Gripper for hoisting cement concrete pipe

Abstract

The utility model provides a hand grab for hoisting a cement concrete pipe. The hand grab comprises a mounting plate; the number of the grabbing rods is at least three, and the lower ends of the grabbing rods are rotationally connected to the mounting plate; the lower end of the stand column is fixedly mounted on the mounting plate; the sliding sleeve is arranged outside the stand column in a sleeving manner; the number of the inclined pull rods is equal to that of the grabbing rods, the lower ends of the inclined pull rods are rotationally connected with the grabbing rods, and the upper ends of the inclined pull rods are rotationally connected with the sliding sleeve. The hand grab is used for grabbing and fixing the cement concrete pipe when the cement concrete pipe is moved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the municipal drainage construction technical field, especially relate to a kind of gripper of hoisting cement concrete pipe. BACKGROUND

[0002] In municipal drainage engineering, cement concrete pipe is often used as drainage pipeline. Because cement concrete pipe is heavy, it is inconvenient to load, unload and move.

[0003] The above content is only used to assist understanding the technical scheme of the utility model, and does not represent that the above content is prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of gripper of hoisting cement concrete pipe, for when moving cement concrete pipe, it is fixed to grasp and cement concrete pipe.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of gripper of hoisting cement concrete pipe, comprising:

[0007] Mounting plate;

[0008] Grab bar, the grab bar is at least three, the lower end of the grab bar is rotatably connected on the mounting plate;

[0009] Stand, the lower end of the stand is fixedly installed on the mounting plate;

[0010] Slip sleeve, the slip sleeve is sleeved on the stand;And,

[0011] Inclined pull rod, the number of the inclined pull rod is equal to the number of the grab bar, the lower end of the inclined pull rod is rotatably connected with the grab bar, and the upper end is rotatably connected with the slip sleeve.

[0012] Further, it further includes: circular ring, the circular ring is fixedly connected on the upper end of the stand.

[0013] Further, it further includes: fixed pulley, the fixed pulley is fixedly connected on the side wall of the upper end of the stand;And, rope, the rope passes through the fixed pulley, and the lower end of the rope is fixedly connected with the slip sleeve.

[0014] Further, it further includes: rubber sleeve, the number of the rubber sleeve is equal to the number of the grab bar, and the rubber sleeve is sleeved on the upper end of the grab bar.

[0015] Further, the grab bar is three, and the interval between the three grab bars is 120 °.

[0016] Further, the diameter of the circumscribed circle of the three grab bars when being laid flat is greater than the diameter of the cross section of the cement concrete pipe.

[0017] The utility model provides a kind of to hoist the gripper of cement concrete pipe, with following beneficial effects:

[0018] 1, when needing to move cement concrete pipe, the gripper of the utility model is placed in cement concrete pipe, the grab lever rotates downward under the action of gravity, and its upper end is resisted in the inner wall of cement concrete pipe, then hoist the gripper of the utility model by the column using crane, the grab lever is supported up cement concrete pipe under the action of friction, and the grip of cement concrete pipe is completed and fixed, after moving is completed, the sliding sleeve is slid upward, and the column is retracted and rotated upward under the action of the inclined pull rod;

[0019] 2, simple structure, thus with the beneficial effects of low cost, convenient operation;No staff is needed in the process of moving cement concrete pipe, thus with the beneficial effect of saving labor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the gripper for hoisting cement concrete pipe.

[0021] Figure 2 It is a top view of the gripper for hoisting cement concrete pipe.

[0022] In the drawing: 1-mounting plate, 2-grab lever, 3-column, 4-sliding sleeve, 5-inclined pull rod, 6-cement concrete pipe, 7-fixed pulley, 8-rope winding. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a kind of to hoist the gripper of cement concrete pipe, for gripping and fixing cement concrete pipe when moving cement concrete pipe.

[0024] To make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model is described clearly and completely below, obviously, the described embodiment is the embodiment of part of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model. Embodiment one

[0025] A kind of to hoist the gripper of cement concrete pipe, comprising:

[0026] mounting plate 1;

[0027] grab lever 2, the lower end of the grab lever 2 is rotationally connected on the mounting plate 1, and the upper end of the grab lever 2 is rotationally connected on the column 3;

[0028] A post 3, the lower end of which is fixedly installed on the mounting plate 1;

[0029] A sliding sleeve 4, which is sleeved on the post 3 and can slide up and down outside the post 3;

[0030] An inclined pull rod 5, the number of which is equal to that of the grab bars 2, the lower end of which is rotatably connected with the grab bar 2, and the upper end of which is rotatably connected with the sliding sleeve 4.

[0031] The grab hand of the present embodiment for hoisting a cement concrete pipe, the mounting plate 1 is used to bear the grab bars 2 and the post 3; the grab bars 2 are rotatably connected with the mounting plate 1 through hinging, so that the grab bars 2 can rotate with the lower end as the center; the post 3 is vertically arranged and fixedly installed on the mounting plate 1 through welding; the sliding sleeve 4 is sleeved on the post 3 and can slide up and down outside the post 3; the two ends of the inclined pull rod 5 are rotatably connected with the grab bar 2 and the sliding sleeve 4 through hinging, respectively, and the lower end thereof is rotatably connected with the middle position of the grab bar 2.

[0032] The grab hand of the present embodiment for hoisting a cement concrete pipe, when it is needed to move the cement concrete pipe 6, the grab hand of the present embodiment is placed in the cement concrete pipe 6, the grab bars 2 rotate downward under the action of gravity, the upper ends of which abut against the inner wall of the cement concrete pipe 6, then a crane is used to hoist the grab hand of the present embodiment through the post 3, the grab bars 2 prop up the cement concrete pipe 6 under the action of friction, the cement concrete pipe 6 is grabbed and fixed, after the movement is completed, the sliding sleeve 4 is slid upward, the post 3 is folded up under the action of the inclined pull rod 5. As can be seen from the above, the grab hand of the present embodiment has the beneficial effects of simple structure, low cost and easy operation; no staff is needed to participate in the movement of the cement concrete pipe 6, so that the beneficial effect of saving labor can be achieved.

[0033] Specifically, the grab bars 2 can be three, as shown in Figure 2 , the three grab bars 2 are spaced 120° apart; the diameter of the circumscribed circle of the three grab bars 2 when they are laid flat needs to be greater than the diameter of the cross section of the cement concrete pipe 6, as shown in Figure 1 , which makes the grab bars 2 tilt upward when the grab hand is hoisted, the upper ends of which can tilt upward (cannot rotate downward to the horizontal state) and abut against the inner wall of the cement concrete pipe 6, so that the grab bars 2 can prop up the cement concrete pipe 6 under the action of friction.

[0034] An optional embodiment further comprises a circular ring, which is fixedly connected with the upper end of the post 3.

[0035] In the optional embodiment, the circular ring is fixedly connected to the upper end of the column 3 by welding; when the cement concrete pipe 6 is moved, the grabber can be hoisted by the circular ring by the crane.

[0036] In an optional embodiment, further comprising: a fixed pulley 7 fixedly connected to the side wall of the upper end of the column 3; and a rope 8 passing through the fixed pulley 7, the lower end of the rope 8 being fixedly connected to the sliding sleeve 4.

[0037] In the optional embodiment, the fixed pulley 7 is fixed to the side wall of the upper end of the column 3 by welding; when the cement concrete pipe 6 is moved and the grabber 2 needs to be retracted, the sliding sleeve 4 is pulled upward by the rope 8, the grabber 2 is turned upward and retracted.

[0038] In an optional embodiment, further comprising: rubber sleeves, the number of the rubber sleeves being equal to that of the grabbers 2, the rubber sleeves being sleeved on the upper end of the grabbers 2.

[0039] In the optional embodiment, the rubber sleeves are sleeved on the upper end of the grabbers 2, which can prevent the upper end of the grabbers 2 from scratching the inner wall of the cement concrete pipe 6 when the cement concrete pipe 6 is moved.

[0040] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application, therefore, the present application will not be limited to the embodiments shown herein, but will be consistent with the widest scope of the principles and novel features disclosed herein.

Claims

1. A grab for hoisting a cement concrete pipe, characterized in that Comprise: a mounting plate; at least three grab poles, the lower ends of which are rotatably connected to the mounting plate; a vertical column, the lower end of which is fixedly mounted on the mounting plate; a sliding sleeve, which is sleeved on the vertical column; and a number of diagonal pull rods equal to the number of grab poles, the lower ends of which are rotatably connected to the grab poles, and the upper ends of which are rotatably connected to the sliding sleeve.

2. A grab for hoisting a cement concrete pipe according to claim 1, characterized in that Further comprise: a circular ring, which is fixedly connected to the upper end of the vertical column.

3. A grab for hoisting a cement concrete pipe according to claim 1, characterized in that Further comprise: a fixed pulley, which is fixedly connected to the side wall of the upper end of the vertical column; and a collection rope, which passes through the fixed pulley, the lower end of which is fixedly connected to the sliding sleeve.

4. A grab for hoisting a cement concrete pipe according to claim 1, characterized in that Further comprise: a number of rubber sleeves equal to the number of grab poles, which are sleeved on the upper ends of the grab poles.

5. A grab for hoisting a cement concrete pipe according to claim 1, characterized in that The grab poles are three, and the three grab poles are spaced 120° apart.

6. A grab for hoisting a cement concrete pipe according to claim 1, characterized in that When the three grab poles are laid flat, the diameter of the circumscribed circle thereof is greater than the diameter of the cement concrete pipe section.

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