Variable cross-section screw pile

Abstract

The utility model discloses a variable cross-section screw pile which comprises a pile rod and further comprises an adjusting assembly used for adjusting the width of a pile body. The adjusting assembly comprises an arc plate, sliding blocks and a supporting rod A, the multiple sliding blocks are slidably connected to the arc plate, one end of the supporting rod A is hinged to the sliding blocks, and the other end of the supporting rod A is hinged to the sleeve; according to the utility model, the pile rod can be prevented from entering a foundation pit and being clamped.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screw pile construction technical field especially relates to variable cross section screw pile. BACKGROUND

[0002] Screw pile is a new type of pile, its feature is that the upper part of the pile is designed as a cylinder and the lower part is designed as a screw thread, this design makes the geometric section of the pile body more comply with the distribution law that the additional stress field gradually reduces from top to bottom, wherein the upper part of the variable cross section screw pile is designed as a cylinder and the lower part is designed as a screw thread, but this setting leads to that the screw pile of the upper part is easily stuck in the foundation pit when entering the ground because its width is greater than the screw rod, the present application provides a variable cross section screw pile which can avoid being stuck in the foundation pit when entering the foundation pit. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a variable cross section screw pile, and solves the above problems.

[0004] In order to achieve the above object, the utility model is realized by the following technical scheme: a variable cross section screw pile, comprising a pile rod, further comprising: an adjusting assembly for adjusting the width of the pile body; the adjusting assembly comprises an arc plate, a sliding block and a support rod A, a plurality of sliding blocks are respectively slidably connected to the arc plate, one end of the support rod A is hingedly connected with the sliding block, and the other end of the support rod A is hingedly connected to the sleeve.

[0005] Beneficial effects

[0006] The utility model provides a variable cross section screw pile, compared with the prior art, has the following beneficial effects:

[0007] When the device enters the foundation pit, the user starts the motor, so that the fixed connection on its output shaft screw rod synchronous rotation, and drive the sleeve connected to the sleeve along its linear sliding, at the same time due to the sliding sleeve and sleeve connection place set up damping rubber strip, can make the sliding sleeve smooth sliding, at this time the sliding sleeve starts to drive its hinge strut B, and make strut B push and hinge with its arc plate, at this time the arc plate sliding connection on the other side of the slider starts along its connection sliding, and drive its hinge strut A synchronous movement, so that the arc plate in strut A and strut B cooperation starts synchronous sliding, at this time multiple arc plate synchronous outward movement and begin to push the foundation pit wall, when multiple arc plate expansion to the maximum, the user will fill in the gap between the arc plate respectively multiple plug, make the plug align the arc plate groove down to the bottom of the arc plate, make it with arc plate cooperation complete the circle, so as to complete the cross section width adjustment, then the user rotates the connecting rod to the plug above, and tighten the fastening bolt, so as to rotate the connecting rod limit, at this time the user starts to rotate the dial manually, make the slide rod on the dial starts along its linear motion and drive the top rod starts to insert the plug, when the top rod contact to the plug on the groove bottom, can make the connecting rod continue to slide through the compression spring, until the connecting rod and plug close, so as to press the plug between two arc plate, avoid its fall off. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 It is three-dimensional structure schematic view of the utility model.

[0009] Fig. 2 It is overall structure section schematic view of the utility model.

[0010] Fig. 3 It is section structure enlarged schematic view of the utility model.

[0011] Fig. 4 It is structure enlarged schematic view of the utility model.

[0012] Legend: pile pole 101, adjusting assembly 2, arc plate 201, slider 202, strut A 203, sleeve 204, strut B 205, sliding sleeve 206, screw rod 207, motor 208, plug 209, screw rod A 301, slide rod 302, dial 303, connecting rod 304, fastening bolt 305, top rod 306, spring 307. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following combines with the drawings and examples, and makes further detailed description to the utility model. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0014] The specific implementation of the utility model is described in detail below in combination with specific embodiments.

[0015] Please refer to Figs. 1-4 For the utility model embodiment, the variable cross-section screw pile comprises a pile rod 101 and further comprises:

[0016] The adjusting assembly 2 is used for adjusting the width of the pile body.

[0017] The adjusting assembly 2 comprises an arc plate 201, a sliding block 202 and a support rod A 203, a plurality of sliding blocks 202 are respectively connected in sliding mode on the arc plate 201, one end of the support rod A 203 is hingedly connected with the sliding block 202, and the other end of the support rod A 203 is hingedly connected on a sleeve 204.

[0018] For the above example, those skilled in the art should know that the specific arc plate 201 described in the above embodiment is not limited when implementing the above technical solution, for example, a plurality of dot-shaped protrusions are arranged on the arc plate 201, and the purpose of this arrangement is to facilitate the increase of the connection effect between the arc plate 201 and the pile wall through this arrangement.

[0019] Specifically, the other side of the arc plate 201 is hingedly connected with a support rod B 205, the support rod B 205 is rotationally connected with the support rod A 203, and the sleeve 204 is fixedly connected on the pile rod 101.

[0020] For the above example, those skilled in the art should know that the specific support rod B 205 and the support rod A 203 described in the above embodiment are not limited when implementing the above technical solution, for example, the support rod B 205 and the support rod A 203 are selected as components processed in an integrated manner, and the purpose of this arrangement is to facilitate the increase of the hardness thereof through this arrangement, so as to avoid the bending under stress.

[0021] Specifically, the other end of the support rod B 205 is hingedly connected on a sliding sleeve 206, the sliding sleeve 206 is connected in sliding mode in the sleeve 204, and the sliding sleeve 206 is threadedly connected on a lead screw 207.

[0022] For the above example, those skilled in the art should know that the specific sliding sleeve 206 described in the above embodiment is not limited when implementing the above technical solution, for example, a damping rubber strip is arranged at the connection between the sliding sleeve 206 and the sleeve 204, and the purpose of this arrangement is to facilitate the increase of the damping received by the sliding sleeve 206 when sliding, and to enable the sliding thereof to be smooth.

[0023] Specifically, one end of the lead screw 207 is rotationally connected with the sleeve 204, the other end of the lead screw 207 is fixedly connected on an output shaft of a motor 208, and the motor 208 is fixedly connected with the sleeve 204.

[0024] For the above example, those skilled in the art should know that in the implementation of the technical solutions described above, the specific lead screw 207 described in the above embodiment is not limited, for example, the reciprocating lead screw should be selected, and the purpose of such a setting is that when the slider threaded on the reciprocating lead screw moves to one end, the direction of motion of the slider can be quickly changed by continuing to control the reciprocating lead screw to rotate in the same direction.

[0025] Specifically, the two adjacent arc plates 201 are inserted with an insertion plate 209, and the insertion plate 209 is provided with a sealing rubber strip at the connection with the arc plate 201.

[0026] For the above example, those skilled in the art should know that in the implementation of the technical solutions described above, the specific insertion plate 209 described in the above embodiment is not limited, for example, the insertion plate 209 is inserted into the sliding groove of the arc plate 201 through the bosses on both sides, and the purpose of such a setting is to facilitate the increase of the limiting effect of the insertion plate 209. When the user inserts the insertion plate 209 and the soil is blocked between the two arc plates 201, the user can use a hammer or other tools to knock the insertion plate 209 to press it into the arc plate 201.

[0027] Specifically, a plurality of arc plates 201 are respectively rotatably connected with a lead screw A301, the lead screw A301 is threaded with a sliding rod 302, the sliding rod 302 is slidably connected with the arc plate 201, and the top of the lead screw A301 is fixedly connected with a dial 303.

[0028] For the above example, those skilled in the art should know that in the implementation of the technical solutions described above, the specific lead screw A301 described in the above embodiment is not limited, for example, the lead screw A301 should be selected to have a self-locking effect, and the purpose of such a setting is to facilitate the increase of the limiting effect of the sliding rod 302 threaded thereon.

[0029] Specifically, the sliding rod 302 is rotatably connected with a connecting rod 304 on both sides, and the sliding rod 302 is provided with a fastening bolt 305 at the connection with the connecting rod 304.

[0030] For the above example, those skilled in the art should know that in the implementation of the technical solutions described above, the specific fastening bolt 305 described in the above embodiment is not limited, for example, the fastening bolt 305 is connected with a nut at the bottom, and the purpose of such a setting is to facilitate the rotation limiting of the connecting rod 304 and the sliding rod 302 by tightening the fastening bolt 305.

[0031] Specific, the connecting rod 304 on the slide connection has a top rod 306, the top rod 306 is sleeved with a spring 307, one end of the spring 307 is fixedly connected with the connecting rod 304, the other end of the spring 307 is fixedly connected with the top rod 306.

[0032] For the above examples, those skilled in the art should know that in the implementation of the above technical solutions, the specific spring 307 described in the above embodiment is not limited, for example, the spring 307 is attached to the groove on the plug plate 209, and the purpose of such arrangement is to prevent the plug plate 209 from being inserted into the arc plate 201 from being offset.

[0033] In the embodiment of the utility model, when the device enters the foundation pit, the user starts the motor 208, so that the screw rod 207 fixedly connected with the output shaft thereof rotates synchronously, and drives the sliding sleeve 206 threadedly connected with the screw rod 207 to start linear sliding along the connecting place thereof with the sleeve 204, and at the same time, the damping rubber strip arranged at the connecting place of the sliding sleeve 206 with the sleeve 204 can make the sliding sleeve 206 slide stably, at this time, the sliding sleeve 206 starts to drive the support rod B 205 hinged thereon, and makes the support rod B 205 push the arc plate 201 hinged thereto, at this time, the sliding block 202 slidingly connected to the other side of the arc plate 201 starts to slide along the connecting place thereof, and drives the support rod A 203 hinged thereon to move synchronously, so that the arc plate 201 starts to slide synchronously under the cooperation of the support rod A 203 and the support rod B 205, at this time, the plurality of arc plates 201 move outward synchronously and start to push the foundation pit wall, when the plurality of arc plates 201 expand to the maximum limit, the user fills the plurality of plug plates 209 into the gaps of the arc plates 201 respectively, makes the plug plate 209 align with the groove of the arc plate 201 and press downward to the bottom of the arc plate 201, so that it cooperates with the arc plate 201 to form a complete circle, thereby completing the cross-sectional width adjustment, then the user rotates the connecting rod 304 above the plug plate 209, and tightens the fastening bolt 305 to limit the rotation of the connecting rod 304, at this time, the user starts to manually rotate the dial 303, so that the slide rod 302 threadedly connected with the dial 303 starts to move linearly along the connecting place thereof with the arc plate 201, and drives the top rod 306 to start to insert into the plug plate 209, when the top rod 306 contacts the bottom of the groove on the plug plate 209, the connecting rod 304 can continue to slide by compressing the spring 307, until the connecting rod 304 is attached to the plug plate 209, thereby pressing the plug plate 209 between the two arc plates 201, avoiding falling.

[0034] It is to be noted that the relative terms, such as first and second, and the like, are used herein solely to distinguish one from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] As used herein, fixed connection refers to a connection in which the parts or components are fixed and do not move relative to each other. This includes both removable and non-removable connections.

[0036] (1) Removable connection: using screws, splines, cotter pins, etc. to fix the parts together. This connection can be removed during maintenance without damaging the parts. However, the specifications of the connecting parts (such as the length of the bolts, keys, and cotter pins) must be correct, and the fastening must be appropriate.

[0037] (2) Non-removable connection: mainly refers to welding, riveting, and over-mortise fitting, etc. Since maintenance or replacement requires forging, sawing, or oxygen cutting to disassemble, the parts generally cannot be reused. At the same time, attention should be paid to the quality of the connection process, technical testing, and remedial measures (such as correction, polishing, etc.).

[0038] As used herein, sliding connection refers to the ability of a component to slide along a linear trajectory, and as used herein, hinging refers to the ability of a component to rotate along an axial constraint.

[0039] In some cases, the sliding connection and hinging as used herein can also have damping, allowing the component to maintain a desired position.

[0040] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable cross-section bolt pile, comprising a pile rod (101), characterized in that, Also includes: Adjustment component (2) is used to adjust the width of the pile body; The adjustment component (2) includes an arc plate (201), a slider (202), and a support rod A (203). Multiple sliders (202) are slidably connected to the arc plate (201). One end of the support rod A (203) is hinged to the slider (202), and the other end of the support rod A (203) is hinged to the sleeve (204).

2. The variable cross-section screw pile according to claim 1, characterized in that, A strut B (205) is hinged to the other side of the arc plate (201), the strut B (205) is rotatably connected to the strut A (203), and the sleeve (204) is fixedly connected to the pile rod (101).

3. The variable cross-section screw pile according to claim 2, characterized in that, The other end of the support rod B (205) is hinged to the sliding sleeve (206), which is slidably connected in the sleeve (204) and threadedly connected to the lead screw (207).

4. The variable cross-section screw pile according to claim 3, characterized in that, One end of the lead screw (207) is rotatably connected to the sleeve (204), and the other end of the lead screw (207) is fixedly connected to the output shaft of the motor (208). The motor (208) is fixedly connected to the sleeve (204).

5. The variable cross-section screw pile according to claim 1, characterized in that, An insert plate (209) is inserted between two adjacent arc plates (201), and a sealing strip is provided at the connection between the insert plate (209) and the arc plate (201).

6. The variable cross-section screw pile according to claim 5, characterized in that, A lead screw A (301) is rotatably connected to each of the multiple arc plates (201). A slide rod (302) is threaded onto the lead screw A (301). The slide rod (302) is slidably connected to the arc plate (201). A dial (303) is fixedly connected to the top of the lead screw A (301).

7. The variable cross-section screw pile according to claim 6, characterized in that, The slide rod (302) is rotatably connected to the two sides of the connecting rod (304), and a fastening bolt (305) is provided at the connection between the slide rod (302) and the connecting rod (304).

8. The variable cross-section screw pile according to claim 7, characterized in that, A top rod (306) is slidably connected to the connecting rod (304), and a spring (307) is sleeved on the top rod (306). One end of the spring (307) is fixedly connected to the connecting rod (304), and the other end of the spring (307) is fixedly connected to the top rod (306).

Images