Steel bar stretcher with good protectiveness

Abstract

The utility model relates to the technical field of reinforcing steel bar stretching machines, and discloses a reinforcing steel bar stretching machine with good protectiveness, which comprises a placing table, a placing groove is formed in the placing table, a lifting mechanism is fixedly connected in the placing groove, and a U-shaped plate A is fixedly connected to the surface of the lifting mechanism. The top of the placing table is fixedly connected with four sets of supporting rods, and the tops of the supporting rods are fixedly connected with a top plate. According to the reinforcing steel bar stretcher with the good protectiveness, through the arrangement of the protection mechanism, during operation, a hydraulic rod B on one side of the top plate is started, the hydraulic rod B drives a transparent protection cover at the bottom to move downwards till a threaded connection plate is shielded, workers are protected, and the situation that reinforcing steel bars are broken when the reinforcing steel bars are stretched is avoided; when the reinforcing steel bar works, fragments of the reinforcing steel bar fly out and hurt surrounding workers, and the transparent protective cover is made of a transparent material, so that the workers can visually know the operation process and deal with emergencies in time.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar stretching machines, in particular to a steel bar stretching machine with good protection. Background Art

[0002] Steel bars and concrete are the main materials that constitute building structures. There is good bonding between steel bars and concrete. The temperature linear expansion coefficients of steel bars and concrete are similar. More importantly, the steel bars are wrapped in concrete to avoid corrosion from the external environment. Concrete plays a good protective role for the steel bars. Among building structural materials, steel bars are an important component. The quality of steel bar performance directly affects the applicability and safety of the structure. Therefore, the quality requirements of steel bars are very high. Before steel bars are used in engineering construction, necessary performance tests are required. Among them, the tensile strength, elongation and yield strength of steel bars are the three most basic mechanical performance indicators of steel bars, and these three indicators are obtained through steel bar tensile tests. Therefore, the accuracy of steel bar tensile testing is crucial. Therefore, when the steel bars are stretched, the steel bars may break. Once a break occurs, the steel bar fragments may fly out and cause harm to the surrounding staff. Therefore, a steel bar stretching machine with good protection is proposed.

[0003] A steel bar tensile testing machine disclosed in the publication number CN213422803U, although, the steel bar tensile testing machine includes a box body, the bottom of the box body is fixedly connected with a wheel, the bottom inner wall of the box body is fixedly connected with a motor, the output end of the motor is fixedly connected with the bottom end of the connecting shaft, the top of the connecting shaft is fixedly connected with two sets of driving wheels, the driving wheels are connected to the driven wheels through belts, and the driven wheels are fixedly connected with the threaded cylinder. The steel bar tensile testing machine facilitates the lifting and lowering of the moving plate through the cooperation of the motor, the connecting shaft, the driving wheel, the belt, the driven wheel, the threaded cylinder, the threaded rod and the fixed shaft, and can stretch the steel bar. Through the cooperation of the fixed block, the clamping seat, the connecting plate, the limit rod and the hydraulic cylinder, the steel bar can be automatically clamped, which improves the work efficiency and reduces the labor cost. The second spring is used to protect the steel bar to avoid excessive force and damage to the steel bar.

[0004] However, the steel bar tensile testing machine has the following disadvantages: when in use, it is not easy to protect the surrounding workers, and once the steel bar breaks, the steel bar fragments may fly out and cause harm to the surrounding workers. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem solved by the utility model is to provide a steel bar stretching machine with high practicality, simple operation, and good protection, thereby solving the problem of difficulty in protecting surrounding workers in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a steel bar stretching machine with good protection, including a placing table, a placing groove is opened inside the placing table, a lifting mechanism is fixedly connected to the inside of the placing groove, a U-shaped plate A is fixedly connected to the surface of the lifting mechanism, four groups of support rods are fixedly connected to the top of the placing table, a top plate is fixedly connected to the top of the support rods, a U-shaped plate B is fixedly connected to the bottom of the top plate, the surfaces of the U-shaped plate A and the U-shaped plate B are fixedly connected to the clamping mechanism, and a protective mechanism is fixedly connected to one side of the top plate.

[0009] As a further solution of the utility model, the lifting mechanism includes a servo motor fixedly connected to the inside of the placement slot, the output end of the servo motor is splined with a transmission rod, one end of the transmission rod is fixedly connected to a main gear, the surface of the main gear is meshed with an auxiliary gear, one end of the auxiliary gear is fixedly connected to a lead screw, the surface of the lead screw is threadedly connected to a threaded connecting plate, the threaded connecting plate is slidably connected to the surface of the support rod, and the connecting plate is convenient for supporting the U-shaped plate A.

[0010] As a further solution of the utility model, the clamping mechanism includes a left fixed ring fixedly connected to the surfaces of the U-shaped plate A and the U-shaped plate B, one side of the two left fixed rings are fixedly connected with four groups of buffer springs, one end of the two four groups of buffer springs are fixedly connected with a right fixed ring, and one end of the two right fixed rings are fixedly connected with a hydraulic rod A, which is convenient for providing power.

[0011] As a further solution of the utility model, the protective mechanism includes a hydraulic rod B fixedly connected to one side of the top plate, and the bottom of the hydraulic rod B is fixedly connected to a transparent protective cover, which is convenient for protecting the staff.

[0012] As a further solution of the utility model, a connecting block is fixedly connected to one side of the top plate, a limiting rod is fixedly connected to the bottom of the connecting block, and the limiting rod is fixedly connected to the surface of the transparent protective cover, so that the limiting rod can support the transparent protective cover.

[0013] As a further solution of the utility model, a sealed door is hinged on the front of the placement table through a hinge, and a handle is fixedly connected to the surface of the sealed door, and the handle is convenient for opening the sealed door.

[0014] As a further solution of the utility model, the bottom of the placement table is in a rectangular array and fixedly connected with four groups of support legs, and the surfaces of the four support legs are all sleeved with anti-slip sleeves, which are convenient for anti-slip.

[0015] (III) Beneficial effects

[0016] The utility model provides a steel bar stretching machine with good protection, which has the following beneficial effects:

[0017] 1. The steel bar stretching machine with good protection, through the setting of the protection mechanism, starts the hydraulic rod B on one side of the top plate during operation, and the hydraulic rod B drives the transparent protective cover at the bottom to move downward until the threaded connecting plate is covered to protect the staff, so as to avoid the steel bar from breaking when the steel bar is stretched, and the steel bar fragments will fly out and cause harm to the surrounding staff. In addition, the transparent protective cover is made of transparent material, so the staff can intuitively understand the operation process and deal with emergencies in time.

[0018] 2. The steel bar stretching machine with good protection is provided with a lifting mechanism and a clamping mechanism. When in use, the steel bar is placed in the middle of the left fixing ring and the right fixing ring on the surface of the U-shaped plate A and the U-shaped plate B, and then the hydraulic rod A on one side of the right fixing ring is started. The hydraulic rod A pushes the right fixing ring to clamp the steel bar in the middle, and then the servo motor is started. The servo motor drives the main gear on one side and the auxiliary gear meshing on the surface to rotate, so that the threaded connecting plate on the screw rod on the surface of the auxiliary gear moves up and down on the screw rod. Therefore, the U-shaped plate A on the threaded connecting plate will move up and down with the threaded connecting plate, thereby realizing the stretching operation of the steel bar, and by adjusting the height of the threaded connecting plate, the tensile test of steel bars of different lengths can be realized, thereby improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the protection mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0023] In the figure: 1. placing table; 2. lifting mechanism; 201. servo motor; 202. transmission rod; 203. main gear; 204. auxiliary gear; 205. screw rod; 206. threaded connecting plate; 3. U-shaped plate A; 4. supporting rod; 5. top plate; 6. U-shaped plate B; 7. clamping mechanism; 701. left fixing ring; 702. buffer spring; 703. right fixing ring; 704. hydraulic rod A; 8. protective mechanism; 801. hydraulic rod B; 802. transparent protective cover; 9. connecting block; 10. limit rod; 11. sealing door; 12. handle; 13. supporting leg. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a steel bar stretching machine with good protection, comprising a placing table 1, a placing groove is provided inside the placing table 1, a lifting mechanism 2 is fixedly connected inside the placing groove, and the height of the threaded connecting plate 206 is adjusted by setting the lifting mechanism 2 and the clamping mechanism 7, so that the tensile test of steel bars of different lengths can be realized, thereby improving the practicability of the equipment, a U-shaped plate A3 is fixedly connected to the surface of the lifting mechanism 2, four groups of support rods 4 are fixedly connected to the top of the placing table 1, a top plate 5 is fixedly connected to the top of the support rod 4, a U-shaped plate B6 is fixedly connected to the bottom of the top plate 5, the surfaces of the U-shaped plates A3 and B6 are fixedly connected to the clamping mechanism 7, and a protective mechanism 8 is fixedly connected to one side of the top plate 5, and the setting of the protective mechanism 8 can prevent the steel bars from breaking when the steel bars are stretched, and the steel bar fragments will fly out and cause harm to the surrounding staff, and the transparent protective cover 802 is made of transparent material, so that the staff can intuitively understand the operation process and deal with the emergency situation in time;

[0026] See also Figure 2 The lifting mechanism 2 includes a servo motor 201 fixedly connected to the inside of the placement slot, the output end of the servo motor 201 is splined with a transmission rod 202, one end of the transmission rod 202 is fixedly connected to a main gear 203, the surface of the main gear 203 is meshed with an auxiliary gear 204, one end of the auxiliary gear 204 is fixedly connected to a screw rod 205, the surface of the screw rod 205 is threadedly connected to a threaded connecting plate 206, and the threaded connecting plate 206 is slidably connected to the surface of the support rod 4;

[0027] See also Figure 4The clamping mechanism 7 includes a left fixing ring 701 fixedly connected to the surface of the U-shaped plate A3 and the U-shaped plate B6, one side of the two left fixing rings 701 is fixedly connected to four groups of buffer springs 702, one end of the two four groups of buffer springs 702 is fixedly connected to a right fixing ring 703, and one end of the two right fixing rings 703 is fixedly connected to a hydraulic rod A704;

[0028] See also Figure 3 The protection mechanism 8 includes a hydraulic rod B801 fixedly connected to one side of the top plate 5, and a transparent protective cover 802 is fixedly connected to the bottom of the hydraulic rod B801;

[0029] See also Figure 3 A connecting block 9 is fixedly connected to one side of the top plate 5, a limiting rod 10 is fixedly connected to the bottom of the connecting block 9, and the limiting rod 10 is fixedly connected to the surface of the transparent protective cover 802;

[0030] See also Figure 1 A sealed door 11 is hinged on the front of the placement table 1, and a handle 12 is fixedly connected to the surface of the sealed door 11.

[0031] See also Figure 1 The bottom of the placement table 1 is in a rectangular array and is fixedly connected with four groups of support legs 13, and the surfaces of the four support legs 13 are all sleeved with anti-slip sleeves.

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: When working, start the hydraulic rod B801 on one side of the top plate 5, and the hydraulic rod B801 drives the transparent protective cover 802 at the bottom to move downward until the threaded connecting plate 206 is covered to protect the workers;

[0034] The second step: when in use, place the steel bar in the middle of the left fixing ring 701 and the right fixing ring 703 on the surface of the U-shaped plate A3 and the U-shaped plate B6, and then start the hydraulic rod A704 on one side of the right fixing ring 703. The hydraulic rod A704 pushes the right fixing ring 703 to clamp the steel bar in the middle, and then start the servo motor 201. The servo motor 201 drives the main gear 203 on one side and the auxiliary gear 204 meshing on the surface to rotate, thereby making the threaded connecting plate 206 on the screw rod 205 on the surface of the auxiliary gear 204 move up and down on the screw rod 205. Therefore, the U-shaped plate A3 on the threaded connecting plate 206 will move up and down with the threaded connecting plate 206, thereby realizing the stretching operation of the steel bar.

[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0036] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar stretching machine with good protection, comprising a placement table (1), characterized in that: The placing table (1) has a placing groove formed inside, a lifting mechanism (2) is fixedly connected inside the placing groove, a U-shaped plate A (3) is fixedly connected to the surface of the lifting mechanism (2), four groups of support rods (4) are fixedly connected to the top of the placing table (1), a top plate (5) is fixedly connected to the top of the support rods (4), a U-shaped plate B (6) is fixedly connected to the bottom of the top plate (5), a clamping mechanism (7) is fixedly connected to the surfaces of the U-shaped plate A (3) and the U-shaped plate B (6), and a protective mechanism (8) is fixedly connected to one side of the top plate (5).

2. A steel bar stretching machine with good protection according to claim 1, characterized in that: The lifting mechanism (2) comprises a servo motor (201) fixedly connected to the inside of the placement slot, the output end of the servo motor (201) is spline-connected to a transmission rod (202), one end of the transmission rod (202) is fixedly connected to a main gear (203), the surface of the main gear (203) is meshed with an auxiliary gear (204), one end of the auxiliary gear (204) is fixedly connected to a lead screw (205), the surface of the lead screw (205) is threadedly connected to a threaded connection plate (206), and the threaded connection plate (206) is slidably connected to the surface of the support rod (4).

3. A steel bar stretching machine with good protection according to claim 1, characterized in that: The clamping mechanism (7) comprises a left fixing ring (701) fixedly connected to the surface of the U-shaped plate A (3) and the U-shaped plate B (6); one side of the two left fixing rings (701) is fixedly connected to four groups of buffer springs (702); one end of the two groups of buffer springs (702) is fixedly connected to a right fixing ring (703); and one end of the two right fixing rings (703) is fixedly connected to a hydraulic rod A (704).

4. A steel bar stretching machine with good protection according to claim 1, characterized in that: The protective mechanism (8) comprises a hydraulic rod B (801) fixedly connected to one side of the top plate (5), wherein the bottom of the hydraulic rod B (801) is fixedly connected to a transparent protective cover (802).

5. A steel bar stretching machine with good protection according to claim 1, characterized in that: A connection block (9) is fixedly connected to one side of the top plate (5), a limit rod (10) is fixedly connected to the bottom of the connection block (9), and the limit rod (10) is fixedly connected to the surface of the transparent protective cover (802).

6. A steel bar stretching machine with good protection according to claim 1, characterized in that: A sealed door (11) is hingedly connected to the front of the placement table (1), and a handle (12) is fixedly connected to the surface of the sealed door (11).

7. A steel bar stretching machine with good protection according to claim 1, characterized in that: The bottom of the placement table (1) is in a rectangular array and is fixedly connected with four groups of support legs (13), and the surfaces of the four support legs (13) are all sleeved with anti-slip sleeves.

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