CN211114882U - Novel reinforcing bar mechanical connector is supplementary device - Google Patents
Novel reinforcing bar mechanical connector is supplementary device Download PDFInfo
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- CN211114882U CN211114882U CN201921476111.4U CN201921476111U CN211114882U CN 211114882 U CN211114882 U CN 211114882U CN 201921476111 U CN201921476111 U CN 201921476111U CN 211114882 U CN211114882 U CN 211114882U
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- vernier caliper
- graduated scale
- mechanical connector
- scale
- steel bar
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Abstract
A novel auxiliary device of a mechanical connector for reinforcing steel bars comprises a sleeve, wherein two ends of the sleeve are respectively connected with a straight thread end of a reinforcing steel bar, the auxiliary device is two pairs of distance measuring and checking devices, and the two pairs of distance measuring and checking devices are respectively positioned on two sides of the sleeve; the single-pair distance measurement and checking device comprises a left-end vernier caliper, a left-end graduated scale, a right-end vernier caliper and a right-end graduated scale, wherein each vernier caliper is rigidly connected with the clamp, the left-side vernier caliper measures the distance between the joint of the left-side connecting steel bar and the clamping position, and the right-side vernier caliper measures the distance between the joint of the right-side connecting steel bar and the clamping position. The utility model has the advantages of simple structure, convenient operation, high precision and material saving.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering building engineering, specifically provide a novel reinforcing bar mechanical connector is supplementary device.
Background
In recent years, various domestic large-span buildings, high-rise buildings, bridges, hydraulic engineering and the like are rapidly developed, the building industry in China is vigorously developed, reinforced concrete structures are widely applied to building construction, the consumption of reinforcing steel bars is increased day by day, the consumption of reinforcing steel bars per square of some building structures is more than 100kg, and the connection of the reinforcing steel bars becomes one of the keys of structural design and construction.
At present, the mechanical connector of the steel bar is more and more widely applied to engineering construction due to proper cost, simple operation and convenient connection. However, in practical application, some common quality problems are not caused, and the problems of management and operation quality of the steel bar mechanical connector frequently occur in construction. The length of the screw head of the steel bar mechanical connector is controlled disadvantageously: the control of the processing length of the screw heads is poor, the screw heads are different in length, the reinforcing steel bars cannot be screwed to the preset position in the center of the sleeve, and the phenomena of too much exposed wires and no exposed wires occur in site construction; the torsion value of the steel bar mechanical connector is not in accordance with the standard requirement: the on-site steel bar mechanical connector joint is not tightened by a wrench, and the deviation of the central lines of the steel bars at two ends reaches a preset state, so that the effective length of the steel bars entering the sleeve is insufficient.
Disclosure of Invention
In order to overcome the problem that current steel bar mechanical connector exists, the utility model provides a steel bar mechanical connector auxiliary device, this steel bar connection auxiliary device can enough guarantee to connect and closely reach intensity, and simultaneously, convenient operation is swift in the connection process, and the material resources of using manpower sparingly improve the efficiency of connection work.
The utility model provides a technical scheme that technical problem adopted is:
the utility model provides a novel reinforcing bar mechanical connector is supplementary device, reinforcing bar mechanical connector includes the sleeve, telescopic both ends are connected with the straight thread end of reinforcing bar respectively, its characterized in that: the auxiliary device is two pairs of distance measurement and checking devices which are respectively positioned at two sides of the sleeve; the single-pair distance measurement and checking device comprises a left-end vernier caliper, a left-end graduated scale, a right-end vernier caliper and a right-end graduated scale, wherein each vernier caliper is rigidly connected with the clamp, the left-end vernier caliper measures the distance between the joint of the left connecting steel bar and the clamping position, and the right-end vernier caliper measures the distance between the joint of the right connecting steel bar and the clamping position.
Furthermore, the left-end vernier caliper and the left-end graduated scale are connected in a sliding manner through a groove of the left-end graduated scale, and whether the left-end vernier caliper can slide or not is controlled by adjusting an elastic screw on the left-end vernier caliper; the right vernier caliper and the right graduated scale are connected in a sliding manner through a right graduated scale groove, and whether the right vernier caliper can slide or not is controlled by adjusting an elastic screw on the right vernier caliper; the left end graduated scale and the right end graduated scale are connected in a sliding mode through the clamping groove.
Furthermore, the clamp comprises a chuck, a bolt, a gasket and a shoe-shaped nut, the chuck is provided with a thread which is used for enabling the chuck to firmly clamp the reinforcing steel bar and not to move, and the bolt, the gasket and the shoe-shaped nut are connected to the mounting hole at the outer end of the chuck.
Still further, the precision of the vernier caliper is 0.02 mm.
The main body material of the sleeve is international No. 45 steel, and the main body material of the distance measurement checking device is tool steel. The sleeve has the mechanical connection of different specifications in order to adapt to different specification reinforcing bars, and the sleeve appearance is cylindrical, and telescopic inside is equipped with the reinforcing bar surface rib matched with helicla flute with required connection, and the effect makes both ends reinforcing bar and sleeve closely laminate to make two sections reinforcing bar central lines that connect coincide, avoid appearing obvious dislocation, the phenomenon of buckling. The single-pair distance measurement and check device measures the distance between the clamping positions of the left and right reinforcing steel bars behind the reinforcing steel bar mechanical connectors at the two ends.
In the clamp, the chuck is provided with threads and is used for firmly clamping the steel bar without moving, so that the relative position between the vernier caliper and the steel bar before and after measurement does not deviate, and the factors influencing the measurement precision are reduced. The ingot nut rotates convenient easy operation, and the effect of gasket is increase ingot nut area of contact, reduces pressure, and protection part and bolt prevent not hard up.
The utility model discloses following beneficial technological effect has: (1) the auxiliary device for the mechanical connector of the steel bars designed by the utility model uses the improved vernier caliper to measure and check the length of the steel bars before and after connection, so that the joints are tightly attached, the precision is high, and the strength of the mechanical connector of the steel bars can be ensured; (2) the auxiliary device of the steel bar mechanical connector designed by the utility model has high connection strength, stable and reliable joint quality, simple structure and material saving; (3) the auxiliary device of the steel bar mechanical connector designed by the utility model is convenient and flexible to install, only comprises two vernier caliper components, and is simple and flexible to assemble; (4) the auxiliary device of the mechanical connector for the steel bars has simple and convenient operation, safe operation, no open fire and no fire hazard; (5) the utility model has wide application range, and the different sleeve specifications and the elastic clamping hoops are suitable for the different specifications of the mechanical connectors of the steel bars; (6) the utility model discloses the influence of human factor is little, does not receive factors such as weather, electric power to influence, does not receive reinforcing bar chemical composition's influence pollution-free, accords with the environmental protection requirement.
Drawings
Fig. 1 is the utility model discloses reinforcing bar mechanical connector auxiliary device major structure sketch map.
Fig. 2 a-a section view of the auxiliary device of the steel bar mechanical connector of the present invention.
Fig. 3 is a sectional view of the auxiliary device B-B of the steel bar mechanical connector of the present invention.
Fig. 4 is a C-C sectional view of the auxiliary device of the steel bar mechanical connector of the present invention.
Fig. 5 shows the work measuring chart of the left vernier caliper of the auxiliary device of the steel bar mechanical connector.
Fig. 6 shows the work measuring chart of the right-hand vernier caliper of the auxiliary device of the steel bar mechanical connector.
Fig. 7 the utility model discloses mechanical connector of reinforcing bar auxiliary device steel bar connection back slide caliper work measuring chart.
In fig. 1 to 7: 111 is left end steel bar, 112 is left end steel bar processing thread, 121 is right end steel bar, 122 is right end steel bar processing thread, 13 is sleeve, 21 is left end vernier caliper (precision 0.02mm), 211 is left end vernier caliper loose screw, 22 is left end scale (1 mm per scale), 221 is left end scale groove, 23 is clamp on left end vernier caliper, 231 is internal thread of left end vernier caliper upper clamp, 232 is left end vernier caliper upper clamp screw hole, 31 is right end vernier caliper (precision 0.02mm), 311 is right end vernier caliper loose screw, 32 is right end scale (precision 1mm), 321 is right end scale groove, 322 is right end scale groove, 33 is right end scale clamp, 331 is right end vernier caliper internal thread, 332 is right end vernier caliper upper clamp screw hole, 41 is bolt (specification M12), 42 is Yuanbao nut, 42 is nut, 43 is a gasket, 5 is a steel ruler.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-7, a novel reinforcing bar mechanical connector auxiliary device, reinforcing bar mechanical connector includes the sleeve, telescopic both ends are connected with the straight thread end of reinforcing bar respectively, its characterized in that: the auxiliary device is two pairs of distance measurement and checking devices which are respectively positioned at two sides of the sleeve; the single-pair distance measurement and checking device comprises a left-end vernier caliper and a right-end vernier caliper, each vernier caliper is rigidly connected with the clamp, the left-end vernier caliper measures the distance between the joint of the left connecting steel bar and the clamping position, and the right-end vernier caliper measures the distance between the joint of the right connecting steel bar and the clamping position.
The thread processing length of the thread 112 of the reinforcing steel bar end at the left end is about 40mm according to the requirement of the specification of the sleeve, the number of threads is 10-11 threads, the sleeve 13 can be connected by adopting different specifications to match reinforcing steel bars with different specifications (common specifications of M20, M22, M25, M28 and M32), the length of the sleeve 13 is within the range of 54 mm-65 mm, and after the connection of the reinforcing steel bars is finished, the effective exposed threads of the joint connecting sleeve are exposed, and the single-side exposed effective threads of the connecting sleeve are not more than 2 times of thread pitches.
The left-end vernier caliper 21 is connected with the left-end graduated scale 22 in a sliding mode through a left-end vernier caliper tightening screw 211 and a left-end graduated scale groove 221, and the right-end vernier caliper 31 is connected with the right-end graduated scale 32 in a sliding mode through a right-end vernier caliper tightening screw 311 and a right-end graduated scale groove 322; the left end vernier caliper 21 is matched with the left end graduated scale 22 by 0.98mm in each scale value and 1mm in each scale value, and the precision is 0.02 mm. Each scale value of the right vernier caliper 31 is 0.98mm, each scale value of the right graduated scale 32 is 1mm, and the precision is 0.02 mm; when the left vernier caliper 21 and the left graduated scale 22 slide relatively, the left graduated scale 22 slides rightward, and in contrast, the left vernier caliper 21 slides leftward, so the 0 scale is on the right side, and the left vernier caliper 21 reads from left to right. When the right vernier caliper 31 and the right graduated scale 32 slide relatively, the right vernier caliper 31 slides leftward, so that the scale 0 is on the left side, and the right vernier caliper 31 reads data from right to left.
The maximum scale of the left-end scale 32 is 70mm, the maximum scale of the right-end scale 32 is 80mm, the maximum length of the two vernier calipers which work together can be measured is at least 150mm (the distance between the vernier caliper 0 scale and the clamping hoop is △ h), the left-end scale 22 is an upper scale and a lower scale, the right-end scale 32 is an upper scale and a lower scale within the scale range of 55mm to 80mm, the right-end scale 32 and the left-end scale 22 are connected through the right-end scale clamping groove 321 in measurement after steel bars are connected, whether the left scale and the right scale are on the same straight line or not can be judged from the upper scale and the lower scale, and the measurement accuracy is ensured.
The use method of the novel auxiliary device of the steel bar mechanical connector comprises the following steps:
(1) selecting a sleeve 5 of a suitable size for mechanically connecting the reinforcing bars;
(2) flattening the joint of the steel bar, and processing threads with the length of about 40mm at the joint, wherein the number of the threads is 10-11 threads;
(3) the left end vernier caliper 21 was used to measure the distance (accuracy 0.02mm) between the left steel bar joint and the clamp: the clamp 23 on the vernier caliper at the left end is firstly used for clamping the clamp of the reinforcing steel bar 111 at the left end for marking. Then, the bolt 41, the shoe-shaped nut 42 and the washer 43 are tightened. Measured using a steel rule 5, releasedThe left vernier caliper slack screw 211 enables the left graduation line on the left graduated scale 22 closest to the left boundary of the steel ruler 5 to coincide with the left boundary of the steel ruler 5, and then the left vernier caliper slack screw 211 is tightened. Reading the distance h between the left steel bar joint and the clamp1△ h + the reading of the left end scale 22 + the reading of the left end vernier caliper 21 (refer to the working measurement diagram of the left end vernier caliper in fig. 5), if a scale mark on the left end scale 22 is exactly coincident with the left boundary of the steel ruler 5, the left end scale 22 does not need to be slid.
(4) The right end scale 32 was used to measure the distance from the right reinforcement joint to the clamp (accuracy 0.02 mm): the right end 33 is used for clamping the left end reinforcing steel bar 121, and the position of a reinforcing steel bar clamp is marked. Then, the bolt 41, the shoe-shaped nut 42 and the washer 43 are tightened. And (3) measuring by using the steel ruler 5, loosening the right vernier caliper loose screw 311 to enable the scale line on the right side of the right graduated scale 32, which is closest to the right boundary of the steel ruler 5, to coincide with the right boundary of the steel ruler 5, and then tightening the right vernier caliper loose screw 311. Reading the distance h between the right steel bar joint and the clamp2△ h + the right-end scale 32 reading + the right-end vernier caliper 31 reading (refer to the right-end vernier caliper working measurement chart in fig. 6 specifically), if a scale mark on the right-end scale 32 is exactly coincident with the right border of the steel ruler 5, the right-end scale 32 does not need to be slid.
(5) After the two sections of steel bars are connected, a single pair of distance measurement and check devices, namely a left end vernier caliper, a graduated scale, a right end vernier caliper and a graduated scale, are used for measuring the distance between the two clamping hoops: the right-end vernier caliper 31 is firstly slid to the right side (because the right-end vernier caliper 31 may cover the scale lines of the left-end vernier caliper 21 at the top), the left-end scale 22 slides into the right-end scale 32 along the right-end scale clamping groove 321, and then the left-end vernier caliper loose screw 211 is loosened, so that the scale lines of the left-end scale 22 and the scale lines of the right-end scale 32 are vertically consistent, and then the left-end vernier caliper loose screw 211 is tightened. Reading the distance h between the two clamping hoops 32 △ h + left vernier caliper 21 reading + left graduated scale 22 reading + right graduated scale 32 reading (refer to the working measuring chart of the steel bar connection vernier caliper in fig. 7), if the scale lines on the left graduated scale 22 and the right graduated scale 32 are exactly in vertical agreement, the left graduated scale does not need to be slid22。
(6) The two pairs of distance measurement and checking devices are matched with each other at two sides of the connecting steel bar to be used as two data h3＝h1+h2The mechanical connection of the steel bars is completed, and the shoe-shaped gold ingot nut 42 is rotated to loosen the clamping hoops 23 and 33.
The novel reinforcing bar mechanical connector auxiliary device of this embodiment, during the use, the clamp presss from both sides reinforcing bar department and makes the mark to prevent clamp and reinforcing bar aversion not discover, guarantee that the measurement number of degrees is correct reliable. Whether the upper and lower double graduation lines of the steel ruler and the graduated scale are all parallel or not is checked when the steel ruler is used for measurement, and the steel ruler is ensured to be perpendicular to the graduated scale. When the left vernier caliper 21 and the right graduated scale 32 are measured together, the graduation lines of the two should be kept consistent up and down. The left end vernier caliper 21 reads from left to right, which is opposite to the normal vernier caliper reading direction.
Claims (4)
1. The utility model provides a novel reinforcing bar mechanical connector is supplementary device, reinforcing bar mechanical connector includes the sleeve, telescopic both ends are connected with the straight thread end of reinforcing bar respectively, its characterized in that: the auxiliary device is two pairs of distance measurement and checking devices which are respectively positioned at two sides of the sleeve; the single-pair distance measurement and checking device comprises a left-end vernier caliper, a left-end graduated scale, a right-end vernier caliper and a right-end graduated scale, wherein each vernier caliper is rigidly connected with the clamp, the left-end vernier caliper measures the distance between the joint of the left connecting steel bar and the clamping position, and the right-end vernier caliper measures the distance between the joint of the right connecting steel bar and the clamping position.
2. The novel auxiliary device for the mechanical connector of the steel bars as claimed in claim 1, wherein the left end vernier caliper and the left end graduated scale are slidably connected through a groove of the left end graduated scale, and whether the left end vernier caliper can slide or not is controlled by adjusting a tightening screw on the left end vernier caliper; the right vernier caliper and the right graduated scale are connected in a sliding manner through a right graduated scale groove, and whether the right vernier caliper can slide or not is controlled by adjusting an elastic screw on the right vernier caliper; the left end graduated scale and the right end graduated scale are connected in a sliding mode through the clamping groove.
3. A novel auxiliary device for a steel bar mechanical connector as claimed in claim 1 or 2, wherein the clip comprises a clip, a bolt, a gasket and a wing nut, the clip is provided with a thread for the clip to firmly clip the steel bar without moving, and the bolt, the gasket and the wing nut are connected to the mounting hole at the outer end of the clip.
4. A novel mechanical connector auxiliary device for reinforcing steel bars as claimed in claim 1 or 2, wherein the precision of the vernier caliper is 0.02 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476111.4U CN211114882U (en) | 2019-09-06 | 2019-09-06 | Novel reinforcing bar mechanical connector is supplementary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476111.4U CN211114882U (en) | 2019-09-06 | 2019-09-06 | Novel reinforcing bar mechanical connector is supplementary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211114882U true CN211114882U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921476111.4U Expired - Fee Related CN211114882U (en) | 2019-09-06 | 2019-09-06 | Novel reinforcing bar mechanical connector is supplementary device |
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| Country | Link |
|---|---|
| CN (1) | CN211114882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883982A (en) * | 2021-09-23 | 2022-01-04 | 中交一公局集团有限公司 | Straight thread inspection early warning device |
-
2019
- 2019-09-06 CN CN201921476111.4U patent/CN211114882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883982A (en) * | 2021-09-23 | 2022-01-04 | 中交一公局集团有限公司 | Straight thread inspection early warning device |
| CN113883982B (en) * | 2021-09-23 | 2024-04-23 | 中交一公局集团有限公司 | Straight thread inspection early warning device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210906 |