CN205064437U - Novel clamping device for rebar connector - Google Patents

Abstract

The utility model relates to a new clamping device for a steel bar connector, which includes a cylinder body and a hydraulic pump. Separated by the piston, one side of the piston is provided with a piston rod, one end of the piston rod is connected and fixed with the piston, the other end of the piston rod is set through the side wall of the cylinder and the end is provided with a clamping device, and the outside of the cylinder is provided with A fixed bracket, one end of the fixed bracket is connected and fixed to the outer wall of the cylinder, the other end of the fixed bracket is set opposite to the piston rod and the end is provided with a clamping device; the beneficial effect of the utility model is that the device is based on the existing structure Improvements have been made, through the single-cylinder single-piston structure, and adding a fixed bracket to replace another piston, so that the fixed bracket and the piston rod can clamp the axial direction of the steel connector, simplifying the product structure and saving production costs.

Description

A new clamping device for steel bar connector

technical field

The utility model relates to the technical field of steel bar connection, in particular to a novel clamping device for a steel bar connector.

Background technique

In construction and other production fields, it is often necessary to connect steel bars to each other. The common steel bar connectors are successfully connected by axial extrusion of clamping devices, but some existing clamping devices are driven by rotating worms. The rotation of the worm gear and the rotation of the screw rod realize the axial extrusion movement of the pressure head through transmission, but this structure is complex, requires a lot of manpower, produces small extrusion force, low efficiency, and low automation rate; The hydraulic clamping device realizes the axial extrusion, and the axial extrusion movement is realized through the movement of the piston of the hydraulic cylinder relative to a fixed plate, but this method is suitable for clamping steel connectors of different lengths, the piston of the hydraulic cylinder The length design is longer and the stroke is larger, but this results in a larger volume of the entire clamping structure, low strength, and inconvenient operation. In addition, in order to provide a larger clamping force, the strength requirements of the hydraulic cylinder and piston rod and other components are required. At the same time, it also requires a higher pressure of the hydraulic pump, which increases the cost of production and the difficulty of processing, and also has potential safety hazards.

The technical solution with the patent number 201420532733.5 discloses a new type of clamping device for steel bar connectors with small size, convenient operation and high work efficiency. It adopts a single-cylinder double-piston structure and clamps the axial direction of the steel bar connector through a hydraulic pump. , has the disadvantages of complex structure and high cost.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a new type of clamping device for steel bar connectors, which has reasonable structural design, simple structure and low cost.

The technical scheme that the utility model solves its technical problem adopts is:

A new clamping device for steel bar connectors, including a cylinder and a hydraulic pump, characterized in that: the cylinder is partly composed of an upper chamber and a lower chamber, and the upper chamber and the lower chamber are separated by a piston , one side of the piston is provided with a piston rod, one end of the piston rod is connected and fixed to the piston, the other end of the piston rod is set through the side wall of the cylinder body and the end is provided with a clamping device, and the outside of the cylinder body is provided with a fixed bracket for fixing One end of the support is connected and fixed to the outer wall of the cylinder, and the other end of the fixed support is set opposite to the piston rod and the end is provided with a clamping device.

Oil ports communicating with the upper chamber and the lower chamber are respectively provided on the outer side of the cylinder body.

The oil port is connected with the hydraulic pump through the hydraulic oil pipe.

The clamping device is a clamping panel or a U-shaped groove clamping block.

The device also includes a return spring, the return spring is arranged in the upper chamber or/and the lower chamber, and the two ends of the return spring are respectively connected and fixed with the piston and the inner wall of the cylinder.

In summary, the utility model has the following beneficial effects: the device is improved on the basis of the existing structure, through a single-cylinder single-piston structure, and a fixed bracket that replaces another piston is added, so that the fixed bracket and the piston rod Cooperating with the axial clamping of the steel bar connector, the product structure is simplified and the production cost is saved.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1 is a schematic structural view of Embodiment 1.

Fig. 2 is a schematic structural diagram of the U-shaped groove clamping block in the first embodiment.

Fig. 3 is a schematic view of the use state of the first embodiment.

Fig. 4 is a schematic structural diagram of the second embodiment.

Fig. 5 is a schematic structural diagram of the second embodiment.

Fig. 6 is a schematic structural diagram of the second embodiment.

In the figure, 1 cylinder block, 2 upper oil port, 3 lower oil port, 4 hydraulic oil pipe, 5 hydraulic pump, 6 upper chamber, 7 lower chamber, 8 piston rod, 9 fixed bracket, 10 U-shaped groove clamping block, 11 pistons, 12 return springs, 13 steel bar connectors, 14 steel bars.

detailed description

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

Embodiment one

According to the accompanying drawings 1, 2 and 3: the utility model provides a new clamping device for a steel bar connector, which mainly includes a cylinder 1 and a hydraulic pump 5, wherein the cylinder 1 is divided into an upper chamber 6 and the lower chamber 7, the upper chamber 6 and the lower chamber 7 are separated by a piston 11, the bottom side of the piston 11 is provided with a piston rod 8, the piston rod 8 is an L-shaped structure as a whole, and one end of the piston rod 8 is connected to the bottom of the piston 11. The bottom surface is connected and fixed, the other end of the piston rod 8 is set through the side wall of the cylinder body 1 and the end is provided with a clamping device, so that the bending part and the end of the piston rod 8 are all arranged on the outside of the cylinder body 1; 1 is provided with a fixed bracket 9 on the outside, and the fixed bracket 9 has an L-shaped structure as a whole. One end of the fixed bracket 9 is connected and fixed to the outer wall of the cylinder body 1, and the other end of the fixed bracket 9 is set opposite to the piston rod 8, and the end is provided with a clamping device. The two clamping devices on the piston rod 8 and the fixed bracket 9 are kept away from the cylinder body 1 and arranged corresponding to each other in the vertical direction. The clamping device is a clamping panel or a U-shaped groove clamping block 10, and the U-shaped groove clamping block 10 It is used to axially fix the two ends of the steel bar connector 13, and perform clamping operations on the steel bar connector 13 as a whole, and the clamping panel can be used to install other structural parts, so that the device can complete other similar clamping operations , increasing the utility of the device.

The outer side of the cylinder 1 is provided with an upper oil port 2 communicating with the upper chamber 6 and a lower oil port 3 communicating with the lower chamber 7, and the upper oil port 2 and the lower oil port 3 are connected to the hydraulic pump 5 through the hydraulic oil pipe 4 connected, the hydraulic pump 5 can provide oil for the upper chamber 6 and the lower chamber 7 through the upper oil port 2 and the lower oil port 3, so that the pressure of the oil liquid pushes the piston 11 to move.

Through the above structure, during the use of the device, firstly, the clamping part of the steel bar connector 13 is positioned and fixed by the piston rod 8 and the U-shaped groove clamping block 10 at the end of the fixed bracket 9, so that the steel bar 14 passes through the U-shaped The groove clamping block 10 is set, and then the hydraulic oil is input at the lower oil port 3 through the hydraulic pump 5, so that the lower chamber 7 drives the piston 11 to move upward under the action of oil pressure, so that the two U-shaped groove clamping blocks 10 pair steel bars The connector 13 carries out the axial clamping operation. After the operation is completed, the hydraulic oil is input into the upper oil port 2 through the hydraulic pump 5, so that the upper chamber 6 drives the piston 11 to move downward under the action of oil pressure, so that the piston rod 8 The U-shaped groove clamping block 10 at the end loosens the clamping of the steel bar connector 13, and then the steel bar connector 13 can be removed.

Embodiment two

According to accompanying drawings 4, 5, 6: the difference from Embodiment 1 is that a return spring 12 is also provided in the upper chamber 6 or/and the lower chamber 7, and the two ends of the return spring 12 are connected to the piston 11 respectively. It is connected and fixed with the inner wall of the cylinder body 1;

If a single return spring 12 is provided, the return spring 12 can be located in the upper chamber 6 or the lower chamber 7. Before the return spring 12 is installed, the position of the piston 11 is fixed according to the needs of use, and then the return spring 12 of the appropriate model is selected for installation, so that the return spring 12 can be reset. The spring 12 is in the initial state; if two return springs 12 are provided, the two return springs 12 are respectively arranged in the upper chamber 6 and the lower chamber 7, and the position of the piston 11 is fixed according to the needs of use before installation, and then an appropriate spring is selected. The return spring 12 of the model is installed so that the two return springs 12 are in the initial state.

The installation of the return spring 12 is mainly used for the reset of the piston 11. After the device completes the axial clamping operation of the steel bar connector 13, the hydraulic pump 5 is turned off, so that the piston 11 is reset under the deformation of the return spring 12, thereby Make the clamping device at the end of the piston rod 8 loosen the clamping of the steel bar connector 13, and take off the steel bar connector 13 to get final product.

The above descriptions are only the preferred implementation modes of the present utility model, as long as the purpose and technical solutions of the present utility model are realized by basically the same means, they all fall within the protection scope of the present utility model.

Claims (5)

1. a Novel steel bar connector clamp device, comprise cylinder body and oil hydraulic pump, it is characterized in that: described cylinder interior is divided into upper chamber and lower chambers, separated by piston between upper chamber and lower chambers, piston side is provided with piston rod, piston rod one end and piston are connected and fixed, the piston rod the other end arranges through cylinder side wall and this end is provided with clamp device, fixed support is provided with outside described cylinder body, fixed support one end and outer wall of cylinder block are connected and fixed, and the fixed support the other end and piston rod are oppositely arranged and this end is provided with clamp device.

2. a kind of Novel steel bar connector clamp device according to claim 1, is characterized in that: be respectively equipped with the hydraulic fluid port communicated with upper chamber and lower chambers outside described cylinder body.

3. a kind of Novel steel bar connector clamp device according to claim 2, is characterized in that: described hydraulic fluid port is connected with oil hydraulic pump by hydraulic oil pipe.

4. a kind of Novel steel bar connector clamp device according to claim 1, is characterized in that: described clamp device is clamping panel or U-type groove clamp.

5. a kind of Novel steel bar connector clamp device according to Claims 1-4 any one, it is characterized in that: further comprises Returnning spring, Returnning spring is arranged on upper chamber or/and bottom chamber, and Returnning spring two ends are connected and fixed with piston and inboard wall of cylinder block respectively.