Cast-in-place pile concrete guide pipe lifting appliance

Abstract

The utility model provides a cast-in-place pile concrete guide pipe lifting appliance which comprises a clamping piece, the clamping piece is provided with two semicircular plates, the ends of the two semicircular plates are detachably and fixedly connected, and clamping arm assemblies are arranged above the semicircular plates; the clamping arm assembly is provided with two upper clamping arms, the middles of the two upper clamping arms are hinged, lower clamping arms are fixedly arranged at the lower ends of the upper clamping arms, the included angle alpha between the upper clamping arms and the lower clamping arms is an obtuse angle, the middles of the lower clamping arms are slidably and rotatably connected with the outer side of the semicircular plate, and the bottom ends of the lower clamping arms are provided with arc-shaped clamping plates matched with the clamping pieces in radius. In the utility model, the hoop piece is sleeved at the end part of the conduit, the upper end of the upper clamping arm is connected with the steel wire rope to lift the conduit, the gravity of the conduit during lifting acts on the hoop piece and the lower clamping arm for clamping, and the clamping plates at the two ends of the lower clamping arm are stably clamped on the two sides of the conduit, so that the connection stability between the lower clamping arm and the conduit is enhanced, the connection reliability is improved, and the looseness is avoided; the construction safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of cast-in-place pile construction technology, and particularly relates to a cast-in-place pile concrete guide pipe lifting appliance. BACKGROUND

[0002] Cast-in-place piles and diaphragm walls are common important underground structures, and cast-in-place piles and diaphragm walls are generally formed by mud wall protection, and underwater concrete pouring is completed by means of a guide pipe, and the guide pipe needs to be frequently hoisted during the whole underwater concrete construction process.

[0003] In the prior art, a kind of cast-in-place pile concrete guide pipe hoisting buckle device is disclosed in Chinese patent literature with the authorization announcement No.CN103964299B, including steel wire rope, the both ends of arc buckle are provided with lifting ring, steel wire rope is connected together after the end of the both ends of lifting ring is passed;In the prior art, the situation that steel wire rope loosens will occur during hoisting, after steel wire rope loosens, guide pipe falls off, there is security risk.

[0004] Therefore, it is necessary to design a kind of cast-in-place pile concrete guide pipe lifting appliance that can stably clamp guide pipe, avoid loosening and ensure construction safety to solve the technical problems faced at present. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model provides a kind of cast-in-place pile concrete guide pipe lifting appliance that can stably clamp guide pipe, avoid loosening and ensure construction safety.

[0006] The technical scheme of the utility model is as follows: a cast-in-place pile concrete guide pipe lifting appliance includes a clamp piece, the clamp piece has two semicircular ring plates, the two semicircular ring plates are detachably fixedly connected between the end portions, a clamping arm assembly is arranged above the semicircular ring plates, the clamping arm assembly has two upper clamping arms that are hingedly connected in the middle portion, a lower clamping arm is fixedly arranged at the lower end of the upper clamping arm, the included angle α between the upper clamping arm and the lower clamping arm is obtuse, the middle portion of the lower clamping arm is slidingly and rotatably connected to the outer side of the semicircular ring plate, and a circular-arc-shaped clamping plate that matches the radius of the clamp piece is arranged at the bottom end of the lower clamping arm.

[0007] Further, a hinge seat is fixedly arranged on the outer side of the semicircular ring plate, a waist-shaped hole is formed in the side surface of the hinge seat along the radial direction of the clamp piece, a sliding rod that matches the waist-shaped hole is fixedly arranged on the side surface of the lower clamping arm, and the sliding rod is slidingly and rotatably arranged in the waist-shaped hole.

[0008] Further, a limiting plate is fixedly arranged at the end portion of the sliding rod.

[0009] Further, a notch is formed in the upper end of the upper clamping arm, and a rope shaft is arranged in the notch.

[0010] Further, the two ends of the semi-circular ring plate are fixedly provided with connecting plates, and the two connecting plates corresponding to the two ends of the semi-circular ring plate are detachably fixedly connected through a bolt-nut mechanism.

[0011] Further, the inner side of the clamping plate is fixedly provided with a pad plate.

[0012] Further, the pad plate is fixedly bonded to the inner side of the clamping plate, and the pad plate is a rubber plate.

[0013] The utility model discloses the beneficial effects: in the utility model, the clamp piece is sleeved on the end of guide pipe, and the upper end of upper clamping arm is connected with the steel wire rope to hoist it, the gravity of guide pipe acts on the clamp piece when hoisting, and the lower clamping arm is clamped, and the clamping plate at the both ends of the lower clamping arm is stably clamped on the both sides of guide pipe, the connection stability between guide pipe is strengthened, the connection reliability is promoted, the loosening is avoided, and the construction safety is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of one of guide pipe hoist of cast-in-place pile concrete in the utility model.

[0015] Figure 2 It is Figure 1 It is the partial close-up view of A in the utility model.

[0016] Figure 3 It is the structure schematic view of two of guide pipe hoist of cast-in-place pile concrete in the utility model. DETAILED DESCRIPTION

[0017] Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative in nature and is in no way intended to limit the present utility model, its application or uses, alone or as a combination. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present utility model is thorough and complete and fully conveys the scope of the present utility model to those skilled in the art. It should be noted that: unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0018] In the present utility model, the words "first", "second" and the like do not indicate any order, number or importance, but are only used to distinguish different parts. The words "include" or "contain" and the like mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] As Figures 1 to 3 shown, the pouring pile concrete conduit hoist, including the clamp piece 1, the clamp piece 1 has two half circular ring plates 11, and the end between two half circular ring plates 11 is detachably fixedly connected, and the upper of half circular ring plate 11 is provided with the clamping arm assembly 4;Clamping arm assembly 4 has two upper clamping arms 41 that are hingedly connected in the middle, and the lower end of upper clamping arm 41 is fixedly provided with lower clamping arm 42, and the included angle α between upper clamping arm 41 and lower clamping arm 42 is obtuse, and the middle of lower clamping arm 42 is slidingly and rotatably connected with the outside of half circular ring plate 11, and the bottom end of lower clamping arm 42 is provided with arc-shaped clamping plate 2 matched with the radius of clamp piece 1;In this embodiment, the clamp piece 1 is sleeved on the end of the conduit, the upper end of the upper clamping arm 41 is connected with the steel wire rope to hoist it, and the gravity of the conduit acts on the clamp piece 1 when hoisting, and the lower clamping arm 42 is clamped between the two sides of the conduit through the clamping plate 2 at both ends of the lower clamping arm 42, which strengthens the connection stability between the conduit and the conduit, improves the connection reliability, avoids loosening and ensures the safety of construction.

[0020] In some embodiments, the outside of half circular ring plate 11 is fixedly provided with hinge seat 14 in the middle, the side of hinge seat 14 is provided with waist-shaped hole 15 along the radial direction of clamp piece 1, the side of lower clamping arm 42 is fixedly provided with sliding rod 43 matched with waist-shaped hole 15, and sliding rod 43 is slidingly and rotatably arranged in the inside of waist-shaped hole 15;The waist-shaped hole 15 in the inside of hinge seat 14 reserves space for the movement of sliding rod 43 of clamping arm assembly 4 when clamping;During the process of pouring concrete after hoisting, the concrete flows in the conduit, which increases the gravity of the conduit, and the clamp piece 1 connected with the conduit will cause the clamping plate 2 at the lower end of the clamping arm assembly 4 to be further clamped, so as to ensure the stability of the connection between the conduit and the conduit.

[0021] In some embodiments, the end of sliding rod 43 is fixedly provided with limit plate 44, which can prevent sliding rod 43 from slipping out of the inside of waist-shaped hole 15, so as to ensure the reliability of the connection;Specifically, limit plate 44 is a circular plate body, and limit plate 44 is welded and fixed at the end of sliding rod 43.

[0022] In some embodiments, the upper end of upper clamping arm 41 is provided with notch 411, and the inside of notch 411 is provided with rope shaft 5, which is used for connecting with steel wire rope, so as to facilitate the fixation of steel wire rope.

[0023] In some embodiments, the two ends of half circular ring plate 11 are fixedly provided with connecting plate 12, and the two connecting plates 12 corresponding to the ends of two half circular ring plates 11 are detachably fixedly connected through bolt and nut mechanism 13;When installing, the two half circular ring plates 11 are correspondingly sleeved on the outside of the end of guide rod, and then the two connecting plates 12 corresponding to each other are locked and fixed through bolt and nut mechanism 13.

[0024] In some embodiments, the inner side of the clamping plate 2 is fixedly provided with a pad plate 3, through which the friction between the clamping plate 2 and the catheter can be increased, and at the same time a certain buffering effect can be achieved to avoid damaging the catheter clamp.

[0025] In some embodiments, the pad plate 3 is adhesively fixed to the inner side of the clamping plate 2, and the pad plate 3 is a rubber plate; specifically, the pad plate 3 is adhesively fixed or bolted to the inner side of the clamping plate 2, and the side of the rubber plate away from the clamping plate 2 can be provided with anti-skid protrusions or anti-skid grooves to further increase the friction with the outer side of the catheter during clamping.

[0026] In some embodiments, as a specific embodiment of the upper clamping arm 41 and the lower clamping arm 42, the included angle α between the upper clamping arm 41 and the lower clamping arm 42 is 130-145°; more specifically, the included angle α between the upper clamping arm 41 and the lower clamping arm 42 is 135°.

[0027] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0028] The above-described embodiments only express some of the embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A concrete conduit sling for a cast-in-place pile, characterized by: The utility model provides a kind of clamp, including hoop piece, the hoop piece has two half circular ring plates, and the end of two half circular ring plates is detachably fixed connection, and the upper of half circular ring plate is provided with clamping arm assembly; The clamping arm assembly has two upper clamping arms that are hingedly connected in the middle portion, and the lower end of the upper clamping arms is fixedly provided with a lower clamping arm, the included angle α between the upper clamping arms and the lower clamping arm is obtuse, the middle portion of the lower clamping arm is slidingly and rotatably connected to the outer side of the half circular ring plate, and the bottom end of the lower clamping arm is provided with a circular-arc-shaped clamping plate matching the radius of the hoop piece.

2. A concrete conduit sling for a cast in place pile according to claim 1, characterised in that: The outer side of the half circular ring plate is centrally fixedly provided with a hinge seat, the side surface of the hinge seat is provided with a waist-shaped hole along the radial direction of the hoop piece, the side surface of the lower clamping arm is fixedly provided with a sliding rod matching the waist-shaped hole, and the sliding rod is slidingly and rotatably arranged in the waist-shaped hole.

3. A concrete conduit sling for a cast in place pile according to claim 2, characterised in that: The end of the sliding rod is fixedly provided with a limiting plate.

4. A concrete duct hoist for a cast-in-place pile according to claim 1, wherein: The upper end of the upper clamping arm is provided with a notch, and the inside of the notch is provided with a rope shaft.

5. A concrete duct hoist for a cast-in-place pile according to claim 1, wherein: Both ends of the half circular ring plate are fixedly provided with a connecting plate, and the two connecting plates corresponding to the ends of the two half circular ring plates are detachably fixedly connected by a bolt and nut mechanism.

6. A cast in-situ pile concrete duct hoist according to claim 1, characterised in that: The inner side of the clamping plate is fixedly provided with a backing plate.

7. A concrete conduit sling for a cast in place pile according to claim 6 wherein: The backing plate is adhesively fixed to the inner side of the clamping plate, and the backing plate is a rubber plate.

Images