CN115478680A

CN115478680A - Adjustable connecting cross rod device

Info

Publication number: CN115478680A
Application number: CN202210992104.XA
Authority: CN
Inventors: 陈军宏; 朱小铭; 赵守明
Original assignee: Dongliang Aluminium Co ltd
Current assignee: Dongliang Aluminium Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-12-16
Anticipated expiration: 2042-08-18
Also published as: CN115478680B

Abstract

The invention belongs to the technical field of supporting tools for building construction, and particularly relates to an adjustable connecting cross rod device. The invention enables the screwing-out length of the screw rod to be checked by arranging the screw rod, the vertical rod connecting block, the axial opening, the radial column unit, the inner side limiting ring groove, the radial limiting strip unit and the fixed shaft unit on the internal thread pipe, has the maximum screwing-out length, and avoids the deformation or the breakage of the connecting part of the internal thread pipe and the screw rod due to the over-small connecting size and over-concentrated stress. The invention has the following advantages: firstly, the screwing-out lengths of the two screw rods can be observed at the axial opening, so that the amplitudes of the two screw rods can be close to each other as much as possible, and the stress of the whole connecting cross rod is ensured to be more uniform; secondly, the axial opening can avoid any screw rod to screw out too much through the observation method, finally avoids screw rod and internal thread pipe spiro union department to warp, rupture.

Description

Adjustable connecting cross rod device

Technical Field

The invention belongs to the technical field of supporting tools for building construction, and particularly relates to an adjustable connecting cross rod device.

Background

In a construction site, the scaffold, the floor, the beam, the node and other concrete structures need to be properly supported, and the most common and simplest supporting tool structure is a supporting vertical rod and a connecting cross rod. The former guarantees sufficient support intensity, and the latter is used for the auxiliary reinforcement former, on two adjacent support montants, generally can set up a plurality of connection horizontal poles, guarantees that the overall structure performance of supporting tool is enough.

The existing connecting cross rod mainly comprises three parts in structure, namely: the middle internal thread pipe, the screw rods on the two sides and the connecting block for the vertical rod on the screw rod. The relative distance between the screw and the internal threaded pipe is adjustable, so that multiple groups of supporting vertical rods with different distances can use a connecting cross rod with one size specification within a certain range.

Patent publication No. CN205269683U, announcement day 2016.06.01' S chinese utility model patent disclose a horizontal pole and couple for biological safety cabinet, including the horizontal pole body, the S-shaped couple, horizontal pole body both ends inboard is equipped with horizontal pole body thread inside groove, is equipped with distance adjusting rod in the horizontal pole body thread inside groove, and distance adjusting rod one end is connected with adjusts the pole head, and horizontal pole body upside is opened has a plurality of S-shaped couple hook groove, is equipped with a plurality of S-shaped couple on the S-shaped couple hook groove.

The utility model discloses a horizontal pole in the patent, its theory of operation on a large scale is: the pole head can inwards and outwards rotate, so that the overall length of the two adjusting rods and the cross rod body can be adjusted, the transverse jacking and clamping effects of the cross rod are guaranteed, and the two vertical surfaces with different widths can be stably realized.

However, in the actual use process of the cross rod structure, the phenomenon that the extension length of the adjusting rod is too large may occur, at the moment, the screwing length of the adjusting rod and the cross rod body is insufficient, and the screwing strength is insufficient, so that the screwing part may be deformed and broken, and the risk exists in the adjusting rod and the cross rod body, so that the cross rod structure is very dangerous.

In other words, the rail structure requires a warning effect of a maximum extension length beyond which the entire rail structure cannot be sufficiently connected and is itself easily damaged.

Therefore, in view of the above, there is an urgent need for a novel connecting cross rod device with adjustable extension length and higher safety.

Disclosure of Invention

The invention provides an adjustable connecting cross rod device, which can enable the screwing-out length of a screw rod to be checked in a mode of arranging the screw rod, a vertical rod connecting block, an axial opening, a radial column unit, an inner side limiting ring groove, a radial limiting strip unit and a fixed shaft unit on an inner threaded pipe, has a maximum screwing-out length, and avoids the deformation or breakage of the connecting part of the inner threaded pipe and the screw rod due to the fact that the connecting size is too small and stress is too concentrated.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a connect horizontal pole device with adjustable, the structure includes the internal thread pipe, the screw rod to and the montant connecting block, still including setting up on the internal thread pipe, and be used for exposing the axial opening of screw rod medial extremity sets up on the axial opening, and be used for rotating the radial post unit of internal thread pipe sets up the spacing annular of inboard on the screw rod sets up on the terminal surface of radial post unit medial extremity, and be used for the block the radial spacing unit of inboard spacing annular, and set up on the radial post unit, and with the axial opening medial surface is connected, and is used for radially outwards resetting the fixed axle unit of radial spacing unit.

The further preferred technical scheme is as follows: the radial column unit comprises a convex column body, is arranged on the convex column body, is used for installing a side groove of the fixed shaft unit, is arranged between the side groove and the inner side end face of the convex column body, is used for installing a radial hole of the radial limiting strip unit, is arranged on the side groove, and is used for clamping the anti-returning block of the fixed shaft unit.

The further preferred technical scheme is as follows: the radial limiting strip unit comprises a movable strip block which is arranged on the radial pore passage and used for being inserted into the inner limiting ring groove, and a movable magnet block which is arranged on the end face of the radial outer side of the movable strip block and used for receiving the repulsive magnetic force and the attractive magnetic force at the fixed shaft unit.

The further preferred technical scheme is as follows: the radial limiting strip unit further comprises a ball arranged on the end face of the radial inner side of the movable strip block and used for rolling on the screw rod.

The further preferred technical scheme is as follows: the fixed shaft unit comprises a circular shaft body, wherein the circular shaft body is arranged on the side groove, two ends of the circular shaft body are respectively connected with two inner side surfaces of the axial opening, the circular shaft body is arranged on the circular shaft body and used for repelling and jacking the working magnet block of the movable magnet block, and the circular shaft body is arranged on the circular shaft body and used for attracting and withdrawing the reset magnet block of the movable magnet block after the circular shaft body rotates.

The further preferred technical scheme is as follows: and a circular groove for inserting the circular shaft body is formed in the inner side surface of the axial opening.

The further preferred technical scheme is as follows: the circular shaft body comprises a middle elastic shaft used for being extruded into the anti-rollback block, and two rigid shafts which are arranged on the two end faces of the middle elastic shaft and used for being inserted into the circular groove, and the working state magnet block and the reset state magnet block are arranged on the middle elastic shaft.

The further preferred technical scheme is as follows: the fixed shaft unit further comprises a toggle column which is arranged on the rigid shaft and used for axially compressing the middle elastic shaft and circularly rotating the middle elastic shaft.

The further preferred technical scheme is as follows: the fixed shaft unit further comprises an accommodating groove which is arranged on the middle elastic shaft and used for installing the working state magnet block and/or the reset state magnet block.

The further preferred technical scheme is as follows: the two rigid shafts are respectively positioned at two sides of the anti-backing block.

The present invention has the following advantages.

First, the length of unscrewing of two screws can be observed to axial opening part, consequently can let its range close as far as possible, guarantees that whole stress of connecting the horizontal pole is more even.

Secondly, the axial opening can avoid any screw rod to screw out too much through the observation method, finally avoids screw rod and internal thread pipe spiro union department to warp, rupture.

Thirdly, the fixed shaft unit always inwards supports against the radial limiting strip unit in a magnetic repulsion mode, so that once the screw rod is greatly screwed out, the radial limiting strip unit can be inserted into the inner limiting ring groove, the screw rod cannot be screwed out, the screw rod is in the largest and safe screwing-out size, and deformation and breakage of the screwing part are avoided.

Fourthly, after the fixed shaft unit rotates, the magnetic repulsion state is switched to a magnetic attraction state, the radial limiting strip unit is sucked out from the inner side limiting ring groove, the radial limiting strip unit can be reset, the screw rod rotates inwards to a safe range, and the whole connecting cross rod device can be reused.

Fifthly, the length of the fixed shaft unit in the axial direction is variable, so that the fixed shaft unit can be smoothly assembled and disassembled on the radial column unit and the circular groove.

Sixthly, the radial column unit is a force application position of the internal thread pipe which is adjusted relative to the screw rod in a rotating mode, and the rotating action of the internal thread pipe is guaranteed to be relatively labor-saving.

Seventh, the fixed shaft unit is detachable, and its own installation, detachment operation is relatively simple, sufficient for the installation strength of the radial column unit.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the position structure of the inner limiting ring groove according to the present invention.

Fig. 3 is a schematic view of the position structure of the radial column unit in the present invention.

Fig. 4 is a schematic diagram of a position structure of an anti-rollback block according to the present invention.

FIG. 5 is a schematic view of the position of the active magnet block and the reset magnet block of the present invention in comparison to the position of the movable magnet block.

Fig. 6 is a schematic structural view of a fixed shaft unit according to the present invention.

In the drawings, the reference numerals have the following meanings: the device comprises an internal threaded pipe a, a screw rod b, a vertical rod connecting block c, an axial opening 1, a radial column unit 2, an inner side limiting ring groove 3, a radial limiting strip unit 4, a fixed shaft unit 5, a protruding cylinder 201, a side groove 202, a radial pore channel 203, an anti-backspacing block 204, a movable strip block 401, a movable magnet block 402, a ball 403, a circular shaft body 501, an operating state magnet block 502, a resetting state magnet block 503, a circular groove 6, a middle elastic shaft 501a, a rigid shaft 501b, a toggle column 504 and an accommodating groove 505.

Detailed Description

The following description is merely exemplary of the present invention and is not intended to limit the scope of the invention.

As shown in the accompanying drawings 1-6, an adjustable connecting cross rod device structurally comprises an internal threaded pipe a, a screw rod b, a vertical rod connecting block c, an axial opening 1 which is arranged on the internal threaded pipe a and used for exposing the inner side end of the screw rod b, a radial column unit 2 which is arranged on the axial opening 1 and used for rotating the internal threaded pipe a, an inner side limiting ring groove 3 which is arranged on the screw rod b, a radial limiting strip unit 4 which is arranged on the inner side end face of the radial column unit 2 and used for clamping the inner side limiting ring groove 3, and a fixed shaft unit 5 which is arranged on the radial column unit 2 and connected with the inner side face of the axial opening 1 and used for radially outwards resetting the radial limiting strip unit 4.

In this embodiment, the connecting rail arrangement is arranged as follows in the manner of the prior art.

The thread directions of the first and the second screw rods b are opposite.

In other words, after the two screws b are fixed on the vertical rod, when the internal threaded pipe a rotates, the two screws b either move away from each other or move close to each other.

And secondly, bolt holes for connecting the vertical rods are formed in the vertical rod connecting blocks c.

Third, the montant generally uses four as a unit to carry out abundant stable support, the montant all need set up this connecting rod device between two liang this moment, and adjust its rotation to suitable length, finally the montant adds connecting rod device, forms a firm support frame body.

In addition, the inner side ends of the screw rods b can be seen from the axial opening 1, and the two screw rods b extend out of the inner threaded pipe a by similar lengths, so that the stress uniformity and stability of the connecting cross rod device are facilitated.

And the radial limit strip unit 4 is always pressed inwards against the screw rod b, once the inner limit ring groove 3 moves outwards and the radial limit strip unit 4 comes, the radial limit strip unit 4 can be inserted into the inner limit ring groove 3 immediately, the screw rod b is prohibited from extending outwards again, and the maximum safe extension length of the screw rod b is realized at the moment.

If the screw rod b extends out again, the length of the threaded connection section between the screw rod b and the internal threaded pipe a is relatively small, and the connection cross rod device is stressed intensively at the position and is easy to deform and break when in use.

Finally, the fixed shaft unit 5 can enable the radial limiting strip unit 4 to move out radially, namely reset, and at the moment, the screw rod b rotates inwards for a certain distance, so that the connecting transverse rod device can be used normally.

The radial column unit 2 includes a protruding column 201, a side groove 202 disposed on the protruding column 201 and used for mounting the fixed shaft unit 5, a radial hole 203 disposed between the side groove 202 and an inner end surface of the protruding column 201 and used for mounting the radial stopper unit 4, and an anti-retraction block 204 disposed on the side groove 202 and used for engaging with the fixed shaft unit 5.

In this embodiment, one or two screws b are held by hand, and then the protruding column 201 is rotated to push the protruding column 201, so that the screw b can rotate relative to the internal threaded tube a, and at this time, the screw b can be screwed out or retracted.

In addition, after the two vertical rod connecting blocks c are respectively in threaded connection with the two virtual positions of the vertical rods, the protruding cylinder 201 is rotated, so that the two screw rods b can extend outwards in a small range until the vertical rod connecting blocks c cling to the vertical rods, at the moment, bolts on the vertical rod connecting blocks c are finally screwed, and therefore the connecting transverse rod device is properly installed.

Finally, the anti-falling block 204 is added to the side groove 202, so that the projecting cylinder 201 is not easy to fall off the fixed shaft unit 5, and even if the projecting cylinder 201 and the internal thread tube a are not perpendicular to each other, the former is properly inclined, the force application effect of the projecting cylinder 201 is not affected, and the internal thread tube a can also be rotated relatively with less effort.

The radial position-limiting strip unit 4 includes a movable strip 401 disposed on the radial hole 203 and inserted into the inner position-limiting ring groove 3, and a movable magnet 402 disposed on the radial outer end surface of the movable strip 401 and receiving the repulsive magnetic force and the attractive magnetic force at the fixed shaft unit 5.

In this embodiment, when the connecting cross bar device is used safely, two inner limiting ring grooves 3 are located between two movable bars 401. When any one of the screws b is excessively rotated outwards, the inner limiting ring groove 3 is outwards arranged at the radial hole 203, namely the inner side of the movable bar 401, and at this time, the repulsive magnetic force of the fixed shaft unit 5 to the movable magnet 402 can randomly press the movable bar 401 into the inner limiting ring groove 3, so that the screws b are prohibited from further rotating outwards.

At this point, the corresponding position of the connecting rail arrangement is already at the maximum safe use length. For example, it needs to be elongated by 40cm in total, while the maximum safe elongation of the screw b on one side is 30cm, the elongation scheme of 30cm on one side and 10cm on the other side is not optimal.

And (3) resetting the movable strip block 401 on the clamped side, and finally changing the elongation of the screw rods b on the two sides to be 20cm, so that the safest and most reasonable use mode of the connecting cross rod is realized.

The return operation of the movable bar 401 requires the fixed shaft unit 5 to switch the state of different magnetic forces to the movable magnet block 402, i.e., from repulsion to attraction.

The radial stopper bar unit 4 further includes a ball 403 disposed on a radially inner end surface of the movable bar 401 and configured to roll on the screw b.

In this embodiment, when the screw b is used safely, the movable bar 401 needs to be pressed on the thread of the screw at all times, and if the ball 403 is not provided, the thread of the screw b is easily worn out.

In addition, the balls 403 are embedded in the end face of the movable bar 401 on the inner side in the radial direction, and are not easy to fall off.

The fixed shaft unit 5 includes a circular shaft body 501 disposed in the side groove 202 and having two ends respectively connected to two inner side surfaces of the axial opening 1, an operating-state magnet block 502 disposed on the circular shaft body 501 and configured to repel the movable magnet block 402, and a reset-state magnet block 503 disposed on the circular shaft body 501 and configured to attract and retract the movable magnet block 402 after the circular shaft body 501 rotates.

In this embodiment, the circular shaft body 501 needs to be properly pressed, i.e. interference fit, between the side groove 202 and the anti-rollback block 204, and at this time, the protruding cylinder 201 is not easy to rotate greatly around the circular shaft body 501, otherwise the movable block 401 cannot be aligned with the inner limit ring groove 3.

Moreover, the circular shaft 501 itself cannot rotate spontaneously, ensuring that the active magnet block 502 is facing the movable magnet block 402.

Finally, the central angle between the working magnet block 502 and the reset magnet block 503 is the angle that the circular shaft 501 needs to rotate when the movable bar 401 is reset.

The inner side surface of the axial opening 1 is provided with a circular groove 6 for inserting the circular shaft body 501.

In this embodiment, the circular shaft 501 cannot rotate spontaneously on the circular groove 6, preventing the active magnet block 502 from rotating away from the movable magnet block 402.

The circular shaft body 501 comprises a middle elastic shaft 501a for being squeezed into the anti-backing block 204, and two rigid shafts 501b respectively arranged on two end surfaces of the middle elastic shaft 501a and used for being inserted into the circular groove 6, wherein the working state magnet block 502 and the reset state magnet block 503 are both arranged on the middle elastic shaft 501 a.

In this embodiment, the middle elastic shaft 501a is made of soft rubber, and the rigid shaft 501b is made of hard resin, which ensures that the anti-retraction block 204 can be inserted and extruded, and when the circular groove 6 is installed, the entire length of the circular shaft 501 can be shortened, and the middle elastic shaft 501a can be shortened and the compression action can be cancelled until the circular shaft 501 is aligned with the circular groove 6, so that the circular shaft 501 can be smoothly inserted into the circular groove 6.

It should be noted that the protruding column 201 is connected with the internal threaded tube a with high strength, the former is not easy to fall off when pushed, and the rigid shaft 501b has its own rigidity.

In other words, the middle elastic shaft 501a may be soft, and the rigid shaft 501b may have a core leg added thereto.

Finally, depending on the soft characteristics of the middle elastic shaft 501a, the middle elastic shaft 501a needs to be axially shortened and circumferentially deformed, so that the circular shaft 501 can be smoothly assembled and disassembled in the anti-retraction block 204 and on the circular groove 6.

The fixed shaft unit 5 further includes a toggle column 504 disposed on the rigid shaft 501b and configured to axially compress the middle elastic shaft 501a and circumferentially rotate the middle elastic shaft 501 a.

In this embodiment, the toggle post 504 has at least the following two functions.

First, when circular axis body 501 was installed, two draw close each other after stirring post 504 and pinching, let circular axis body 501 shortens, until align circular groove 6 back, stir post 504 and loosen, circular axis body 501 has also installed and has just finished, also is the same reason when pulling down after it.

In other words, when the circular shaft 501 is not subjected to an external force, the length of the circular shaft 501 is equal to the distance between the inner sides of the two circular grooves 6, the circular shaft 501 cannot be mounted without being shortened, and the middle elastic shaft 501a is arranged on the anti-retraction block 204 and can effectively enter and exit in a hard extrusion deformation manner.

Secondly, when the movable bar block 401 needs to be reset from the inner limiting ring groove 3, the reset state magnet block 503 needs to rotate inwards, at this time, the toggle column 504 is a force application part of annular rotation, otherwise, the circular shaft body 501 needs to be pinched and then rotates, which is very laborious.

Therefore, in summary, the toggle column 504 needs to be moved close to each other in the axial direction and rotate in the circumferential direction, and due to the presence of the toggle column 504, the two actions do not need to directly operate the circular shaft body 501, so that the operation is labor-saving and convenient.

The fixed shaft unit 5 further includes a receiving groove 505 disposed on the middle elastic shaft 501a and used for receiving the active state magnet block 502 and/or the reset state magnet block 503.

In this embodiment, if the active state magnet block 502 and the reset state magnet block 503 are protruded on the annular surface of the middle elastic shaft 501a, the active state magnet block 502 and the reset state magnet block 503 are easily pushed out by the anti-rollback block 204 when the middle elastic shaft 501a is pushed in and pushed out on the anti-rollback block 204.

Therefore, after one or two accommodating grooves 505 are arranged, the working state magnet block 502 and the reset state magnet block 503 are installed in a shrinking mode, so that the magnetic effect is not influenced and the fixing safety is ensured.

Two rigid shafts 501b are respectively located at both side positions of the anti-backoff block 204.

In this embodiment, the opening width of the side groove 202 is the maximum allowable rotation angle of the toggle column 504, so the number of central angles between the active state magnet block 502 and the reset state magnet block 503 cannot be too large, otherwise the two states of magnetic repulsion and magnetic attraction cannot be sufficiently switched.

In addition, the anti-rollback block 204 is made of steel and the material of the anti-rollback block 204 is consistent with that of the protruding cylinder 201, so the anti-rollback block 204 is not suitable for extruding the rigid shaft 501b, and the anti-rollback block 204 is not only arranged in the middle, but also has a relatively small left-right dimension, and has an optimal length smaller than that of the middle elastic shaft 501 a.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.

Claims

1. The utility model provides a connect horizontal pole device with adjustable, the structure includes internal thread pipe (a), screw rod (b) to and montant connecting block (c), its characterized in that: still including setting up on the internal thread pipe (a), and be used for exposing axial opening (1) of screw rod (b) medial extremity sets up on axial opening (1), and be used for the rotation radial post unit (2) of internal thread pipe (a), set up inboard spacing annular (3) on the screw rod (b) set up on the radial post unit (2) medial surface, and be used for the block radial spacing strip unit (4) of inboard spacing annular (3), and set up on the radial post unit (2), and with axial opening (1) medial surface is connected, and is used for radially outwards reseing fixed axle unit (5) of radial spacing strip unit (4).

2. The adjustable connecting rail apparatus of claim 1, wherein: the radial column unit (2) comprises a protruding column body (201), a side groove (202) which is arranged on the protruding column body (201) and used for installing the fixed shaft unit (5), a radial hole channel (203) which is arranged between the side groove (202) and the inner side end face of the protruding column body (201) and used for installing the radial limiting strip unit (4), and an anti-return block (204) which is arranged on the side groove (202) and used for clamping the fixed shaft unit (5).

3. The adjustable connecting rail device of claim 2, wherein: the radial limiting strip unit (4) comprises a movable strip block (401) which is arranged on the radial hole channel (203) and used for being inserted into the inner limiting ring groove (3), and a movable magnet block (402) which is arranged on the end face of the radial outer side of the movable strip block (401) and used for receiving repulsive magnetic force and attractive magnetic force at the fixed shaft unit (5).

4. The adjustable connecting rail apparatus of claim 3, wherein: the radial limiting strip unit (4) further comprises a ball (403) which is arranged on the end face of the radial inner side of the movable strip block (401) and is used for rolling on the screw rod (b).

5. The adjustable connecting rail device of claim 3, wherein: the fixed shaft unit (5) comprises a circular shaft body (501) which is arranged on the side groove (202) and two ends of which are respectively connected with two inner side surfaces of the axial opening (1), an operating-state magnet block (502) which is arranged on the circular shaft body (501) and is used for repelling and jacking the movable magnet block (402), and a reset-state magnet block (503) which is arranged on the circular shaft body (501) and is used for attracting and withdrawing the movable magnet block (402) after the circular shaft body (501) rotates.

6. The adjustable connecting rail apparatus of claim 5, wherein: and a circular groove (6) for inserting the circular shaft body (501) is formed in the inner side surface of the axial opening (1).

7. The adjustable connecting rail apparatus of claim 6, wherein: the round shaft body (501) comprises a middle elastic shaft (501 a) used for being extruded into the anti-backing block (204) and two rigid shafts (501 b) which are respectively arranged on two end faces of the middle elastic shaft (501 a) and used for being inserted into the round groove (6), and the working state magnet block (502) and the reset state magnet block (503) are both arranged on the middle elastic shaft (501 a).

8. The adjustable connecting rail apparatus of claim 7, wherein: the fixed shaft unit (5) further comprises a toggle column (504) which is arranged on the rigid shaft (501 b) and is used for axially compressing the middle elastic shaft (501 a) and circularly rotating the middle elastic shaft (501 a).

9. The adjustable connecting rail apparatus of claim 7, wherein: the fixed shaft unit (5) further comprises an accommodating groove (505) which is arranged on the middle elastic shaft (501 a) and is used for installing the working state magnet block (502) and/or the reset state magnet block (503).

10. The adjustable connecting rail apparatus of claim 7, wherein: the two rigid shafts (501 b) are respectively positioned at two side positions of the anti-rollback block (204).