CN219365381U - Scaffold and socket key groove type connecting piece thereof - Google Patents

Abstract

The utility model relates to the field of scaffolds, in particular to a scaffold and a socket key groove type connecting piece thereof. A socket key slot type connecting piece comprises a longitudinal connecting seat fixedly connected to a vertical rod and a transverse connecting seat fixedly connected to the end part of a cross rod; the end part of the transverse connecting seat is detachably and fixedly connected to the side wall of the longitudinal connecting seat; the longitudinal connecting seat comprises a lower base connected to the upper end of the lower upright rod and an upper base connected to the lower end of the upper upright rod, and the upper base is detachably and fixedly connected to the upper end of the lower base; the end part of the transverse connecting seat is fixedly connected to the side wall of the upper base or the lower base through a mortise and tenon structure, and when the upper base is fixedly connected with the lower base, the mortise and tenon structure of the end part of the transverse connecting seat is locked. Compared with the prior patent scheme, the scheme has the advantages of stable connection, high connection strength, convenient disassembly and assembly and repeated use.

Description

Scaffold and socket key groove type connecting piece thereof

Technical Field

The utility model relates to the field of scaffolds, in particular to a scaffold and a socket key groove type connecting piece thereof.

Background

The scaffold is a working platform erected for ensuring the smooth construction process in the engineering construction industry, and the scaffold style commonly adopted in the industry at present comprises a fastener type scaffold and a socket type scaffold. However, the traditional scaffold patterns have a plurality of defects, such as the problems that parts are easy to lose, the assembling force of the parts is unstable and easy to cause disintegration, the rod piece at the assembling point is in eccentric connection, the bearing capacity is easy to be weakened, the support stability by anti-skid force is poor, and the like, which exist in the fastener type scaffold; for example, the socket scaffold has the problems of various fitting patterns, small erection randomness, poor universality, large occupied transportation and storage space, multiple high cost and the like.

On this basis, in the prior art, for example, in chinese patent publication No. CN2637630Y, a mortise and tenon type scaffold connecting piece and a mortise and tenon type scaffold are described, wherein the mortise and tenon type scaffold connecting piece comprises a vertical pipe connecting piece and a horizontal pipe connecting piece, and the vertical pipe connecting piece is: four equal parts on the outer wall of the tenon seat with a round hole in the middle are respectively provided with a tenon; the transverse pipe connecting piece is: the mortise seat is provided with mortise slots matched with the tenon in shape, and the joint surface between the tenon and the mortise slots is an inclined plane. Typically, the tenons are in a T-shaped structure, and the mortise is a T-shaped slot. And welding the transverse pipe connecting piece at the end of the transverse pipe according to the set size, and sleeving and welding the vertical pipe connecting piece on the vertical pipe according to the set size to obtain the mortise and tenon type scaffold.

The prior patents all provide mortise and tenon type scaffold, and compared with the prior art, the mortise and tenon type scaffold has the advantages of convenience and simplicity in disassembly and assembly and good universality. But there are at least two disadvantages:

1, above-mentioned scheme all has constructed the round hole on the riser connecting piece, is the cover welds the riser connecting piece on the riser during the installation, and so the installation is inconvenient. And the structure of cover between riser connecting piece and the riser, even welding also can only support the horizontal pole through the welding seam of edge round, and intensity is difficult to reach standard.

2, adopt mortise and tenon structural connection between riser connecting piece and the horizontal union coupling piece, can provide ascending holding power for horizontal union coupling piece and horizontal pole of connecting thereof, but its problem lies in: the job site condition is complicated, and when horizontal union coupling spare and horizontal pole of connecting received the strength of lifting upwards, mortise and tenon structure can be unlocked promptly, leads to horizontal union coupling spare and the horizontal pole of connecting not hard up, has the potential safety hazard.

Disclosure of Invention

In order to solve the above problems, a first object of the present utility model is to provide a socket-and-spigot type connector, which has stable connection, high connection strength, convenient assembly and disassembly, and repeated use compared with the prior patent.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a socket key slot type connecting piece comprises a longitudinal connecting seat fixedly connected to a vertical rod and a transverse connecting seat fixedly connected to the end part of a cross rod; the end part of the transverse connecting seat is detachably and fixedly connected to the side wall of the longitudinal connecting seat; the method is characterized in that: the longitudinal connecting seat comprises a lower base connected to the upper end of the lower upright rod and an upper base connected to the lower end of the upper upright rod, and the upper base is detachably and fixedly connected to the upper end of the lower base; the end part of the transverse connecting seat is fixedly connected to the side wall of the upper base or the lower base through a mortise and tenon structure, and when the upper base is fixedly connected with the lower base, the mortise and tenon structure of the end part of the transverse connecting seat is locked.

The utility model adopts the technical scheme, and the technical scheme relates to a socket key groove type connecting piece, wherein a longitudinal connecting seat of the socket key groove type connecting piece is used for being connected to a vertical rod, a transverse connecting seat is fixedly connected to the end part of a cross rod, and then the end part of the transverse connecting seat is detachably fixedly connected to the side wall of the longitudinal connecting seat, so that the connection between the cross rod and the vertical rod can be realized.

In the specific scheme, compared with the prior patent scheme recorded in the background technology, the longitudinal connecting seat is divided into an upper base and a lower base, wherein the lower base is connected with the upper end of the lower upright rod, and the upper base is connected with the lower end of the upper upright rod; namely, the upper base and the lower base are connected to the end parts of the vertical rods, so that the end parts of the upper vertical rods and the lower vertical rods are connected, and the penetrating scheme in the prior patent scheme is not realized. Based on this, the first point effect of the present solution is achieved: the upper base and the lower base are arranged on the end parts of the vertical rods, and the vertical supporting force provided by the vertical rods for the upper base, the lower base and the cross rod structure connected with the upper base and the lower base is derived from supporting and fixedly connecting, and the strength is far greater than that of a circumferential welding seam in a sleeve welding mode; and need not the welding during the installation, easy dismounting can reuse.

Further, the end part of the transverse connecting seat is fixedly connected to the side wall of the upper base or the lower base through a mortise and tenon structure. When the upper base is fixedly connected with the lower base, the mortise and tenon structure at the end part of the transverse connecting seat is locked. So as to achieve the second point effect of the scheme: on the basis that current mortise and tenon structure realized unidirectional locking, adopt base and lower base cooperation, realize locking in mortise and tenon structure withdrawal direction, so can not appear horizontal union coupling spare and the horizontal pole of connecting receive the problem of lifting upward force and relieving mortise and tenon structure promptly.

In summary, compared with the prior patent proposal, the scheme has the advantages of stable connection, high connection strength, convenient disassembly and assembly and repeated use.

In a further scheme, a connecting column is arranged on the upper end face of the lower base in an upward protruding mode, and a connecting groove is formed in the lower end face of the upper base; the connecting column of the lower base is inserted into the connecting groove of the upper base and is axially locked by the turnbuckle. Based on the connecting column inserted into the connecting groove, the radial insertion positioning can be realized; then the locking in the axial direction is realized by the circumferential turnbuckle locking, and the circumferential anti-falling is realized. When unlocking, the disassembly can be realized by firstly releasing the axial locking through circumferential rotation, so as to ensure that the use state is not loosened.

In a specific embodiment, the connecting column of the lower base is constructed into a gradual change shape with thick end parts and thin root parts, and the side wall of the end part of the connecting column is constructed with a first tangent plane; a first flange matched with the first tangential plane is constructed on the notch of the connecting groove, and a first locking groove for locking the connecting column turnbuckle is constructed on the side wall of the inner part of the connecting groove. This solution requires, during plugging, that the first flange of the connecting groove be aligned with the first tangential plane of the connecting post and that the connecting post be inserted into the connecting groove. After the connecting column is inserted into the first locking groove, the upper base is rotated to enable the connecting column and the connecting groove to be misplaced, and the connecting column is locked in the first locking groove in a screwing mode, so that the axial locking of the screwing is achieved. In the scheme, the connecting column is constructed into a gradual change shape with thick end parts and thin root parts and a matching structure of the first tangential plane and the first flange, so that the connecting column is difficult to axially disconnect after the plugging is completed, and the connecting strength is ensured.

In a specific embodiment, a tenon is constructed on the side wall of the upper base or the lower base, a tenon head is constructed at the end part of the transverse connecting seat, and the tenon head of the transverse connecting seat is inserted into the tenon groove on the side wall of the upper base or the lower base; the notch of the tenon groove extends to the lower end face of the upper base or the upper end face of the lower base, and when the upper base is fixedly connected with the lower base, the end face of the upper base or the lower base at least partially presses against the tenon head, so that the tenon head is locked in the tenon groove. Based on the scheme, after the transverse connecting seat is inserted into the mortises on the side wall of the upper base or the lower base, the upper base is fixedly connected with the lower base, and can be pressed against the tenons to prevent the connection from being withdrawn; the mortise and tenon structure is ensured not to be unlocked accidentally, and the safety of the scaffold is ensured.

In a further preferred scheme, the dovetail groove back is constructed into a dovetail groove with small bottom width and large upper end width; the dovetail is constructed to conform to the shape of the dovetail. Under the structure, the gradually changed dovetail groove is matched with the tenon; the small end of the tenon is aligned with the large end of the dovetail groove at the beginning of insertion, so that the alignment is convenient; gradually guiding through gradual change in the plugging process; after the insertion is completed, the dovetail groove is completely matched with the tenon, so that the dovetail groove is stable and reliable.

In a further scheme, the device also comprises an inclined support seat, wherein the inclined support seat is obliquely arranged and fixedly connected to the end angle of the longitudinal connecting seat above or below the transverse connecting seat, and the inclined support seat is fixedly connected to the end part of the inclined rod. The inclined support base is used for supporting the inclined rod so as to provide a stable scaffold structure.

In the preferred scheme, the inclined support seat is clamped and fixed between the transverse connecting seat and the upper base or between the transverse connecting seat and the lower base; the scheme is that the inclined support seat is clamped and fixed by the upper base and the lower base at two sides of the transverse connecting seat.

In a specific scheme, first oblique tooth grooves are formed in the upper side wall and the lower side wall of the transverse connecting seat, and second oblique tooth grooves are formed in the circumferential side wall of the upper base and the circumferential side wall of the lower base below the transverse connecting seat; at least one helical tooth groove of the first helical tooth groove and the second helical tooth groove extends to an end opening from one end; the bottom of the inclined support seat is provided with support legs, two end parts of the support legs of the inclined support seat at the upper end angle are clamped in the first inclined tooth groove of the transverse connecting seat and the second inclined tooth groove of the upper base, and two end parts of the support legs of the inclined support seat at the lower end angle are clamped in the first inclined tooth groove of the transverse connecting seat and the second inclined tooth groove of the lower base. In the scheme, a clamping opening is formed between the transverse connecting seat and the upper base and the lower base on two sides of the transverse connecting seat, and two ends of the support leg of the inclined supporting seat are pushed in along the first inclined tooth groove and the second inclined tooth groove based on the conical opening formed by the first inclined tooth groove on the transverse connecting seat and the second inclined tooth groove on the upper base or the lower base.

In a further scheme, the side wall of the supporting leg of the inclined support seat is provided with a second tangent plane, and the interiors of the first inclined tooth groove and the second inclined tooth groove are respectively provided with a second locking groove for locking the supporting leg turnbuckle of the inclined support seat. This scheme is based on the setting of second tangent plane, in the pushing-in process, and the stabilizer blade of bearing diagonal seat can push into first tooth's socket and second tooth's socket to one side based on the dodging of second tangent plane, then rotatory bearing diagonal seat certain angle makes its edge card that does not set up the second tangent plane go into the second locking groove to realize locking, anticreep.

A second object of the present utility model is to provide a scaffold, characterized in that: including the socket and keyway connection as described above.

Drawings

Fig. 1 is a schematic view of a key and slot type connection.

Fig. 2 is a schematic diagram showing a connection state of the upper base and the lower base.

Fig. 3 is a schematic connection diagram of the lower base and the transverse connection seat.

Fig. 4 is a schematic structural view of the lower base.

Fig. 5 is a schematic structural view of the transverse connection seat.

Fig. 6 is a schematic structural view of the upper base.

Fig. 7 is a schematic structural view of a socket and keyway type connecting member with an inclined support.

Fig. 8 is a schematic structural view of the diagonal brace.

Fig. 9 is a schematic installation view of the diagonal brace.

Fig. 10 is a schematic view of the connection of scaffolds.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1:

as shown in fig. 1 to 9, this embodiment describes a socket key type connector, which includes a longitudinal connecting seat fixedly connected to a vertical rod 10, and a transverse connecting seat 3 fixedly connected to an end of a cross rod 20; the end part of the transverse connecting seat 3 is detachably and fixedly connected to the side wall of the longitudinal connecting seat. The longitudinal connecting seat comprises a lower base 1 connected to the upper end of the lower upright rod 10 and an upper base 2 connected to the lower end of the upper upright rod 10, wherein the upper base 2 is detachably and fixedly connected to the upper end of the lower base 1. The end part of the transverse connecting seat 3 is fixedly connected to the side wall of the upper base 2 or the lower base 1 through a mortise and tenon structure, and when the upper base 2 is fixedly connected with the lower base 1, the mortise and tenon structure of the end part of the transverse connecting seat 3 is locked.

The longitudinal connecting seat of the socket key slot type connecting piece is used for being connected to the vertical rod 10, the transverse connecting seat 3 is fixedly connected to the end part of the transverse rod 20, then the end part of the transverse connecting seat 3 is detachably and fixedly connected to the side wall of the longitudinal connecting seat, and connection between the transverse rod 20 and the vertical rod 10 can be achieved. In particular, the difference between this solution and the prior patent solution described in the background art is that the longitudinal connecting base is divided into an upper base 2 and a lower base 1, the lower base 1 is connected to the upper end of the lower upright 10, and the upper base 2 is connected to the lower end of the upper upright 10. That is, the upper base 2 and the lower base 1 are connected to the ends of the vertical rods 10, so that the end connection of the upper and lower vertical rods 10 is realized, instead of the penetrating scheme in the prior patent scheme. Based on this, the first point effect of the present solution is achieved: namely, the upper base 2 and the lower base 1 are arranged on the end parts of the vertical rods 10, and the vertical supporting force provided by the vertical rods 10 for the structures of the upper base 2, the lower base 1 and the cross rods 20 connected with the upper base 1 is derived from supporting and fixedly connecting, and the strength is far greater than that of a circumferential welding seam in a sleeve welding mode. And need not the welding during the installation, easy dismounting can reuse.

In the scheme shown in the figure, the lower base 1 is a column, and four side walls of the lower base 1 are connected with four cross bars 20 by mortise and tenon mechanisms.

Further, the end of the transverse connecting seat 3 is fixedly connected to the side wall of the upper base 2 or the lower base 1 through a mortise and tenon structure. When the upper base 2 is fixedly connected with the lower base 1, the mortise and tenon structure at the end part of the transverse connecting seat 3 is locked. So as to achieve the second point effect of the scheme: on the basis that current mortise and tenon structure realized unidirectional locking, adopt base 2 and lower base 1 cooperation, realize locking in mortise and tenon structure withdrawal direction, so can not appear horizontal union coupling spare and the horizontal pole 20 of connecting receive the problem of lifting up the strength and relieving mortise and tenon structure promptly.

In summary, compared with the prior patent proposal, the scheme has the advantages of stable connection, high connection strength, convenient disassembly and assembly and repeated use.

In a further embodiment as shown in fig. 2 and 4, the upper end surface of the lower base 1 is provided with a connecting post 11 protruding upward, and the lower end surface of the upper base 2 is provided with a connecting groove 21. The connecting column 11 of the lower base 1 is inserted into the connecting groove 21 of the upper base 2 and is axially locked by a turnbuckle. The connection column 11 is inserted into the connection groove 21, so that insertion and positioning in the radial direction can be realized. Then the locking in the axial direction is realized by the circumferential turnbuckle locking, and the circumferential anti-falling is realized. When unlocking, the disassembly can be realized by firstly releasing the axial locking through circumferential rotation, so as to ensure that the use state is not loosened. In the specific embodiment in the figure, the connecting column 11 of the lower base 1 is constructed in a gradual shape with thick end and thin root, and the side wall of the end of the connecting column 11 is constructed with a first tangent 12. The notch of the connecting groove 21 is provided with a first flange 22 matched with the first tangential surface 12, and the inner side wall of the connecting groove 21 is provided with a first locking groove 23 for locking the connecting column 11 in a screwing way. This solution requires, during the plugging, the first flange 22 of the connecting groove 21 to be aligned with the first cut-out 12 of the connecting post 11, and then the connecting post 11 to be inserted inside the connecting groove 21. After the connecting column 11 is inserted into the first locking groove 23, the upper base 2 is rotated to enable the connecting column 11 and the connecting groove 21 to be misplaced, and the connecting column 11 is locked in the first locking groove 23 in a screwing mode, so that the axial locking of the screwing mode is achieved. In the scheme, the connecting column 11 is constructed into a gradual change shape with thick end parts and thin root parts and a matching structure of the first tangential surface 12 and the first flange 22, so that the connecting column is difficult to axially disconnect after the plugging is completed, and the connecting strength is ensured.

As shown in fig. 3, the side wall of the upper base 2 or the lower base 1 is provided with a mortise 13, the end of the transverse connecting seat 3 is provided with a tenon 31, and the tenon 31 of the transverse connecting seat 3 is inserted into the mortise 13 on the side wall of the upper base 2 or the lower base 1. The notch of the tenon 13 extends to the lower end face of the upper base 2 or the upper end face of the lower base 1, and when the upper base 2 is fixedly connected with the lower base 1, the end face of the upper base 2 or the lower base 1 at least partially presses against the tenon 31, so that the tenon 31 is locked in the tenon 13. Based on the above scheme, after the transverse connecting seat 3 is inserted into the mortises 13 on the side wall of the upper base 2 or the lower base 1, the upper base 2 is fixedly connected with the lower base 1, and can be pressed against the tenons 31 to prevent the withdrawal. The mortise and tenon structure is ensured not to be unlocked accidentally, and the safety of the scaffold is ensured. In a further preferred embodiment, the dovetail groove 13 is constructed as a dovetail groove with a small bottom width and a large upper end width. The dovetail 31 is constructed to fit the dovetail groove. With this structure, the dovetail groove of the gradual change type is engaged with the tenon 31. The small end of the tenon 31 is aligned with the large end of the dovetail groove at the beginning of insertion, so that the alignment is convenient. Guiding gradually through gradual change in the plugging process. After the insertion is completed, the dovetail groove is completely matched with the tenon 31, so that the dovetail groove is stable and reliable.

As shown in fig. 7-9, the socket key slot type connecting piece further comprises an inclined support seat 4, wherein the inclined support seat 4 is obliquely arranged and fixedly connected to the end angle of the longitudinal connecting seat above or below the transverse connecting seat 3, and the inclined support seat 4 is fixedly connected to the end part of the inclined rod 30. The diagonal braces 4 are employed to support the diagonal rods 30 to provide a stable scaffolding structure. In the scheme shown in the figure, the inclined support seat 4 is clamped and fixed between the transverse connecting seat 3 and the upper base 2 or between the transverse connecting seat 3 and the lower base 1. The scheme is that an inclined support seat 4 is clamped and fixed by an upper base 2 and a lower base 1 on two sides of a transverse connecting seat 3.

In a specific scheme, the upper and lower side walls of the transverse connecting seat 3 are provided with first oblique tooth grooves 32, and the circumferential side wall of the upper base 2 and the circumferential side wall of the lower base 1 below the transverse connecting seat 3 are provided with second oblique tooth grooves 14. At least one of the first and second helical flutes 32, 14 extends from only one end thereof to the end opening 321. The bottom of the inclined support seat 4 is provided with a support leg 41, two end parts of the support leg 41 of the inclined support seat 4 at the upper end angle are clamped in the first inclined tooth groove 32 of the transverse connecting seat 3 and the second inclined tooth groove 14 of the upper base 2, and two end parts of the support leg 41 of the inclined support seat 4 at the lower end angle are clamped in the first inclined tooth groove 32 of the transverse connecting seat 3 and the second inclined tooth groove 14 of the lower base 1. In this solution, a clamping opening is formed between the transverse connection seat 3 and the upper base 2 and the lower base 1 on both sides thereof, and two ends of the leg 41 of the inclined support seat 4 are pushed into the first inclined tooth groove 32 and the second inclined tooth groove 14 based on the conical opening formed by the first inclined tooth groove 32 on the transverse connection seat 3 and the second inclined tooth groove 14 on the upper base 2 or the lower base 1, and since at least one of the inclined tooth grooves 32 and the second inclined tooth groove 14 extends to the end opening 321, the leg is propped and positioned when being pushed into the bottom.

In a further scheme, the side wall of the supporting leg 41 of the inclined support seat 4 is provided with a second tangential plane 42, and the inside of the first inclined tooth groove 32 and the inside of the second inclined tooth groove 14 are respectively provided with a second locking groove 15 for the supporting leg 41 of the inclined support seat 4 to be locked in a screwing way. Based on the setting of the second tangent plane 42, in the pushing process, the stabilizer blade 41 of the inclined support seat 4 can be pushed into the first inclined tooth groove 32 and the second inclined tooth groove 14 based on the avoidance of the second tangent plane 42, and then the inclined support seat 4 is rotated for a certain angle, so that the edge of the inclined support seat, which is not provided with the second tangent plane 42, is clamped into the second locking groove 15, and locking and anti-falling are realized.

The connection between the upper base 2, the lower base 1 and the upright 10, the connection between the inclined support 4 and the inclined rod 30, and the connection between the transverse connection base 3 and the cross rod 20 can be achieved by the existing connection methods, such as tight fitting, welding, etc.

The socket key groove type connecting piece based on the scheme is installed as follows:

1, after the installation of the upright 10 on the layer is completed, fixedly connecting a lower base 1 to the upper end part of the upright 10; the end parts of the cross bars 20 are fastened with the transverse connecting seats 3, and a plurality of cross bars 20 at the edge of the lower base 1 and the transverse connecting seats 3 are connected to the lower base 1 by mortise and tenon structures.

2, the upper base 2 is spliced on the lower base 1 by adopting the scheme and locked by screwing 90 degrees, and the upper base 2 is pressed against a plurality of transverse connecting seats 3 on the lower base 1 when locking the upright 10 on the layer and the upright 10 on the upper layer;

and 3, installing the inclined support seats 4 on the connecting piece, and when each inclined rod 30 is installed, sliding the inclined support seats 4 at two ends of the inclined rod 30 in from two adjacent diagonal sides of the same vertical face respectively and axially rotating the inclined support for 90 degrees for locking.

And 4, mounting and circulating layer by layer in this way.

Example 2:

as shown in fig. 10, this embodiment is directed to a scaffold comprising a socket and keyway connection as described in embodiment 1.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.

Claims (10)

1. A socket key slot type connecting piece comprises a longitudinal connecting seat fixedly connected to a vertical rod (10) and a transverse connecting seat (3) fixedly connected to the end part of a cross rod (20); the end part of the transverse connecting seat (3) is detachably and fixedly connected to the side wall of the longitudinal connecting seat; the method is characterized in that: the longitudinal connecting seat comprises a lower base (1) connected to the upper end of the lower upright (10) and an upper base (2) connected to the lower end of the upper upright (10), and the upper base (2) is detachably and fixedly connected to the upper end of the lower base (1); the end part of the transverse connecting seat (3) is fixedly connected to the side wall of the upper base (2) or the lower base (1) through a mortise and tenon structure, and when the upper base (2) is fixedly connected with the lower base (1), the mortise and tenon structure of the end part of the transverse connecting seat (3) is locked.

2. The socket and keyway connection of claim 1, wherein: the upper end face of the lower base (1) is provided with a connecting column (11) in an upward protruding mode, and a connecting groove (21) is formed in the lower end face of the upper base (2); the connecting column (11) of the lower base (1) is inserted into the connecting groove (21) of the upper base (2) and is axially locked by a turnbuckle.

3. A socket and keyway connection as claimed in claim 2, wherein: the connecting column (11) of the lower base (1) is constructed into a gradual change shape with thick end parts and thin root parts, and a first tangent plane (12) is constructed on the side wall of the end part of the connecting column (11); a first flange (22) matched with the first tangential plane (12) is formed on a notch of the connecting groove (21), and a first locking groove (23) for locking the rotary buckle of the connecting column (11) is formed on the inner side wall of the connecting groove (21).

4. The socket and keyway connection of claim 1, wherein: the side wall of the upper base (2) or the lower base (1) is provided with a mortise (13), the end part of the transverse connecting seat (3) is provided with a tenon (31), and the tenon (31) of the transverse connecting seat (3) is inserted into the mortise (13) on the side wall of the upper base (2) or the lower base (1); the notch of the tenon groove (13) extends to the lower end face of the upper base (2) or the upper end face of the lower base (1), and when the upper base (2) is fixedly connected with the lower base (1), the end face of the upper base (2) or the lower base (1) is at least partially pressed against the tenon (31) so that the tenon (31) is locked in the tenon groove (13).

5. The socket and keyway connection as claimed in claim 4, wherein: the back of the tenon groove (13) is constructed into a dovetail groove with small bottom width and large upper end width; the dovetail (31) is configured to fit the dovetail groove.

6. A socket and keyway connection as claimed in any one of claims 1 to 5, wherein: the inclined support seat (4) is obliquely arranged and fixedly connected to the end angle of the longitudinal connecting seat above or below the transverse connecting seat (3), and the inclined support seat (4) is fixedly connected to the end of the inclined rod (30).

7. The socket joint keyway connection as set forth in claim 6, wherein: the inclined support seat (4) is clamped and fixed between the transverse connecting seat (3) and the upper base (2) or between the transverse connecting seat (3) and the lower base (1).

8. The socket joint keyway connection as set forth in claim 7, wherein: the upper side wall and the lower side wall of the transverse connecting seat (3) are respectively provided with a first oblique tooth groove (32), and the circumferential side wall of the upper base (2) and the circumferential side wall of the lower base (1) below the transverse connecting seat (3) are respectively provided with a second oblique tooth groove (14); at least one of the first and second helical tooth grooves (32, 14) extends from only one end thereof to an end opening (321); the bottom of the inclined support seat (4) is provided with support legs (41), two end parts of the support legs (41) of the inclined support seat (4) at the upper end angle are clamped in the first inclined tooth grooves (32) of the transverse connection seat (3) and the second inclined tooth grooves (14) of the upper base (2), and two end parts of the support legs (41) of the inclined support seat (4) at the lower end angle are clamped in the first inclined tooth grooves (32) of the transverse connection seat (3) and the second inclined tooth grooves (14) of the lower base (1).

9. The socket joint keyway connection as set forth in claim 8, wherein: the side wall of the supporting leg (41) of the inclined supporting seat (4) is provided with a second tangential plane (42), and the supporting leg (41) of the inclined supporting seat (4) is pushed into the first inclined tooth groove (32) and the second inclined tooth groove (14) based on avoidance of the second tangential plane (42); the first oblique tooth groove (32) and the second oblique tooth groove (14) are internally provided with a second locking groove (15) for the rotary locking of the supporting leg (41) of the oblique supporting seat (4).

10. A scaffold, characterized in that: comprising a socket and keyway connection as claimed in any one of claims 1 to 9.