CN111119492A - Device for lengthening steel bar embedded part - Google Patents
Device for lengthening steel bar embedded part Download PDFInfo
- Publication number
- CN111119492A CN111119492A CN202010100734.2A CN202010100734A CN111119492A CN 111119492 A CN111119492 A CN 111119492A CN 202010100734 A CN202010100734 A CN 202010100734A CN 111119492 A CN111119492 A CN 111119492A
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- Prior art keywords
- rotating shaft
- steel bar
- embedded part
- pair
- lengthening
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000000452 restraining effect Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of construction tools, and provides a device for lengthening a steel bar embedded part. This device of extension reinforcing bar built-in fitting includes: the supporting frame is provided with a fixing device for fixing the supporting frame; a rotating shaft mounted to the support frame, the rotating shaft extending in a vertical direction, the rotating shaft being configured to be circumferentially rotatable; a handle disposed at an upper portion of the rotation shaft, the handle being for rotating the rotation shaft; the screw die is fixed on the lower part of the rotating shaft along the axial direction of the rotating shaft and is used for threading a steel bar embedded part; the lengthened screw rod assembly is detachably connected to the supporting frame, and the disassembled lengthened screw rod is used for being installed to a steel bar embedded part for completing threading. The invention aims to provide a lengthening device of a screw embedded part, which can conveniently and quickly lengthen a reinforcing steel bar embedded part.
Description
Technical Field
The invention relates to the field of construction tools, in particular to a device for lengthening a steel bar embedded part.
Background
During building construction, the steel bar embedded parts are common embedded parts. However, constructors often encounter unexpected situations where the lengths of the steel bar embedded parts are short. For example, the portion of the rebar embedment exposed from the concrete is too short for proper use. For another example, the exposed part of the embedded part of the steel bar is damaged, and if the damaged part is cut off, the rest part of the embedded part of the steel bar is not long enough, so that the embedded part of the steel bar cannot be used normally.
Therefore, in order to solve the problem that the exposed part of the steel bar embedded part is too short or the exposed part is damaged, an effective solution is to connect the exposed part of the steel bar embedded part to the lengthening screw rod, so as to prolong the length of the steel bar embedded part.
Disclosure of Invention
In order to enable the lengthening work of the steel bar embedded part to be convenient and fast, the invention provides a device for lengthening the steel bar embedded part.
Above-mentioned device of extension reinforcing bar built-in fitting includes: the supporting frame is provided with a fixing device for fixing the supporting frame; a rotating shaft mounted to the support frame, the rotating shaft extending in a vertical direction, the rotating shaft being configured to be circumferentially rotatable; a handle disposed at an upper portion of the rotation shaft, the handle being for rotating the rotation shaft; the screw die is fixed on the lower part of the rotating shaft along the axial direction of the rotating shaft and is used for threading a steel bar embedded part; the lengthened screw rod assembly is detachably connected to the supporting frame, and the disassembled lengthened screw rod is used for being installed to a steel bar embedded part for completing threading.
According to one embodiment of the invention, the device for lengthening the steel bar embedded part further comprises a water adding device, wherein the water adding device is detachably connected to the upper part of the rotating shaft; and the rotating shaft is configured into a tubular structure so that the water adding device is communicated with the screw die.
According to one embodiment of the invention, a support stand comprises: a foot rest; a first pair of limit rods fixed to the foot rest; the second limiting rod pair is fixed above the first limiting rod pair; the first limiting rod pair and the second limiting rod pair are arranged along the mutually crossed directions to form a limiting hole, the rotating shaft penetrates through the limiting hole, and the limiting hole limits the radial movement of the rotating shaft.
According to one embodiment of the invention, the first pair of stopper rods is detachably fixed to the foot rest, and the second pair of stopper rods is detachably fixed to the first pair of stopper rods.
According to one embodiment of the invention, the first pair of stopper rods is connected to the foot rest by a U-bolt, and the second pair of stopper rods is connected to the first pair of stopper rods by a U-bolt.
According to one embodiment of the invention, the dies are detachably connected to the rotary shaft.
According to one embodiment of the invention, the lower part of the rotary shaft is provided with radial adjusting bolts for connecting the dies with the rotary shaft.
According to one embodiment of the present invention, the upper portion of the rotating shaft is provided with a through hole in a radial direction, and the handle is detachably inserted through the through hole.
According to one embodiment of the invention, an extension screw assembly comprises: a screw; the first nut is connected to the screw rod; one end of the sleeve is connected to the screw and abutted to the first nut, and the other end of the sleeve is used for being connected to a steel bar embedded part for completing threading; and the second nut is used for being connected to the steel bar embedded part which completes the threading and abutting against the other end of the sleeve.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
the support frame can keep the rotating shaft in a vertical state; the rotating shaft is controlled to rotate by operating the handle, and threading of the reinforcing steel bar embedded part by the threading die is further controlled; then the lengthening screw rod component is connected to the steel bar embedded part after threading is finished, and the steel bar embedded part can be lengthened. Therefore, the device for lengthening the steel bar embedded part enables the lengthening work of the steel bar embedded part to be convenient and fast.
Drawings
FIG. 1 is a schematic side view of an apparatus for lengthening a rebar embedment in accordance with one embodiment of the present invention;
FIG. 2 is a schematic top view of an apparatus for lengthening a rebar embedment in accordance with one embodiment of the present invention;
FIG. 3 is a schematic view of an elongated rebar embedment in one embodiment of the present invention.
Reference numerals:
10. a support frame; 102. a fixing device; 104. a foot rest; 106. a first pair of stop levers; 1062. a first limit rod; 1064. a second limiting rod; 108. a second pair of stop levers; 1082. a third limiting rod; 1084. a fourth limiting rod; 110. a limiting hole; 12. a rotating shaft; 122. adjusting the bolt; 14. a handle; 16. a threading die; 18. lengthening the screw rod assembly; 182. a screw; 184. a first nut; 186. a sleeve; 188. a second nut; 20. a water adding device; 202. an installation part; 204. a water inlet part; 22. u-shaped bolt.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The invention provides a device for lengthening a steel bar embedded part, which comprises a support frame 10, a rotating shaft 12, a handle 14, a threading die 16 and a lengthening screw rod assembly 18. The stand 10 is provided with a fixing device 102 for fixing the stand 10. A rotary shaft 12 is attached to the support frame 10, the rotary shaft 12 extending in a vertical direction, the rotary shaft 12 being configured to be circumferentially rotatable. A handle 14 is provided at an upper portion of the rotation shaft 12, and the handle 14 is used to rotate the rotation shaft 12. The dies 16 are fixed to the lower portion of the rotating shaft 12 along the axial direction of the rotating shaft 12, and the dies 16 are used for threading reinforcing steel bar embedded parts. An extension screw assembly 18 is removably attached to the support frame 10, the removed extension screw assembly 18 being used to mount to a threaded rebar embedment.
In this embodiment, the support frame 10, the rotating shaft 12, the handle 14 and the extension screw assembly 18 are made of metal materials. Therefore, the support frame 10 can withstand a large force from the rotary shaft 12, for example, a pressure force from the radial direction of the rotary shaft 12.
In this embodiment, the fixing device 102 may include a metal plate having a hole, which is fixed (e.g., welded) to the bottom of the support stand 10. When the support frame 10 needs to be fixed, the support frame 10 can be fixed only by inserting the steel bars into the holes of the metal plates and implanting the steel bars into the concrete.
In this embodiment, the rotary shaft 12 is a vertically long rod, the upper and lower portions of the rotary shaft 12 are opposite portions, and the upper portion of the rotary shaft 12 is higher than the height of the support frame 10. The rotation shaft 12 is restricted in movement in the horizontal direction (or in movement in the radial direction), and is movable only in the vertical direction (or the axial direction) and the circumferential direction.
In the present embodiment, the handle 14 is connected to an upper portion of the rotation shaft 12 in a radial direction of the rotation shaft 12. Of course, the handle 14 is also located above the support stand 10. By rotating the handle 14 in the circumferential direction of the rotary shaft 12, the rotary shaft 12 can be rotated in the circumferential direction accordingly.
In the present embodiment, at least the lower portion of the rotary shaft 12 is provided in a tubular structure, the diameter of the die 16 may be smaller than that of the rotary shaft 12, and the die 16 is fitted and fixed in the lower portion of the rotary shaft 12 in the axial direction of the rotary shaft 12. In other embodiments, the dies 16 may be fixed to the bottom end of the rotating shaft 12 (i.e., the end of the rotating shaft 12 facing the rebar embedment) along the axial direction of the rotating shaft 12; of course, the axis of the cutting die 16 is collinear with the axis of the rotary shaft 12.
In this embodiment, the extension screw assembly 18 is removably attached to the support frame 10. Thus, the extension screw assembly 18 may be readily available as needed. In other embodiments, a plurality of lengthening screw assemblies 18 of the same or different types can be arranged on the support frame 10, so that the requirements of constructors in handling different working conditions are met, and the lengthening work of the steel bar embedded parts is convenient and quick.
In one embodiment of the present invention, the device for lengthening the steel bar embedded part further comprises a water adding device 20, wherein the water adding device 20 is detachably connected to the upper part of the rotating shaft 12; and the rotary shaft 12 is configured in a tubular structure to communicate the water adding means 20 to the dies 16.
In this embodiment, the rotary shaft 12 is entirely configured as a tubular structure, so that the cooling water fed through the water feeding device 20 can flow through the pipe body to the portion where the die 16 is located.
In the present embodiment, the watering device 20 is configured as a tubular structure, and one end of the watering device 20 is a mounting portion 202, and the mounting portion 202 is detachably connected to the upper portion of the rotating shaft 12. Therefore, the constructor can flexibly select whether to install the watering device 20 according to the actual use requirement. And the other end of the watering device 20 is a water inlet portion 204, and the water inlet portion 204 is used for inputting cooling water into the watering device 20. In one embodiment, a water storage device (e.g., a water bottle, a small water tank, a water bag, etc.) may be connected to the water inlet 204. In one embodiment, the water duct may be directly connected to the water inlet 204. In addition, one or more small holes (not shown) are provided inside the tube body of the watering device 20. The small holes can be used for controlling the flow rate and the flow velocity of the cooling water so as to improve the cooling efficiency of the water adding device 20.
In one embodiment of the present invention, the supporting frame 10 comprises a foot stand 104, a first pair of stop bars 106, and a second pair of stop bars 108. A first pair of stop bars 106 is fixed to the foot stand 104. The second pair of stop bars 108 is fixed above the first pair of stop bars 106. The first limiting rod pair 106 and the second limiting rod pair 108 are disposed along a direction intersecting with each other to form a limiting hole 110, the rotating shaft 12 is disposed through the limiting hole 110, and the limiting hole 110 limits the rotating shaft 12 to move radially.
In the present invention, the first stopper rod pair 106 includes a first stopper rod 1062 and a second stopper rod 1064 which are parallel to each other and are not collinear, and a space is provided between the first stopper rod 1062 and the second stopper rod 1064. The second pair of stop bars 108 includes a third stop bar 1082 and a fourth stop bar 1084 that are parallel and non-collinear with a space between the third stop bar 1082 and the fourth stop bar 1084. The first stopper rod pair 106 and the second stopper rod pair 108 are arranged in a direction crossing each other, so that the first stopper rod pair 106 and the second stopper rod pair 108 together form a quadrangular stopper hole 110. The rotating shaft 12 is disposed in the stopper hole 110, and the stopper hole 110 may restrict the rotating shaft 12 from moving in a radial direction thereof; alternatively, the stopper hole 110 may restrict the movement of the rotary shaft 12 in the horizontal direction. Of course, if the rotating shaft 12 is to be installed, the rotating shaft 12 may be inserted into the stopper hole 110. The embodiment actually limits the radial movement of the rotating shaft 12 through four limiting rods, the whole structure is simple, the operation is convenient, and the lengthening work of the steel bar embedded part is also convenient and fast.
In one embodiment of the invention, the first pair of restraining bars 106 is removably secured to the foot rest 104 and the second pair of restraining bars 108 is removably secured to the first pair of restraining bars 106.
In the present invention, by detachably fixing the first stopper rod pair 106 to the foot stand 104, the position of the rotary shaft 12 in one direction can be adjusted by adjusting the position of the first stopper rod pair 106. By detachably fixing the second stopper rod pair 108 to the first stopper rod pair 106, the position of the rotary shaft 12 in the other direction can be adjusted by adjusting the position of the second stopper rod pair 108. That is, the position of the rotating shaft 12 can be adjusted only by adjusting the position of the first and/or second limiting rod pairs 106 and 108, but not by adjusting the position of the supporting frame 10.
In one embodiment of the invention, the first pair of restraining bars 106 is connected to the foot rest 104 by a U-bolt 22 and the second pair of restraining bars 108 is connected to the first pair of restraining bars 106 by a U-bolt 22.
In the present embodiment, the first stopper rod pair 106 and the second stopper rod pair 108 are fixed more firmly by using the U-bolt 22. Furthermore, the use of U-bolts 22 avoids the need to make threaded holes in the foot 104 as opposed to straight shaped bolts. Also, the position of the rotary shaft 12 can be adjusted easily and quickly.
In one embodiment of the present invention, the dies 16 are removably secured to the rotating shaft 12.
In this embodiment, since the diameters of the rebar embedments are often different, different models of dies 16 need to be replaced often. The screw die 16 is detachably fixed with the rotating shaft 12, so that the screw die 16 of different types can be conveniently replaced on the rotating shaft 12.
In one embodiment of the present invention, the lower portion of the rotating shaft 12 is provided with a radial adjusting bolt 122, and the adjusting bolt 122 is used for fixing the die 16.
In the present embodiment, the adjusting bolt 122 extends along the radial direction of the rotating shaft 12, and by rotating the adjusting bolt 122, the adjusting bolt 122 can move in the radial direction of the rotating shaft 12, thereby facilitating the removal and installation of the dies 16. For example, in one embodiment, the die 16 is secured to the rotating shaft 12 or captured within the rotating shaft 12 by rotating the adjustment bolt 122 such that the adjustment bolt 122 abuts and captures a side wall of the die 16. For example, in another embodiment, by rotating the adjustment bolt 122 such that the adjustment bolt 122 moves away from the axis of rotation 12, the die 16 is no longer captured by the adjustment bolt 122 and can be removed. The screw die 16 is disassembled and assembled through the adjusting bolt 122, the structure of the rotating shaft 12 is simplified, the screw die 16 is also convenient to disassemble and assemble, and the lengthening work of the steel bar embedded part is also convenient and fast.
In one embodiment of the present invention, the upper portion of the rotating shaft 12 is provided with a through hole in a radial direction, and the handle 14 is detachably inserted through the through hole.
In the present embodiment, since the handle 14 is detachably connected to the through hole, different handles 14 can be installed based on different operating conditions. For example, in one embodiment, when a certain embedded steel bar part needs to exert a larger force to perform threading, a longer handle 14 can be installed in the through hole to increase the moment arm; or a thicker handle 14 may be installed so that the handle 14 can withstand a larger force, thereby facilitating the use of the constructor.
In other embodiments, the handle 14 may be a steel bar that passes through the through hole and has two ends that extend out of the through hole. If a longer handle 14 is needed, a circular tube with an inner diameter slightly larger than that of the steel bar can be sleeved at the two ends of the steel bar respectively to increase the length of the handle and further increase the length of the force arm.
In one embodiment of the present invention, the extension screw assembly 18 includes: a screw 182, a first nut 184, a sleeve 186 and a second nut 188. A first nut 184 is connected to the screw 182. One end of a sleeve 186 is connected to the threaded rod 182 and abuts against the first nut 184, and the other end of the sleeve 186 is used to connect to a threaded rebar embedment. A second nut 188 is used to connect to the threaded rebar embedment and to abut the other end of the sleeve 186.
In this embodiment, the sleeve 186 has a fixed length, and when the threaded rod 182 is attached to the sleeve, the portion for attaching the (threaded) rebar embedment is shorter if the portion of the threaded rod 182 that occupies the sleeve 186 is longer. Therefore, the threaded rod 182 is excessively connected with the sleeve 186, and the threaded embedded steel bar part is insufficiently connected with the sleeve 186, so that the problem that the overall structure of the threaded embedded steel bar part is unstable and weak after the threaded embedded steel bar part is lengthened is caused. The first nut 184 has a limiting function, and prevents insufficient connection between the sleeve 186 and the sleeve 186 due to excessive connection between the sleeve 186 and the screw 182. Similarly, the second nut 188 has a limiting function, so that the insufficient connection between the screw 182 and the sleeve 186 due to the excessive connection between the sleeve 186 and the steel bar embedded part after threading is prevented. Thus, the first and second nuts 184 and 188 allow the ends of the sleeve 186 to be attached to the threaded rod 182 and the proper location of the (threaded) rebar embedment.
In this embodiment, the threaded rod 182 is the same strength as the rebar embedment. In other embodiments, the threaded rod 182 is greater than the strength of the rebar embedment, or less than the strength of the rebar embedment.
The following describes the method of using the device for lengthening the embedded part of the reinforcing steel bar according to the invention with reference to the attached drawings of the specification and fig. 1 to 3.
Firstly, after the fact that the steel bar embedded part needs to be lengthened is determined, a proper rhinestone is adopted, and a certain depth is drilled downwards along the steel bar embedded part.
And secondly, chiseling concrete around the steel bar embedded part to form a groove, wherein the steel bar embedded part is positioned in the central area of the bottom of the groove.
And thirdly, cutting the damaged part of the steel bar embedded part. Of course, when the rebar embedment is not damaged, simply because it is too short to be used, it may not be necessary to cut the rebar embedment.
And fourthly, threading the steel bar embedded part. Erecting a support piece above the steel bar embedded part and fixing the support piece on a concrete layer; then inserting the exposed end part of the steel bar embedded part into the threading die 16; handle 14 is then rotated to mantle the rebar embedment. During threading, the rebar embedment generates a large amount of heat, so that the dies 16 and the rebar embedment can be cooled by adding water through the water adding device 20.
And fifthly, lengthening the steel bar embedded part after threading is finished. The first nut 184 is rotated in advance to the proper position of the screw 182; one end of the sleeve 186 is then connected to the screw 182 and rotated until the sleeve 186 abuts the first nut 184; after threading is completed and the embedded part of the steel bar is completely cooled, the second nut 188 is rotated to a proper position of the embedded part of the steel bar; the other end of the sleeve 186 is then connected to the rebar embedment and the integral structure of the sleeve 186, the first nut 184 and the threaded rod 182 is continuously rotated until the sleeve 186 abuts the second nut 188. At this time, the screw 182 is connected to the embedded steel bar part through the sleeve 186, and the whole length of the embedded steel bar part is lengthened.
And seventhly, cleaning concrete slag in the groove after the embedded steel bar part passes acceptance, and then pouring high-strength grouting material in the groove. In a preferred embodiment, the sleeve 186 is located in a recess and is submerged in high strength grout. Of course, necessary anti-cracking measures should be taken when the high-strength grouting material is poured again.
With the above embodiments, the device for lengthening the embedded part of the steel bar has at least the following advantages:
(1) the support frame 10 keeps the rotation shaft 12 in a vertical state. Therefore, the device is simple and convenient to operate;
(2) the rotating shaft 12 can be controlled to rotate only by operating the handle 14, and the threading of the reinforcing steel bar embedded part by the threading die 16 is controlled. Therefore, the number of constructors is small, the operation is convenient and fast, and the working efficiency is high;
(3) the lengthening screw rod assembly 18 is connected to the steel bar embedded part, so that the steel bar embedded part can be lengthened, and the lengthening work of the steel bar embedded part becomes convenient and fast.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A device for lengthening a steel bar embedded part is characterized by comprising:
the supporting frame is provided with a fixing device for fixing the supporting frame;
a rotating shaft mounted to the support frame, the rotating shaft extending in a vertical direction, the rotating shaft being configured to be circumferentially rotatable;
a handle provided at an upper portion of the rotation shaft, the handle for rotating the rotation shaft;
the die is fixed on the lower part of the rotating shaft along the axial direction of the rotating shaft and is used for threading a steel bar embedded part; and
the lengthened screw rod assembly is detachably connected to the supporting frame, and the disassembled lengthened screw rod is used for being installed to a steel bar embedded part for completing threading.
2. The device for lengthening the steel bar embedded part according to claim 1, further comprising a water adding device, wherein the water adding device is detachably connected to the upper part of the rotating shaft; and the rotating shaft is configured into a tubular structure so that the water adding device is communicated with the screw die.
3. The apparatus for lengthening a rebar embedment of claim 1, wherein the support bracket includes:
a foot rest;
a first pair of stop rods fixed to the foot rest;
the second limiting rod pair is fixed above the first limiting rod pair;
the first limiting rod pair and the second limiting rod pair are arranged along the direction of mutual intersection to form a limiting hole, the rotating shaft penetrates through the limiting hole, and the limiting hole limits the radial movement of the rotating shaft.
4. The apparatus of lengthening a rebar embedment of claim 3, wherein the first pair of stop rods is removably secured to the foot stand and the second pair of stop rods is removably secured to the first pair of stop rods.
5. The apparatus for lengthening a rebar embedment of claim 4, wherein the first pair of stop bars is connected to the foot bracket by a U-bolt, and the second pair of stop bars is connected to the first pair of stop bars by a U-bolt.
6. The apparatus of claim 1, wherein the dies are removably coupled to the rotating shaft.
7. The device for lengthening a steel bar embedded part according to claim 6, wherein a radial adjusting bolt is arranged at the lower part of the rotating shaft and is used for connecting the threading die with the rotating shaft.
8. The device for lengthening the steel bar embedded part according to claim 1, wherein a through hole in a radial direction is formed in an upper portion of the rotating shaft, and the handle is detachably inserted into the through hole.
9. The apparatus for lengthening a rebar embedment of claim 1, wherein the extension screw assembly includes:
a screw;
a first nut connected to the screw;
one end of the sleeve is connected to the screw and abutted to the first nut, and the other end of the sleeve is used for being connected to a steel bar embedded part for completing threading;
a second nut for connecting to a rebar embedment that completes the threading and for abutting against the other end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100734.2A CN111119492A (en) | 2020-02-18 | 2020-02-18 | Device for lengthening steel bar embedded part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100734.2A CN111119492A (en) | 2020-02-18 | 2020-02-18 | Device for lengthening steel bar embedded part |
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| CN111119492A true CN111119492A (en) | 2020-05-08 |
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| CN202010100734.2A Pending CN111119492A (en) | 2020-02-18 | 2020-02-18 | Device for lengthening steel bar embedded part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044152A (en) * | 2023-03-10 | 2023-05-02 | 中建四局土木工程有限公司 | Adjustable building construction template fixing device |
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| CN203257079U (en) * | 2012-08-23 | 2013-10-30 | 通州建总集团有限公司 | Scaffold steel tie fixing device |
| CN106541189A (en) * | 2017-01-12 | 2017-03-29 | 兰州理工大学 | Non-adjustable bar diameter manages the manual die handle of the heart and using method |
| CN206415725U (en) * | 2017-01-12 | 2017-08-18 | 兰州理工大学 | Non-adjustable bar diameter manages the manual die handle of the heart |
| CN206415726U (en) * | 2017-01-12 | 2017-08-18 | 兰州理工大学 | The manual die handle of adjustable steel bar diameter |
| CN207003838U (en) * | 2017-05-06 | 2018-02-13 | 梁彩霞 | A kind of construction means for supporting reinforcement steel bar |
| KR200485853Y1 (en) * | 2017-06-12 | 2018-03-06 | 주식회사 어드밴건설 | Fixing apparatus for sleeve installation of reinforced concrete constructions |
| CN209723400U (en) * | 2018-12-21 | 2019-12-03 | 江苏省建筑设计研究院有限公司 | Using a kind of prefabricated integral frame bean column node that sleeve quickly connects |
| CN209578387U (en) * | 2019-03-14 | 2019-11-05 | 陕西建工第一建设集团有限公司 | Thread cutter for steel bar is used in a kind of construction of concrete column |
| CN212002346U (en) * | 2020-02-18 | 2020-11-24 | 中铁建设集团有限公司 | Device for lengthening steel bar embedded part |
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| CN116044152A (en) * | 2023-03-10 | 2023-05-02 | 中建四局土木工程有限公司 | Adjustable building construction template fixing device |
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