Supporting frame with extension function

Abstract

The utility model relates to the technical field of supporting frames, in particular to a supporting frame with an extension function. The supporting frame comprises a supporting frame body and an extension frame, the extension frame is arranged at the upper end of the supporting frame body in a sliding mode in the transverse direction, a driving unit is further arranged on the supporting frame body, and the driving unit is used for driving the extension frame to slide on the supporting frame body. A guide mechanism is arranged between the supporting frame body and the extension frame and comprises a guide block arranged on the supporting frame body and a guide groove formed in the lower end of the extension frame and matched with the guide block, and the guide block is in sliding fit with the guide groove. And the extension direction of the guide groove is parallel to the sliding direction of the extension frame. When the supporting position needs to be adjusted, the extension frame slides and extends in the transverse direction, the operation position is changed, the operation difficulty is lowered, trouble and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of support frames, in particular to a support frame with an extension function. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, or seas to allow for smooth passage of vehicles and pedestrians. Support frames primarily provide elevated support for people and objects. With the continuous advancement and development of society, operators often require the use of support frames to assist with the construction of high-altitude bridges. These frames support the installation of components and are a common feature of bridge construction.

[0003] In the prior art, for example, Chinese utility model patent with authorization announcement number CN202323758U discloses a "mobile support frame for use during bridge construction." This support frame comprises three hollow steel pipes: one, two, three, and four. These three pipes are connected in sequence, with one connected to the other. Rollers are provided at the bottoms of these three pipes. This mobile support frame has a simple structure and utilizes rollers to quickly move the support frame, facilitating construction of the bridge's base and sidewalls while reducing operator labor. Furthermore, it is low-cost and can be manufactured using waste materials found on the construction site, saving production resources.

[0004] During the use of the above-mentioned support frame in bridge construction, since the support frame is composed of steel pipes as a whole and the size of the support frame is fixed, each time the support position is adjusted, it is generally necessary to first destroy the fixation between the support frame and the ground, then push the support frame as a whole to the support position, and finally re-fix the support frame to the ground. This is time-consuming and labor-intensive, and the use process is relatively cumbersome. The support frame is inconvenient to provide support during bridge construction, and the work efficiency is low. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a support frame with an extension function. By arranging an extension frame at the upper end of the support frame body, when the support position needs to be adjusted, the extension frame can be driven by a driving unit to slide and extend horizontally. The extension frame can be extended to the position to be worked, and then the working position can be adjusted. There is no need to move the support frame as a whole every time the position is adjusted, which reduces the difficulty of operation, saves time and effort, and improves work efficiency.

[0006] In response to the above technical problems, the technical solution provided by the utility model is a support frame with an extension function, including a support frame body and an extension frame. The extension frame is arranged at the upper end of the support frame body along a transverse sliding manner. The support frame body is also provided with a driving unit, and the driving unit is used to drive the extension frame to slide on the support frame body. A guide mechanism is provided between the support frame body and the extension frame, and the guide mechanism includes a guide block provided on the support frame body, and a guide groove provided at the lower end of the extension frame and adapted to the guide block. The guide block slides with the guide groove, and the extension direction of the guide groove is parallel to the sliding direction of the extension frame.

[0007] Furthermore, an extension seat is provided at the upper end of the support frame body, and an extension cavity extending laterally is provided inside the extension seat. An extension groove is provided at the upper end of the extension seat and is adapted to be connected to the extension cavity. A slider is connected to the lower end of the extension frame, and the slider is deeply inserted and slidably set in the extension cavity.

[0008] Furthermore, the driving unit includes a driving screw arranged in the extension cavity, the slider is threadedly connected to the driving screw, the axial direction of the driving screw is parallel to the length direction of the extension cavity, one end of the driving screw is rotatably engaged with the extension seat, and the other end is provided with a driving motor, and the driving motor drives the driving screw to rotate.

[0009] Furthermore, two extension frames are symmetrically arranged in the transverse direction, the driving screws are bidirectional screws corresponding to the two extension frames, and the sliding blocks at the lower ends of the two extension frames are respectively threadedly connected to both sides of the bidirectional screws.

[0010] Furthermore, a guide rail extending in the transverse direction is provided at the bottom of the extension cavity, and the bottom of the sliding block is slidably provided on the guide rail.

[0011] Furthermore, a fixing mechanism is provided at the lower portion of the support frame body, and the fixing mechanism includes a fixing seat, and a movable seat is provided on the fixing seat, and the movable seat is movably provided on the fixing seat in the vertical direction to be inserted into the ground.

[0012] Furthermore, a driving member is provided on the fixed seat, and the driving member is used to drive the movable seat to move vertically.

[0013] Furthermore, the fixed seat and the movable seat are arranged at intervals, and a driving cavity extending vertically is provided inside the fixed seat, and a movable groove extending vertically is opened on the side of the fixed seat facing the movable seat, and the driving member includes a first screw, the lower end of the first screw is rotatably set at the bottom of the driving cavity, the upper end of the first screw extends out of the driving cavity and is installed with a first hand wheel, a movable sleeve is threadedly connected to the first screw, and a connecting rod adapted to the movable groove is provided on the movable sleeve, and the connecting rod passes through the movable groove and is connected to the movable seat.

[0014] Furthermore, a locking cavity extending vertically is provided inside the movable seat, and a locking structure is provided in the locking cavity. The locking structure includes a locking screw arranged vertically and rotatably set in the locking cavity, a locking ring is threadedly connected to the locking screw, and a locking hole extending radially is provided on the circumferential surface of the locking cavity, a locking block is slidably provided in the locking hole, and a locking rod is connected to the opposite ends of the locking block and the locking ring, and the two ends of the locking rod are hingedly connected to the locking block and the locking ring respectively.

[0015] Furthermore, the locking structures are arranged in multiple groups at intervals along the vertical direction.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) By arranging an extension frame at the upper end of the support frame body, when the support position needs to be adjusted, the driving unit can be used to drive the extension frame to slide and extend horizontally. The extension frame can be extended to the position to be operated, and then the operating position can be adjusted. There is no need to move the support frame as a whole every time the position is adjusted, which reduces the difficulty of operation, saves time and effort, and improves work efficiency.

[0018] (2) Two extension frames are symmetrically arranged along the transverse direction and driven by bidirectional screws. On the one hand, this can increase the extension range and the operating range; on the other hand, it can synchronously drive the two extension frames to move, thereby improving work efficiency.

[0019] (3) Driving the first hand wheel can drive the movable seat to move downward, making it easy to insert the movable seat into the ground to fix the support frame body.

[0020] (4) By utilizing the locking mechanism, after the movable seat is inserted into the ground, the locking block can be extended radially out of the locking cavity and then inserted into the soil layer to improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main cross-sectional structure of the support frame in Example 1 of the present utility model.

[0022] Figure 2 This is a structural diagram of the cooperation between the extension frame and the driving mechanism in Example 1 of the present utility model.

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of the fixing seat in Example 1 of the present utility model.

[0024] Figure 4 This is a schematic diagram of the main cross-sectional structure of the movable seat in Example 1 of the present utility model.

[0025] In the figure: 1. support frame body; 2. extension frame; 21. guide groove; 3. support seat; 4. drive unit; 41. drive motor; 42. drive screw; 43. slider; 44. displacement block; 45. connecting rod; 46. guide rail; 5. extension seat; 51. extension cavity; 52. extension groove; 6. guide block; 7. fixed seat; 71. drive cavity; 72. movable groove; 73. drive member; 74. first screw; 75. first hand wheel; 76. movable sleeve; 77. connecting rod; 8. movable seat; 81. tip structure; 82. locking cavity; 83. locking structure; 84. locking screw; 85. locking hole; 86. locking block; 87. locking ring; 88. locking rod; 89. second hand wheel; 9. ladder; 10. support leg; 11. stabilizing sleeve; 12. baffle; 13. stop block; 14. rotating seat. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0028] refer to Figures 1 to 4 The utility model provides a support frame with an extension function (hereinafter referred to as the support frame), including a support frame body 1 and an extension frame 2. The extension frame 2 is provided with a support seat 3, and the extension frame 2 is arranged at the upper end of the support frame body 1 along the horizontal sliding. The support frame body 1 is also provided with a driving unit 4, and the driving unit 4 is used to drive the extension frame 2 to slide on the support frame body 1.

[0029] In this embodiment, a guide mechanism is provided between the support frame body 1 and the extension frame 2. This guide mechanism comprises a guide block 6 mounted on the support frame body 1 and a guide slot 21 formed at the lower end of the extension frame 2 and adapted to fit within the guide block 6. The guide slot 21 extends parallel to the sliding direction of the extension frame 2. The guide block 6 slides within the guide slot 21, with the upper end of the guide block 6 abutting the vertical bottom of the slot 21. Thus, when the extension frame 2 is driven by the drive unit 4 and slides along the support frame body 1, it is guided by the guide mechanism and supported by the upper end of the guide block 6, thereby improving its motion stability.

[0030] In this embodiment, if Figure 1As shown, the length of the guide groove 21 is adapted to the extension path of the extension frame 2, so that when the extension frame 2 moves laterally back toward the support frame body 1 and extends to the extreme position, the transverse groove wall of the guide groove 21 can abut against the guide block 6 to stop the extension frame 2 from continuing to move, prevent the extension frame 2 from detaching, and improve safety.

[0031] Specifically, such as Figure 1 、 2 As shown, the upper end of the support frame body 1 is provided with an extension seat 5, which has an extension cavity 51 extending laterally therein. The upper end of the extension seat 5 is provided with an extension slot 52 adapted to communicate with the extension cavity 51. The lower end of the extension frame 2 is connected to a slider 43, which is inserted and slidably disposed within the extension cavity 51. In this way, the extension frame 2 can be extended laterally by sliding the slider 43, thereby changing the working position and improving working efficiency.

[0032] In this embodiment, if Figure 1 、 2 As shown, the drive unit 4 includes a drive screw 42 disposed within the extension chamber 51. The axis of the drive screw 42 is parallel to the length of the extension chamber 51. One end of the drive screw 42 is rotatably mounted within the extension chamber 51, and the other end is provided with a drive motor 41, which drives the drive screw 42 for rotation. A slider 43 is threadedly connected to the drive screw 42, forming a screw-nut mechanism with the drive screw 42. This allows the drive unit 4 to drive the extension frame 2 to slide laterally.

[0033] Specifically, in this embodiment, the sliding block includes a displacement block 44 and a connecting rod 45, wherein the size of the displacement block 44 is adapted to the size of the extension cavity 51, the displacement block 44 is threadedly connected to the driving screw 42, the connecting rod 45 extends upward from the extension groove 52 away from the displacement block 44, and is connected and fixed to the extension frame 2, and the size of the connecting rod 45 is adapted to the size of the extension groove 52, and the connecting rod 45 is slidably set in the extension groove 52.

[0034] In this embodiment, preferably, Figure 1 、 2 As shown, a guide rail 46 extending laterally is provided at the bottom of the extension cavity 51, and the bottom of the slider 43 is slidably provided on the guide rail 46. Specifically, a downwardly extending extension portion is provided at the lower end of the displacement block 44 corresponding to the position of the guide rail 46. The extension portion slides in cooperation with the guide rail 46, utilizing the guide rail 46 for guidance and improving stability.

[0035] Preferably, in this embodiment, Figure 1 、 2As shown, two extension frames 2 are symmetrically arranged along the transverse direction. The drive screws 42 are bidirectional drive screws, one end of which is rotatably mounted on a swivel seat at one lateral end of the extension cavity 51. The two ends of the drive screws 42 correspond to the two extension frames 2, respectively. Sliders 43 at the lower ends of the two extension frames 2 are threadedly connected to either side of the bidirectional drive screws. This not only expands the extension range and operating range, but also drives the two extension frames 2 synchronously, improving work efficiency while maintaining balance.

[0036] Specifically, in this embodiment, a stop block 13 is provided in the middle position of the extension groove 52, and the connecting rods 45 of the two sliders 43 are respectively provided on both sides of the stop block 13. A baffle 12 is provided in the middle position of the driving screw 42, and the displacement blocks 44 of the two sliders 43 are respectively provided on both sides of the baffle 12. In this way, the baffle 12 and the stop block 13 can be used to limit the maximum approach distance of the two extension frames 2 to avoid collision when the two move toward each other.

[0037] In this embodiment, if Figure 1 As shown, two guide blocks 6 are symmetrically provided on both sides of the upper end of the extension seat 5 , and the guide grooves 21 of the two extension frames 2 are slidably matched with the corresponding guide blocks 6 respectively.

[0038] In this embodiment, if Figure 1 、 3 As shown in Figures 4 and 5, the lower end of the support frame body 1 is provided with supporting legs 10. Each leg 10 is provided with a fixing mechanism, which includes a fixed base 7, a movable base 8 is provided on the fixed base 7, and a tip structure 81 is provided at the lower end of the movable base 8. The movable base 8 is vertically movably provided on the fixed base 7 so as to be inserted into the ground. The fixed base 7 is also provided with a driving member 73 for driving the movable base 8 to move vertically. In this way, the support frame can be stably fixed to the ground by using a stable insertion method, thereby improving safety.

[0039] Specifically, in this embodiment, the fixed seat 7 and the movable seat 8 are arranged with intervals in the horizontal direction, and a driving cavity 71 extending vertically is provided inside the fixed seat 7. A movable groove 72 extending vertically is provided on the side of the fixed seat 7 facing the movable seat 8, and the movable groove 72 is connected to the driving cavity 71.

[0040] The driving member 73 includes a first screw rod 74, the lower end of which is rotatably arranged at the bottom of the driving chamber 71 via a rotating seat 14, the upper end of which extends out of the driving chamber 71 and is mounted with a first hand wheel 75, a movable sleeve 76 being threadedly connected to the first screw rod 74, and a connecting rod 77 extending laterally is fixedly connected to the movable sleeve 76, the size of the connecting rod 77 being adapted to the movable groove 72, and the connecting rod 77 can slide with the movable groove 72 in the up and down directions. The end of the connecting rod 77 facing away from the movable sleeve 76 passes through the movable groove 72 and is connected to the movable seat 8. In this way, the first screw rod 74 and the movable sleeve 76 constitute a screw-nut mechanism, which can drive the first screw rod 74 to rotate by rotating the first hand wheel 75, thereby driving the movable sleeve 76 to move up and down, driving the movable seat 8 to move up and down, and driving the movable seat 8 to move vertically.

[0041] When the support frame needs to be fixed, the movable base 8 can be driven to move downward, and the tip structure 81 breaks the ground, so that the movable base 8 is deeply fixed in the ground. When the support frame is not needed to be fixed, the movable base 8 can be driven to move upward, so that the movable base 8 is separated from the ground and released.

[0042] In this embodiment, if Figure 3 、 4 As shown, a stabilizing sleeve 11 is provided at one end of the connecting rod 77 facing the movable seat 8. The stabilizing sleeve 11 is provided with a through hole extending vertically, and the size of the through hole is adapted to the size of the movable seat 8. The movable seat 8 is vertically sleeved and fixed in the through hole to improve the stability of the movable seat 8 during displacement.

[0043] Preferably, in this embodiment, a locking cavity 82 extending vertically is provided inside the movable base 8, and a locking structure 83 is provided inside the locking cavity 82. Specifically, the locking structure 83 includes a locking screw 84 vertically disposed in the locking cavity 82, the lower end of the locking screw 84 being rotatably disposed at the bottom of the locking cavity 82, and the upper end of the locking screw 84 extending out of the locking cavity 82 and provided with a second hand wheel 89.

[0044] A locking ring 87 is threadedly connected to the locking screw 84, and a locking hole 85 extending radially is provided on the circumferential surface of the locking cavity 82. The locking hole 85 is a through-hole structure, and a locking block 86 is slidably arranged in the locking hole 85. A locking rod 88 is connected to the opposite ends of the locking block 86 and the locking ring 87, and the two ends of the locking rod 88 are hingedly connected to the locking block 86 and the locking ring 87 respectively.

[0045] In this way, the locking block 86 cooperates with the locking rod 88 to limit the circumferential rotation of the locking ring 87. Then, by turning the second hand wheel 89, the locking ring 87 can be driven to move up and down. At the same time, the locking rod 88, which is connected to the hinge, drives the locking block 86 to slide radially in the locking hole 85. After the support frame is fixed and the movable seat 8 is deeply embedded in the ground, the second hand wheel 89 is turned, and the locking block 86 extends from the locking hole 85 and inserts into the soil layer, completing the locking and improving stability.

[0046] In this embodiment, in each set of locking mechanisms, two locking links 77 , locking holes 85 and locking blocks 86 are radially symmetrically arranged relative to the locking ring 87 to improve the locking degree.

[0047] Preferably, in this embodiment, multiple groups of locking structures 83 are provided at intervals along the vertical direction to increase the number of locking blocks 86 inserted into the soil layer and improve stability.

[0048] like Figure 1 As mentioned above, in this embodiment, the support frame body 1 is further provided with a ladder 9 for facilitating access to the extension frame 2 .

[0049] Working process of this application:

[0050] When the support frame is required for construction, the support frame is first placed in the working position. The first rotating wheel is rotated to move the movable base 8 downward and insert it into the ground to complete the fixation. The second hand wheel 89 is rotated to move the locking ring 87, driving the locking block 86 to extend out of the locking hole 85 and insert it into the stratum to complete the locking.

[0051] The worker accesses the extension frame 2 via the ladder 9 to work. When the work position needs to be changed, the drive motor 41 is activated, which drives the drive screw 42 to rotate, causing the extension frame 2 to slide laterally away from the support frame body 1 on the support frame body 1, changing the position of the extension frame 2 and adjusting the work position to continue working. In this way, the extension operation is completed.

[0052] In summary, the support frame of the present invention is provided with an extension frame 2 at the upper end of the support frame body 1. When the support position needs to be adjusted, the driving unit 4 can be used to drive the extension frame 2 to slide and extend horizontally. The extension frame 2 can be extended to the position to be operated, and then the operating position can be adjusted. There is no need to move the support frame as a whole every time the position is adjusted, which reduces the difficulty of operation, saves time and effort, and improves work efficiency.

[0053] Example 2: This example provides a different support frame. Unlike Example 1, in this example, to meet practical requirements, a laterally extending slide rail is provided at the upper end of the support frame body, and a slide groove is provided at the lower end of the extension seat to slidably engage with the slide rail. The slide rail is an I-shaped slide rail, and the inner wall of the slide groove is provided with a protrusion that mates with the recess of the I-shaped slide rail to prevent the two from disengaging and improve stability. In this example, the drive unit is a rack and pinion mechanism. The rack is provided on the longitudinal side of the extension frame, and the length of the rack extends laterally. The lower end of the rack engages with a matching gear, which is rotatably mounted on the support frame body. The axis of the gear extends longitudinally and is driven by a drive motor. Of course, in other embodiments, the drive unit can also be a hydraulic cylinder.

[0054] Example 3: This example provides a different drive screw. Unlike Example 1, in this example, when actual use requirements are met, only one extension frame can be provided on the support frame body, and in this case the drive screw can be a one-way screw.

[0055] Example 4: This example provides a different driving member. Unlike Example 1, in this example, the driving member may be a hydraulic rod vertically installed on the side of the fixed seat, which drives the movable seat to move up and down.

[0056] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0057] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0058] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A support frame with an extension function, characterized in that: It includes a support frame body and an extension frame. The extension frame is arranged at the upper end of the support frame body along a transverse sliding manner. A driving unit is also provided on the support frame body. The driving unit is used to drive the extension frame to slide on the support frame body. A guide mechanism is provided between the support frame body and the extension frame. The guide mechanism includes a guide block provided on the support frame body and a guide groove provided at the lower end of the extension frame and adapted to the guide block. The guide block is slidably matched with the guide groove, and the extension direction of the guide groove is parallel to the sliding direction of the extension frame.

2. The support frame with an extension function according to claim 1, characterized in that: An extension seat is provided at the upper end of the support frame body, and an extension cavity extending laterally is provided inside the extension seat. An extension groove is provided at the upper end of the extension seat and is adapted to be connected to the extension cavity. A slider is connected to the lower end of the extension frame, and the slider is deeply inserted and slidably set in the extension cavity.

3. The support frame with an extension function according to claim 2, characterized in that: The driving unit includes a driving screw arranged in the extension cavity, the slider is threadedly connected to the driving screw, the axial direction of the driving screw is parallel to the length direction of the extension cavity, one end of the driving screw is rotatably engaged with the extension seat, and the other end is provided with a driving motor, and the driving motor drives the driving screw to rotate.

4. The support frame with an extendable function according to claim 3, characterized in that: Two extension frames are symmetrically arranged in the transverse direction, and the driving screws are bidirectional screws corresponding to the two extension frames. The sliding blocks at the lower ends of the two extension frames are respectively threadedly connected to the two sides of the bidirectional screws.

5. The support frame with an extendable function according to claim 4, characterized in that: The bottom of the extension cavity is provided with a guide rail extending in the transverse direction, and the bottom of the sliding block is slidably provided on the guide rail.

6. The support frame with an extendable function according to claim 1, characterized in that: A fixing mechanism is provided at the lower part of the support frame body. The fixing mechanism includes a fixing seat. A movable seat is provided on the fixing seat. The movable seat is movably provided on the fixing seat in a vertical direction so as to be inserted into the ground.

7. The support frame with an extendable function according to claim 6, characterized in that: The fixed seat is provided with a driving member, and the driving member is used to drive the movable seat to move vertically.

8. The support frame with an extendable function according to claim 7, characterized in that: The fixed seat and the movable seat are arranged at intervals, and a driving cavity extending vertically is provided inside the fixed seat, and a movable groove extending vertically is opened on the side of the fixed seat facing the movable seat. The driving member includes a first screw, the lower end of the first screw is rotatably set at the bottom of the driving cavity, the upper end of the first screw extends out of the driving cavity and is installed with a first hand wheel, a movable sleeve is threadedly connected to the first screw, and a connecting rod adapted to the movable groove is provided on the movable sleeve, and the connecting rod passes through the movable groove and is connected to the movable seat.

9. The support frame with an extendable function according to claim 6, characterized in that: A locking cavity extending vertically is provided inside the movable seat, and a locking structure is provided in the locking cavity. The locking structure includes a locking screw arranged vertically and rotatably arranged in the locking cavity, a locking ring is threadedly connected to the locking screw, and a locking hole extending radially is provided on the circumferential surface of the locking cavity, a locking block is slidably provided in the locking hole, and a locking rod is connected to the opposite ends of the locking block and the locking ring, and the two ends of the locking rod are hingedly connected to the locking block and the locking ring respectively.

10. The support frame with an extendable function according to claim 9, characterized in that: The locking structures are arranged in multiple groups at intervals along the vertical direction.

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