, Insert plate; 103, Stop plate; 104, Vertical plate; 110, Horizontal beam structure; 111, Slot; 112, First square tube; 1121, First slot; 113, Second square tube; 114, Third third tube; 120, Third tensioned component; 130, First mating component; 140, Limiting component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] like Figure 1 and Figure 2As shown, the tensioning device of Embodiment 1 is used to tension the first tensioned member 1 and the second tensioned member 2. The tensioning device includes: a first connecting frame 10, a connecting seat 20, a mounting seat 30, a first transmission member 40, and an operating mechanism 50. The first connecting frame 10 is connected to the first tensioned member 1. The connecting seat 20 is movably disposed. The mounting seat 30 is disposed on the second tensioned member 2, and the first end of the connecting seat 20 is guidedly engaged with the mounting seat 30. The first end of the first transmission member 40 is threadedly engaged with the connecting seat 20, and the second end of the first transmission member 40 is threadedly engaged with the mounting seat 30. The operating mechanism 50 is driven by the first transmission member 40, so that the first transmission member 40 drives the connecting seat 20 to move toward the mounting seat 30, and the second end of the connecting seat 20 can pull the first connecting frame 10 to move toward the mounting seat 30.

[0035] Applying the technical solution of Embodiment 1, the tensioning device is used to tension the first tensioned member 1 and the second tensioned member 2. The tensioning device includes a first connecting frame 10, a connecting seat 20, a mounting seat 30, a first transmission member 40, and an operating mechanism 50. The operating mechanism 50 can drive the first transmission member 40 to rotate, thereby driving the connecting seat 20 to move towards the mounting seat 30. The connecting seat 20 can then apply a force to the first tensioned member 1 towards the second tensioned member 2, thus connecting the first tensioned member 1 and the second tensioned member 2. That is, by driving the first transmission member 40 to rotate through the operating mechanism 50, the use of external auxiliary tools to drive the first transmission member 40 to rotate is avoided. The first end of the connecting seat 20 is guided and engaged with the mounting seat 30, allowing the connecting seat 20 to move relative to the mounting seat 30 in the direction from the connecting seat 20 to the mounting seat 30. Therefore, the technical solution of Embodiment 1 effectively solves the problem in related technologies where external auxiliary tools are required to connect the first tensioned member 1 and the second tensioned member 2.

[0036] Specifically, the external auxiliary tool can be a wrench.

[0037] It should be noted that the mounting base 30 is fixedly mounted on the second tensioned member 2. Specifically, the mounting base 30 can be connected to the second tensioned member 2 by welding or by bolts.

[0038] The first connecting frame 10 includes a first upright plate, a second upright plate, and a third upright plate connected between the first and second upright plates. The first and third upright plates are spaced apart and are both connected to the first tensioned member 1. The connecting seat 20 is connected to the second upright plate.

[0039] The connecting seat 20 includes a first limiting plate, a first connecting rod, and a connecting cylinder. The first connecting rod is connected between the first limiting plate and the connecting cylinder. A mounting groove is provided on the second upright plate, and the first connecting rod passes through the mounting groove. The first limiting plate is located between the first upright plate, the second upright plate, and the third upright plate, and the first limiting plate and the second upright plate are in a limiting fit. The connecting cylinder is threaded into the first transmission component 40.

[0040] The opening of the mounting slot is positioned facing the top of the second tensioned member 2.

[0041] The tensioning device also includes a guide section, which comprises a guide plate and a guide surface. One of the guide plate and the guide surface is disposed on a connecting seat, and the other of the guide plate and the guide surface is disposed on a mounting seat. Multiple guide sections are provided, spaced apart along the circumferential direction of the first transmission member.

[0042] In Embodiment 1, the guide surface is disposed on the connecting seat 20, and the guide plate is disposed on the mounting seat. In other embodiments, the guide surface is disposed on the mounting seat, and the guide plate is disposed on the connecting seat 20.

[0043] Mounting base 30 includes a mounting cylinder with threads on its inner wall. The first transmission member 40 engages with the threads on the inner wall of the mounting cylinder. A guide plate is located at one end of the mounting cylinder near the connecting base 20. The threads on the inner wall of the mounting cylinder are left-hand threads.

[0044] like Figure 1 as well as Figures 3 to 5 As shown, in Embodiment 1, the operating mechanism 50 includes a rotating seat 51, a second transmission member 52, and a stop portion 53. The second transmission member 52 is disposed on the outer periphery of the first transmission member 40. The rotating seat 51 has a stationary state relative to the second transmission member 52 and an active state relative to the second transmission member 52. The stop portion 53 is disposed between the rotating seat 51 and the second transmission member 52 and has a locked state. When the stop portion 53 is in the locked state, the rotating seat 51 is in a stationary state relative to the second transmission member 52. When the rotating seat 51 rotates, it can drive the second transmission member 52 to rotate, and the second transmission member 52 can drive the first transmission member 40 to rotate. The stop portion 53 also has a slipping state. When the stop portion 53 is in the slipping state, the rotating seat 51 is in an active state relative to the second transmission member 52. The rotating seat 51 can move relative to the second transmission member 52, thereby adjusting the position of the rotating seat 51 relative to the second transmission member 52.

[0045] The mounting base 30 also includes a second limiting plate, which is located at the end of the mounting cylinder away from the connecting base, and the second limiting plate cooperates with the stop of the second tensioned member 2.

[0046] like Figure 3 and Figure 4 As shown, in Embodiment 1, the second transmission member 52 includes a transmission ring 521 and a plurality of first teeth 522 disposed on the outer periphery of the transmission ring 521. The stop part 53 includes a pawl 531 and a force-applying member. The first end of the pawl 531 is rotatably disposed on the rotating seat 51, and the second end of the pawl 531 is inserted into any two adjacent first teeth 522. The force-applying member is disposed on the pawl 531 or between the rotating seat 51 and the pawl 531, so that the second end of the pawl 531 is held in a position abutting against the second transmission member 52. When the rotating seat 51 rotates, it can drive the pawl 531 to rotate, which in turn drives the first teeth 522 to rotate, which in turn drives the transmission ring 521 to rotate, so that the transmission ring 521 can drive the first transmission member 40 to rotate.

[0047] The force-applying component can be a magnet or a spring, with the two ends of the spring connected to the pawl 531 and the rotating seat 51, respectively.

[0048] The first end of the pawl 531 is connected to the rotating seat 51 by a screw. The screw can limit the movement of the pawl 531 and the rotating seat 51 in the axial direction of the rotating seat 51, but does not restrict the rotation of the pawl 531.

[0049] It should be noted that the rotating seat 51 has a stationary state relative to the second transmission member 52, meaning that the stop part 53 abuts against the second transmission member 52 and the stop part 53 does not slide relative to the second transmission member 52. That is, the pawl 531 abuts against one of the multiple first teeth 522 and the pawl 531 will not move between the two first teeth 522.

[0050] When the stop part 53 is in a slipping state, the pawl 531 can slide on the outer surface of the multiple first teeth 522.

[0051] like Figure 3 and Figure 4As shown, in Embodiment 1, a receiving space 511 is provided inside the rotating seat 51, and a second transmission member 52 is provided inside the receiving space 511. A first opening 512 is provided on the side wall of the rotating seat 51. The operating mechanism 50 also has a first driving state of rotating in a first preset direction. When the operating mechanism 50 is in the first driving state, the second end of the pawl 531 passes through the first opening 512 and extends into the receiving space 511, and abuts against one of the first teeth 522 of the plurality of first teeth 522, so that the first transmission member 40 drives the connecting seat 20 toward the direction close to the mounting seat 30. The first opening 512 can avoid the pawl 531, and the second end of the pawl 531 can extend into the receiving space 511 and abut against one of the first teeth 522. This makes it convenient for the pawl 531 to drive the transmission ring 521 to rotate through the first tooth 522 when the operating mechanism 50 rotates in the first preset direction. In turn, the transmission ring 521 can drive the connecting seat 20 to move toward the mounting seat 30 through the first transmission member 40.

[0052] It should be noted that the second end of the pawl 531 is provided with a ratchet 5311, which includes a first tooth tip 53111. When the operating mechanism 50 rotates in the first preset direction, the first tooth tip 53111 abuts against the first tooth 522.

[0053] like Figure 4 As shown, in Embodiment 1, a second opening 513 is also provided on the side wall of the rotating seat 51. The operating mechanism 50 also has a second driving state that rotates in a second preset direction, which is opposite to the first preset direction. When the operating mechanism 50 is in the second driving state, the second end of the pawl 531 passes through the second opening 513 and extends into the receiving space 511, abutting against one of the first teeth 522, so that the first transmission member 40 drives the connecting seat 20 to move away from the mounting seat 30. The second opening 513 can avoid the pawl 531, so that the second end of the pawl 531 can extend into the receiving space 511 and abut against one of the first teeth 522, so that when the operating mechanism 50 rotates in the second preset direction, the pawl 531 drives the transmission ring 521 to rotate through the first tooth 522, and the transmission ring 521 can drive the connecting seat 20 to move away from the mounting seat 30 through the first transmission member 40.

[0054] It should be noted that the second end of the pawl 531 is also provided with a second tooth tip 53112, and the first tooth tip 53111 and the second tooth tip 53112 are respectively provided on opposite sides of the pawl 531. When the operating mechanism 50 rotates along the second preset direction, the second tooth tip 53112 abuts against the first tooth 522.

[0055] The second opening 513 is disposed adjacent to the first opening 512. When the second end of the stop 53 moves between the first opening 512 and the second opening 513, the second end of the stop 53 is pushed, causing the stop 53 to rotate relative to the rotating seat 51, thereby realizing the movement of the second end of the stop 53 between the first opening 512 and the second opening 513.

[0056] A push rod is provided at the second end of the stop part 53, which facilitates the rotation of the stop part 53 by pushing the push rod.

[0057] The ratchet 5311 has a unidirectional force transmission characteristic. Specifically, when the second end of the stop 53 extends into the receiving space 511 through the first opening 512, the rotating seat 51 rotates in the first preset direction, causing the second transmission member 52 to rotate. The rotating seat 51 is in a stationary state. When the rotating seat 51 rotates in the second preset direction, the ratchet 5311 slips on the transmission ring 521, allowing the rotating seat 51 to rotate relative to the second transmission member 52. The second transmission member 52 is stationary, and the rotating seat 51 is in a movable state. When the second end of the stop 53 extends into the receiving space 511 through the second opening 513, the rotating seat 51 rotates in the second preset direction, causing the second transmission member 52 to rotate. The rotating seat 51 is in a stationary state. When the rotating seat 51 rotates in the first preset direction, the ratchet 5311 slips on the transmission ring 521, allowing the rotating seat 51 to rotate relative to the second transmission member 52. The second transmission member 52 is stationary, and the rotating seat 51 is in a movable state.

[0058] like Figure 4 As shown, in Embodiment 1, a first anti-rotation plane 5211 is provided on the inner wall of the transmission ring 521. The first transmission member 40 includes a transmission column 41, and a second anti-rotation plane 411 is provided on the transmission column 41. The first anti-rotation plane 5211 and the second anti-rotation plane 411 are in anti-rotation engagement. With the above arrangement, no relative rotation will occur between the transmission column 41 and the transmission ring 521, which facilitates the transmission ring 521 driving the transmission column 41 to rotate.

[0059] It should be noted that threads are provided on the side walls at both ends of the transmission column 41.

[0060] The inner wall of the connecting cylinder is threaded, and the transmission pin 41 passes through the connecting cylinder. The thread on the inner wall of the connecting cylinder is a right-hand thread.

[0061] like Figure 4 As shown, in Embodiment 1, the rotating base 51 is provided with a first connecting hole 514, the first transmission member 40 is provided with a second connecting hole 42, and the tensioning device also includes a fixing member 60, which passes through the first connecting hole 514 and the second connecting hole 42. The fixing member 60 can connect the rotating base 51 and the first transmission member 40.

[0062] It should be noted that the second connecting hole 42 is located on the end face of the second end of the transmission column 41.

[0063] Fastener 60 is a fastener.

[0064] like Figure 1 as well as Figures 9 to 11 As shown, in Embodiment 1, the tensioning device further includes a second connecting frame 70 and a third transmission member 80. The second connecting frame 70 is disposed on the first tensioned member 1. One end of the third transmission member 80 is movably disposed on the second connecting frame 70, and the other end of the third transmission member 80 is connected to the third tensioned member 120. The third tensioned member 120 is positionally adjustable on the second tensioned member 2. The first connecting frame 10 is disposed on the third tensioned member 120. When the connecting seat 20 drives the first connecting frame 10 to move toward the mounting seat 30, the first connecting frame 10 can drive the third tensioned member 120 to move toward the mounting seat 30. Consequently, the third tensioned member 120 can drive the second connecting frame 70 to move toward the mounting seat 30. Consequently, the second connecting frame 70 can drive the first tensioned member 1 to move toward the mounting seat 30, thereby achieving the connection between the second tensioned member 2 and the first tensioned member 1, and also achieving the connection between the third tensioned member 120 and the first tensioned member 1.

[0065] It should be noted that the second connecting frame 70 has a similar structure to the first connecting frame 10. When the second connecting frame 70 is connected to the second tensioned member 2, the mounting groove on the second upright plate of the second connecting frame 70 has a different orientation than the mounting groove on the second upright plate of the first connecting frame 10.

[0066] The third transmission component 80 includes a bolt. The bolt passes through a mounting groove on the second vertical plate of the second connecting bracket 70.

[0067] The tensioning device also includes a protective pad, which is a rubber pad, disposed around the outer periphery of the third transmission member 80 to prevent friction between the third transmission member 80 and the second connecting frame 70. The protective pad is located in a mounting groove on the second vertical plate of the second connecting frame 70.

[0068] It should be noted that when the third tensioning member 120 is not provided, the first tensioning member 1 can be a crossbeam structure, and the second tensioning member 2 can be a side plate structure or a bottom box.

[0069] like Figure 6 As shown, in Embodiment 1, the tensioning device further includes an elastic element 90, which is disposed between the fixing member 60 and the rotating seat 51 to keep the rotating seat 51 in abutting position against the mounting base 30. The elastic element 90 can apply pressure to the rotating seat 51, so that the rotating seat 51 can remain in abutting position against the mounting base 30.

[0070] The elastic element 90 is a compression spring or a tension spring.

[0071] It should be noted that the rotating seat 51 can move away from the mounting seat 30 in the axial direction of the rotating seat 51, which facilitates the adjustment of the relative position between the rotating seat 51 and the transmission ring 521. The elastic element 90 is provided so that after the rotating seat 51 moves away from the mounting seat 30 in the axial direction of the rotating seat 51, under the action of the elastic force of the elastic element 90, the rotating seat 51 moves towards the mounting seat 30 in the axial direction of the rotating seat 51.

[0072] It should be noted that the tensioning device also includes a limiting member 140, and the operating mechanism also includes a handle portion 54. The limiting member 140 is disposed on the second tensioned member 2. The rotating seat 51 has a stopped state in which the handle portion 54 is stopped by the limiting member 140. The handle portion 54 is rotatably disposed, and the rotation axis of the handle portion 54 is perpendicular to the rotation axis of the rotating seat 51. The handle portion 54 makes it easier to drive the rotating seat 51 to rotate. When the handle portion 54 is stopped by the limiting member 140, the rotating seat 51 and the second tensioned member 2 remain relatively stationary, and the second transmission member 52 will not rotate. The rotatable handle portion 54 allows the handle portion 54 to be lifted when it is necessary to drive the rotating seat 51 to rotate, making it easier to operate. When the handle portion 54 is not in use, it can be placed on the rotating seat 51, reducing the space occupied by the operating mechanism 50. When the handle 54 is placed inside the limiting member 140, the rotating seat 51 can also be prevented from rotating again.

[0073] It should be noted that the limiting member 140 is a limiting clamp. In other embodiments, the limiting member 140 may also be a magnet.

[0074] The handle portion 54 includes a second connecting rod and a third connecting rod connected in sequence. The second connecting rod is connected to the rotating seat 51, and the third connecting rod is connected to the second connecting rod. The third connecting rod is in a stop engagement with the limiting member 140. The axis of the third connecting rod is perpendicular to the axis of the second connecting rod. The handle portion 54 also includes a fourth connecting rod and a fifth connecting rod. The second connecting rod is connected between the fourth connecting rod and the rotating seat 51, and the fifth connecting rod is parallel to and spaced apart from the second connecting rod. The fifth connecting rod is the gripping end of the handle portion 54.

[0075] The difference between Embodiment 2 and Embodiment 1 is that, in Embodiment 1, power is transmitted between the rotating seat 51 and the second transmission member 52 via a pawl 531, while in Embodiment 2, the stop part 53 includes multiple second teeth 532 disposed on the rotating seat 51 and located within the receiving space 511. That is, the transmission between the rotating seat 51 and the second transmission member 52 is achieved through first teeth 522 and second teeth 532. The inner wall of the rotating seat 51 is an internal gear ring, and the transmission ring 521 of the second transmission member 52 is an external gear ring. This makes the operation of the rotating seat 51 more precise.

[0076] like Figure 6 As shown, in Embodiment 1, the second transmission member 52 includes a transmission ring 521 and a plurality of first teeth 522 disposed on the outer periphery of the transmission ring 521. The stop part 53 includes a plurality of second teeth 532 disposed on the rotating seat 51 and located within the receiving space 511. The plurality of second teeth 532 are correspondingly disposed to the plurality of first teeth 522, and a second tooth 532 is disposed between any two adjacent first teeth 522. Through the plurality of first teeth 522 and the plurality of second teeth 532, the transmission between the rotating seat 51 and the transmission ring 521 can be realized.

[0077] In Embodiment 2, the rotating seat 51 can move relative to the second transmission member 52 in the axial direction of the first transmission member. This facilitates adjusting the relative position of the rotating seat 51 and the second transmission member 52 in the circumferential direction of the first transmission member. After the connecting seat tightens the second tensioned member 2 and is in a compressed state, if the handle portion 54 and the limiting member 140 cannot be aligned, the rotating seat 51 can be moved in the axial direction of the first transmission member to separate the rotating seat 51 from the second transmission member 52. Then, the rotating seat 51 can be moved to align the handle portion 54 with the limiting member 140.

[0078] like Figure 1 , Figure 2 as well as Figure 7 As shown, the bracket in Embodiment 1 includes a first tensioned member 1, a second tensioned member 2, and a tensioning device. The first tensioned member 1 is a side plate structure 100, the second tensioned member 2 is a crossbeam structure 110, and the tensioning device is the aforementioned tensioning device. The operating mechanism 50 can drive the first transmission member 40 to rotate, which in turn drives the connecting seat 20 to move closer to the mounting seat 30. This allows the connecting seat 20 to drive the first connecting frame 10 to move closer to the mounting seat 30, which in turn drives the first tensioned member 1 to move closer to the mounting seat 30. This achieves the connection between the first tensioned member 1 and the second tensioned member 2, avoiding the use of external auxiliary tools to drive the first transmission member 40 to rotate in the prior art. The bracket with the aforementioned tensioning device also has the aforementioned advantages.

[0079] Specifically, the support frame is a height-adjustable table.

[0080] The support also includes a third tensioning component 120, which is a base box containing a motor to drive the extension and retraction of the column structure. The column structure is located at the bottom of the base box.

[0081] like Figures 8 to 10 As shown, in Embodiment 1, the side plate structure 100 includes a horizontal plate 101 and an insert plate 102. The horizontal plate 101 is disposed on the top of the beam structure 110. The first end of the insert plate 102 is connected to the horizontal plate 101, and the second end of the insert plate 102 is lower than the horizontal plate 101. The beam structure 110 is provided with a slot 111, and the insert plate 102 is inserted into the slot 111 to restrict the movement of the horizontal plate 101 in the direction from the bottom to the top of the beam structure 110. The insert plate 102 can be inserted into the slot 111, and since the second end of the insert plate 102 is lower than the horizontal plate 101, the beam structure 110 can be sandwiched between the insert plate 102 and the horizontal plate 101, thereby restricting the position of the horizontal plate 101 in the direction from the bottom to the top of the beam structure 110 and preventing the horizontal plate 101 from moving in the direction from the bottom to the top of the beam structure 110.

[0082] like Figures 8 to 10 As shown, in Embodiment 1, the side plate structure 100 further includes a stop plate 103, which cooperates with the side stop of the crossbeam structure 110. The side plate structure 100 also includes a vertical plate 104 connected to the cross plate 101, which is disposed at the end of the crossbeam structure 110. The stop plate 103 cooperates with the side stop of the crossbeam structure 110, thereby the stop plate 103 and the insert plate 102 can jointly limit the side of the crossbeam structure 110, preventing relative displacement between the side plate structure 100 and the crossbeam structure 110 in the width direction of the crossbeam structure 110. The vertical plate 104 can abut against the end of the crossbeam structure 110, thus making the connection between the side plate structure 100 and the crossbeam structure 110 more stable.

[0083] The horizontal plate 101, the insert plate 102, and the stop plate 103 are integrated into one structure. The insert plate 102 and the stop plate 103 can be obtained by cutting and bending.

[0084] It should be noted that there are two stop plates 103 arranged at intervals, and the two stop plates 103 are located on two opposite sides of the crossbeam structure 110.

[0085] The insert plate 102 includes two spaced apart. Both insert plates 102 are located between two stop plates 103. The slot 111 includes two spaced apart, and the two slots 111 are configured to correspond one-to-one with the two insert plates 102.

[0086] The crossbeam structure 110 includes a first square tube 112, a second square tube 113, and a third square tube 114. The first square tube 112 and the second square tube 113 are spaced apart and arranged parallel to each other. The two ends of the third square tube 114 are connected to the first square tube 112 and the second square tube 113, respectively. A mounting base 30 is disposed on the third square tube 114. The third square tube 114 is provided with mounting holes, and the mounting base 30 passes through the mounting holes.

[0087] Two slots 111 are respectively located at the end of the first square tube 112 and the end of the second square tube 113.

[0088] like Figure 9 and Figure 11 As shown, the first square tube 112 is provided with a first slot 1121. The bracket also includes a first mating member 130. One end of the first mating member 130 is connected to the third tensioned member 120, and the other end of the first mating member 130 passes through the first slot 1121 and can abut against the first slot 1121. When the connecting seat 20 drives the third tensioned member 120 to move toward the mounting seat 30, the end of the first mating member 130 abuts against the end of the first slot 1121.

[0089] Multiple first slots 1121 are provided, and the multiple first slots 1121 are spaced apart along the length direction of the first square tube 112. Multiple first mating parts 130 are provided, and the multiple first mating parts 130 are provided in a one-to-one correspondence with the multiple first slots 1121.

[0090] The second square tube 113 is provided with a second slot, and the bracket also includes a second mating member. One end of the second mating member is connected to the third tensioned member, and the other end of the second mating member passes through the second slot and can abut against the second slot. When the connecting seat 20 drives the third tensioned member 120 to move toward the mounting seat 30, the end of the second mating member abuts against the end of the second slot.

[0091] The second slot includes multiple slots, which are spaced apart along the length of the second square tube. The second mating component includes multiple components, which are arranged in a one-to-one correspondence with the multiple second slots.

[0092] The second tensioning member 2 includes two parts, which are respectively disposed at both ends of the crossbeam structure 110. The tensioning device also includes two parts, and the third tensioning member 120 also includes two parts. The two second tensioning members 2, the two third tensioning members 120, and the two tensioning devices are disposed in a one-to-one correspondence.

[0093] Both the first mating part 130 and the second mating part are shoulder bolts. The first slot includes an interconnected clearance section, a guide section, and an abutment section. The clearance section is located at the bottom of the first square tube 112 and its width is greater than the diameter of the shoulder bolt. The guide section is located on the side of the first square tube 112 near the second square tube 113 and its width is greater than the diameter of the shoulder bolt. The abutment section is located on the side of the first square tube 112 near the second square tube 113 and extends horizontally. The width of the abutment section is equal to the diameter of the shoulder bolt. The abutment section of the first slot 1121 allows for smooth contact with the shoulder bolt, enabling the shoulder bolt to provide vertical restraint to the beam structure. When disassembling the beam structure 110 and the third tensioned member 120, the beam structure 110 can be removed from the shoulder bolt on the third tensioned member 120 along the path of the first slot 1121. The operation is convenient and quick, requiring no external tools.

[0094] The second card slot has the same structure as the first card slot 1121.

[0095] When the first tensioned member 1, the second tensioned member 2, and the third tensioned member are connected, the operating mechanism is in the first driving state. That is, the second end of the pawl 531 passes through the first opening 512 and extends into the receiving space 511, and abuts against one of the first teeth 522. The rotating seat 51 can drive the second transmission member 52 to rotate, and then the second transmission member 52 drives the first transmission member 40 to rotate, so that the first transmission member 40 drives the connecting seat 20 to move toward the mounting seat 30. Then the connecting seat 20 drives the first connecting frame 10 to move toward the mounting seat 30. The first connecting frame 10 drives the third tensioned member 120 to move toward the mounting seat 30. The third tensioned member 120 drives the first tensioned member 1 to move toward the mounting seat 30 through the third transmission member 80 and the second connecting frame 70, thereby realizing the connection of the first tensioned member 1, the second tensioned member 2, and the third tensioned member 120.

[0096] When the first tensioned member 1, the second tensioned member 2, and the third tensioned member 120 are disassembled, the operating mechanism 50 is in the second driving state. The second end of the pawl 531 passes through the second opening 513 and extends into the receiving space 511, and abuts against one of the first teeth 522. The rotating seat 51 can drive the second transmission member 52 to rotate, and then the second transmission member 52 drives the first transmission member 40 to rotate, so that the first transmission member 40 drives the connecting seat 20 to move away from the mounting seat 30. The first connecting frame 10 drives the third tensioned member 120 to move away from the mounting seat 30. The third tensioned member 120 drives the third transmission member 80 to move away from the mounting seat 30. The third transmission member 80 no longer tensions the second tensioned member 2, thus realizing the disassembly of the first tensioned member 1, the second tensioned member 2, and the third tensioned member 120.

[0097] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0098] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0099] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0100] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tensioning device for tensioning a first tensioned member (1) and a second tensioned member (2), characterized in that The tensioning device includes: The first connecting bracket (10) is connected to the first tensioned member (1); The connector (20) is movably mounted; Mounting base (30) is disposed on the second tensioned member (2), and the first end of the connecting base (20) is guidedly engaged with the mounting base (30); The first transmission component (40) has a first end that is threadedly engaged with the connecting seat (20) and a second end that is threadedly engaged with the mounting seat (30). The operating mechanism (50) is driven to cooperate with the first transmission member (40) so that the first transmission member (40) drives the connecting seat (20) to move toward the mounting seat (30), and the second end of the connecting seat (20) can pull the first connecting frame (10) to move toward the mounting seat (30).

2. The tensioning device of claim 1, wherein The operating mechanism (50) includes a rotating seat (51), a second transmission member (52), and a stop (53). The second transmission member (52) is disposed on the outer periphery of the first transmission member (40). The rotating seat (51) has a stationary state relative to the second transmission member (52) and an active state relative to the second transmission member (52). The stop (53) is disposed between the rotating seat (51) and the second transmission member (52) and has a locked state. When the stop (53) is in the locked state, the rotating seat (51) is in the stationary state.

3. The tensioning device of claim 2, wherein, The second transmission member (52) includes a transmission ring (521) and a plurality of first teeth (522) disposed on the outer periphery of the transmission ring (521). The stop part (53) includes a pawl (531) and a force-applying member. The first end of the pawl (531) is rotatably disposed on the rotating seat (51). The second end of the pawl (531) is inserted into any two adjacent first teeth (522) among the plurality of first teeth (522). The force-applying member is disposed on the pawl (531) or between the rotating seat (51) and the pawl (531) so that the second end of the pawl (531) is held in a position abutting against the second transmission member (52).

4. The tensioning device according to claim 3, characterized in that, The rotating seat (51) is provided with a receiving space (511), and the second transmission member (52) is disposed in the receiving space (511). The rotating seat (51) is provided with a first opening (512) on its side wall. The operating mechanism (50) also has a first driving state of rotating in a first preset direction. When the operating mechanism (50) is in the first driving state, the second end of the pawl (531) passes through the first opening (512) and extends into the receiving space (511), and abuts against one of the first teeth (522) of the plurality of first teeth (522), so that the first transmission member (40) drives the connecting seat (20) to move toward the mounting seat (30).

5. The tensioning device of claim 4, wherein, The rotating seat (51) is also provided with a second opening (513) on its side wall. The operating mechanism (50) also has a second driving state that rotates in a second preset direction. The second preset direction is opposite to the first preset direction. When the operating mechanism (50) is in the second driving state, the second end of the pawl (531) passes through the second opening (513) and extends into the receiving space (511), and abuts against one of the first teeth (522) of the plurality of first teeth (522), so that the first transmission member (40) drives the connecting seat (20) to move away from the mounting seat (30).

6. The tensioning device according to any one of claims 3 to 5, characterized in that, The tensioning device further includes a fixing member (60), which connects the first transmission member (40) and the rotating seat (51); The rotating seat (51) is provided with a first connecting hole (514), the first transmission member (40) is provided with a second connecting hole (42), and the fixing member (60) passes through the first connecting hole (514) and the second connecting hole (42); And / or, the tensioning device further includes an elastic element (90) disposed between the fixing element (60) and the rotating seat (51) to hold the rotating seat (51) in a position abutting against the mounting seat (30).

7. The tensioning device of any one of claims 3 to 5, wherein, The tensioning device further includes a second connecting frame (70) and a third transmission component (80). The second connecting frame (70) is disposed on the first tensioned component (1). One end of the third transmission component (80) is movably disposed on the second connecting frame (70), and the other end of the third transmission component (80) is connected to the third tensioned component (120). The third tensioned component (120) is positionally adjustable on the second tensioned component (2). The first connecting frame (10) is disposed on the third tensioned component (120). And / or, a first anti-rotation plane (5211) is provided on the inner wall of the transmission ring (521). The first transmission component (40) includes a transmission column (41). A second anti-rotation plane (411) is provided on the transmission column (41). The first anti-rotation plane (5211) and the second anti-rotation plane (411) are anti-rotation engaged.

8. The tensioning device of claim 2, wherein, The rotating seat (51) is provided with a receiving space (511), and the second transmission member (52) is disposed in the receiving space (511). The second transmission member (52) includes a transmission ring (521) and a plurality of first teeth (522) disposed on the outer periphery of the transmission ring (521). The stop part (53) includes a plurality of second teeth (532) disposed on the rotating seat (51) and located in the receiving space (511). The plurality of second teeth (532) are disposed corresponding to the plurality of first teeth (522), and a second tooth (532) is disposed between any two adjacent first teeth (522).

9. A support comprising a first tensioned member (1), a second tensioned member (2) and a tensioning device, characterized in that The first tensioned member (1) is a side plate structure (100), the second tensioned member (2) is a crossbeam structure (110), and the tensioning device is the tensioning device according to any one of claims 1 to 8.

10. The stent defined in Claim 9, wherein, The side plate structure (100) includes a horizontal plate (101) and an insert plate (102). The horizontal plate (101) is disposed on the top of the beam structure (110). The first end of the insert plate (102) is connected to the horizontal plate (101), and the second end of the insert plate (102) is lower than the horizontal plate (101). The beam structure (110) is provided with a slot (111). The insert plate (102) is inserted into the slot (111) to restrict the movement of the horizontal plate (101) along the direction from the bottom to the top of the beam structure (110).

11. The stent defined in Claim 10, wherein, The side plate structure (100) further includes a stop plate (103), which cooperates with the side stop of the beam structure (110), and / or, the side plate structure (100) further includes a vertical plate (104) connected to the cross plate (101), which is disposed at the end of the beam structure (110).

Images