CN217378866U - Reinforced connecting piece and reinforced connecting system - Google Patents

Abstract

The utility model relates to a strengthen connecting piece and strengthen connected system, the connecting piece includes first connecting portion and second connecting portion, wherein: the mortise lock head of the first connecting part is exposed out of the first tensioning screw cap and is provided with outer annular grains; the second connecting part comprises a second tensioning screw cap and a clamping component positioned between the baffle ring and the middle support sleeve, the clamping component consists of an elastic body and a clamping device inserted at the end part of the elastic body, and the inner side surface of the exposed multi-piece conical clamping piece of the clamping device is provided with inner annular grains; the mortise lock head penetrates through the middle support sleeve to be meshed with the multi-piece type conical clamping sheet, and the butt joint connection of the two connecting parts is realized. Compared with the prior art, the utility model discloses can effectively promote the suitability of multi-disc formula card, avoid the interlock difficulty between the disordered mortise lock head that leads to of multi-disc formula card order and the armful card, promote assembly efficiency, more perfect connection at the ordinary times of two component terminal surfaces, make a plurality of connecting pieces of two component terminal surfaces atress simultaneously, use with the connection end plate cooperation, it is more reliable.

Description

Reinforced connecting piece and reinforced connecting system

Technical Field

The utility model belongs to the technical field of building element, a coupling assembling for prefab (component) is related to, especially relate to a reinforced connection spare and reinforced connection system.

Background

The prior art mostly uses welding connection for connecting prefabricated parts (such as uplift piles, etc.), and after pile bodies of two welding piles are aligned, metal end plates of pile heads are welded by using a welding method, so that the operation is inconvenient, and the welding metal plates at the connecting part are exposed to rust easily, thereby influencing the use effect and the service life.

In order to solve the above disadvantages of the welding connection form of the metal end plate, a butt joint piece of a prefabricated member disclosed in chinese patent CN101519876A, etc. is provided, and a plurality of independent cards are directly placed on a gasket to realize the locking of a plug connector with an enlarged portion. However, the above structure generally has the disadvantages that the card is easy to be neglected or fall off, and the reliable connection can be realized only by inserting the plug in place.

In order to overcome the defects of the butt joint piece, chinese patent CN214364105U discloses an integral threaded clasping connecting piece, which adopts an integral clasping clamp composed of an elastic body and clasping clamps inserted at the ends of the elastic body, wherein a part of the structure of the clasping clamp is inserted into the elastic body, so that the position limitation of the clasping clamp is realized, an elastic body clasping clamp integral structure is formed, and the condition that the clamping plate is directly placed on the gasket and is easy to miss-fit or fall off can be effectively avoided. In addition, due to the thread meshing form of the thread mortise lock head and the multi-piece type tapered thread clamping piece, even if the thread mortise lock head is incompletely inserted, a good connection effect can be achieved, connection of uneven end faces of the two prefabricated parts is perfected, and a plurality of connecting pieces of the end faces of the two components can be stressed simultaneously.

However, in practical use, it is found that, since the thread is a continuous protrusion (or recess) formed along a spiral line, the connector of chinese patent CN214364105U uses a threaded locking head in a thread engagement form and a multi-piece tapered thread card, and has at least one of the following disadvantages:

(1) the multi-piece type tapered thread clamping piece needs to be inserted into the elastic body in advance strictly according to the trend of a spiral line (under the condition of using four pieces, the order of 1, 2, 3 and 4 is needed to be followed) so as to form an internal thread structure matched with the thread plug-in lock head, once the order is disordered or inserted wrongly, the engagement is difficult, even the connection of prefabricated pieces cannot be realized, and due to the connection principle, the reworking is difficult to be carried out under the condition of not breaking, high requirements are provided for the quality of operators, and the assembly time is long.

(2) When the multi-piece type tapered thread clamping piece is processed, an internal thread is processed firstly by a tapered barrel, then the tapered barrel is cut into a plurality of pieces, and during the cutting, different tapered barrels are hardly guaranteed to be processed into a plurality of tapered pieces, threads on the tapered pieces at the same sequence are completely the same, so that the multi-piece type tapered thread clamping piece with different groups can be hardly replaced, and the multi-piece type tapered thread clamping piece is hardly suitable for engineering use under the condition of large quantity.

For the above reasons, the clasping card of chinese patent CN214364105U needs to be provided with the integrally connected inserting portions to form an integrated structure, so as to avoid the above disadvantages, otherwise, it would be very unfavorable for engineering application, which greatly limits its application range.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a strengthening connection spare in order to overcome the defect that above-mentioned prior art exists, when can effectively prevent that the multi-disc formula card of current connecting piece from neglected loading or droing, effectively promote the suitability of multi-disc formula card, avoid the interlock difficulty between the mortise lock head that the multi-disc formula card order leads to in disorder and the armful card, the time of transferring shortens by a wide margin when using the multi-disc formula card. The connection of the two component end faces is improved, a plurality of connecting pieces of the two component end faces can bear force simultaneously, the installation is convenient, the construction butt joint is fast, and the connection is environment-friendly and safe. Further, will the utility model discloses a connecting piece uses the prefab with the connection end plate cooperation and strengthens connected system when, and existing mechanical connection can weld again, realizes duplicate protection, and the prefab after connecting is safe and reliable more.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a reinforced connecting piece in a first aspect, which comprises a first connecting part and a second connecting part, the first connecting part comprises a first tensioning nut and a latch rod, one end of the latch rod extends into and is connected with the first tensioning nut, the other end of the latch rod is a latch head and is exposed out of the first tensioning nut, the second connecting part comprises a second tensioning nut with one end provided with a retaining ring, a middle supporting sleeve connected in the other end of the second tensioning nut and a clamping component arranged between the retaining ring and the middle supporting sleeve, the clasping component consists of an elastic body and a clasping clamp inserted at the end part of the elastic body, the clasping clamp faces the middle support sleeve, the outer side surface of the multi-piece type conical clamping piece is contacted with the middle support sleeve, and the contact surfaces of the multi-piece type conical clamping piece and the middle support sleeve are matched;

the mortise lock head is provided with an outer ring, the outer ring is formed by a plurality of annular bulges which are arranged along the axial direction of the mortise lock rod, and the annular bulges are formed on the outer side surface of the mortise lock rod along the annular direction of the mortise lock rod;

the inner side surface of the multi-piece type conical card is provided with inner annular grains matched with the outer annular grains;

the mortise lock head penetrates through the middle support sleeve to be meshed with the multi-piece type conical clamping sheet, and butt connection of the first connecting portion and the second connecting portion is achieved.

Preferably, the annular protrusion is an annular triangular protrusion, and the shape of the annular triangular protrusion on the axial section of the latch lever is triangular.

Preferably, the included angles between two side edges of the annular triangular protrusion on the axial section of the latch rod and the straight line of the axial direction of the latch rod are equal and are both 30-60 degrees.

Preferably, the included angles between two side edges of the annular triangular protrusion on the axial section of the latch rod and the straight line of the axial direction of the latch rod are equal and are both 45 degrees.

Preferably, the spacing distance between two adjacent annular protrusions is 0.

Preferably, the mortise lock head further comprises a guide portion, the guide portion is arranged at the end portion of the mortise lock head and is provided with a circular truncated cone section with a cross section gradually reduced towards the end portion of the mortise lock head and a cylindrical section arranged at one end of the circular truncated cone section with a smaller cross section, and the side surface of the circular truncated cone section is connected with the side surface of the annular protrusion close to the end portion of the mortise lock head and extends smoothly.

Preferably, the multi-piece conical card is surrounded by a plurality of separated conical pieces, the outer side of the multi-piece conical card is conical, and the contact surface between the middle support sleeve and the multi-piece conical card is conical matched with the outer side of the multi-piece conical card.

Preferably, the outer side surface of the multi-piece type conical clamping piece is provided with an external thread, and the contact surface of the middle support sleeve and the multi-piece type conical clamping piece is provided with an internal thread matched with the external thread of the multi-piece type conical clamping piece.

Preferably, the clasp further has an insertion portion for being inserted into the elastic body, and an end portion of the elastic body is provided with a slot matched with the insertion portion.

Preferably, the insertion portion is defined by a plurality of arc pieces which are respectively connected to the multi-piece conical clamping pieces and are enclosed into a cylindrical shape.

Preferably, two adjacent arc pieces are independent or connected with each other.

Preferably, the elastomer is cylindrical elastic glue; or, the elastic body is composed of cylindrical elastic rubber and a spring arranged in the cylindrical elastic rubber.

Preferably, the inner diameter of the middle support sleeve is matched with the inner diameter of the multi-piece conical card.

Preferably, the tapered head has a circular cross-section (i.e. a circumferential cross-section).

The utility model discloses a second aspect provides a reinforced connection system, including set up respectively in the connection end plate and a plurality of said reinforcement connecting piece on the butt joint terminal surface of two prefabs that butt joint connects, be equipped with a plurality of nut connecting holes on the connection end plate, a plurality of reinforcement connecting piece's first stretch-draw nut and second stretch-draw nut correspond respectively through the screw and connect in the nut connecting hole on the connection end plate of two prefabs; the connecting end plates on the butt joint end surfaces of the two prefabricated parts are connected in a welding mode after the mortise lock head of the reinforcing connecting piece is meshed with the multi-piece type conical clamping piece.

Preferably, the connecting end plate has a square plate shape or a circular plate shape.

The utility model discloses a theory of operation is:

the first connecting part and the second connecting part are respectively arranged on the butt joint end faces of two prefabricated parts to be in butt joint connection, when the two prefabricated parts are in butt joint connection, the plug-in lock head of the plug-in lock rod of the first connecting part is inserted into the second connecting part and passes through the middle support sleeve to be inserted into the clamping assembly, when the plug-in lock head is inserted into the clamping assembly, the elastomer is extruded and contracted through the clamping, so that the multi-piece type conical clamping piece of the clamping is separated from the conical inclined plane of the middle support sleeve and is expanded simultaneously, and due to the expansion of the multi-piece type conical clamping piece, the elastic force of the elastomer can enable the clamping to reset and be contacted with the middle support sleeve through the conical inclined plane, and simultaneously the part of the plug-in lock head inserted into the clamping is occluded; and then the mortise lock head is inserted continuously, and the process is repeated until the butt joint of the two prefabricated parts is completed.

Compared with the prior art, the utility model discloses utilize the protruding ring line structure who forms of multichannel annular, when using the multi-disc formula card, carry out the assembling process, compare in current screw thread latch rod structure, need not distinguish the card order, effectively promote the suitability of multi-disc formula card, avoid the interlock difficulty between the plug-in lock head that the multi-disc formula card order leads to in disorder and the armful card, the time of transferring shortens by a wide margin when using the multi-disc formula card, specially adapted embraces the situation that the card is independent a plurality of cards. The connection of the two component end faces is improved, a plurality of connecting pieces of the two component end faces can bear force simultaneously, the installation is convenient, the construction butt joint is fast, and the connection is environment-friendly and safe. Further, will the utility model discloses a connecting piece uses the prefab with the connection end plate cooperation and strengthens connecting system when, existing mechanical connection can weld again, realizes duplicate protection, and the prefab after connecting is safe and reliable more.

Drawings

Fig. 1 is an exploded schematic view of a connector in embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of connection of a connector according to embodiment 1 of the present invention, wherein (a) is before the first connection portion and the second connection portion are connected, (b) is during the connection of the first connection portion and the second connection portion, and (c) is completed after the connection of the first connection portion and the second connection portion.

Fig. 3 is a schematic front view of a section (a) and a schematic front view (b) of a clamp of a connector in embodiment 1 of the present invention.

Fig. 4 is a schematic sectional front view (a), a schematic front view (b), and a schematic plan view (c) of an elastic body of a connector according to example 1 of the present invention.

Fig. 5 is a schematic front view of a section (a) and a schematic front view (b) of a clasping assembly of a connecting member in embodiment 1 of the present invention.

Fig. 6 is a schematic front sectional view (a) and a schematic front view (b) of the middle brace of the connecting member according to embodiment 1 of the present invention.

Fig. 7 is a schematic structural view of a latch lever of a connector according to embodiment 1 of the present invention.

Fig. 8 is a partially enlarged view of the area a in fig. 7.

Fig. 9 is a schematic front sectional view (a) and a schematic front view (b) of a clasper of a connecting piece in embodiment 2 of the present invention.

Fig. 10 is a schematic structural view of a clasping assembly of a connecting member in embodiment 3 of the present invention.

Fig. 11 is a schematic connection diagram of a preform reinforced connection system according to embodiment 1 of the present invention, wherein (a) is before the first connection portion and the second connection portion are connected, (b) is during the connection of the first connection portion and the second connection portion, (c) is after the connection of the first connection portion and the second connection portion, and (d) is after the welding of the connection end plate.

FIG. 12 is an exploded view of the preform reinforcement attachment system of FIG. 11.

In the drawing, 1 is a first connecting portion, 11 is a first tension nut, 12 is a mortise lock rod, 121 is a mortise lock head, 1211 is a guide portion, 12111 is a circular truncated cone segment, 12112 is a cylindrical segment, 1212 is an outer ring thread, 12121 is an annular triangular protrusion, 121211 is a side edge, 122 is a mortise lock rod large head, 2 is a second connecting portion, 21 is a second tension nut, 211 is a retainer ring, 22 is an intermediate retainer ring, 221 is an internal thread, 222 is a retainer external thread, 23 is a clasping assembly, 231 is an elastic body, 2311 is a slot, 232 is a clasping card, 2321 is a multi-piece tapered card, 23211 is an inner ring thread, 23212 is an external thread, 23213 is a tapered piece, 2322 is an inserting portion, 23221 is an arc piece, 23222 is a connecting portion, 3 is a connecting end plate, 301 is a nut connecting hole, and 31 is a welding portion.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

A reinforcing connector, as shown in fig. 1, 2(a), 2(b) and 2(c), comprising a first connector portion 1 and a second connector portion 2, wherein:

the first connecting part 1 comprises a first draw-nut 11 and a mortise-lock rod 12, one end of the mortise-lock rod 12 extends into and is connected in the first draw-nut 11, the other end of the mortise-lock rod is a mortise-lock head 121 and is exposed out of the first draw-nut 11, the mortise-lock head 121 is provided with an outer ring 1212, the outer ring 1212 is formed by a plurality of annular bulges arranged along the axial direction of the mortise-lock rod 12, and the annular bulges are formed on the outer side surface of the mortise-lock rod 12 along the annular direction of the mortise-lock rod 12;

the second connecting portion 2 comprises a second tensioning screw cap 21, a middle support sleeve 22 and a clamping component 23, wherein one end of the second tensioning screw cap 21 is provided with a retaining ring 211 (the retaining ring 211 can be formed by shrinking the end portion), the middle support sleeve 22 is connected into the other end of the second tensioning screw cap 21, the clamping component 23 is arranged between the retaining ring 211 and the middle support sleeve 22, the clamping component 23 consists of an elastic body 231 and a clamping hoop 232 inserted into the end portion of the elastic body 231, the clamping hoop 232 faces the middle support sleeve 22 and is provided with a multi-piece conical clamping strap 2321 exposed out of the end portion of the elastic body 231, the inner side surface of the multi-piece conical clamping strap 2321 is provided with an inner annular groove 23211 matched with the outer annular groove 1212, the outer side surface is contacted with the middle support sleeve 22, and the contact surfaces of the outer side surface and the middle support sleeve 22 are matched; the latch head 121 penetrates through the middle support sleeve 22 to be meshed with the multi-piece tapered card 2321, so that the first connecting part 1 and the second connecting part 2 are in butt joint connection.

As shown in fig. 2(a), 2(b) and 2(c), in use, the first connecting portion 1 and the second connecting portion 2 are respectively disposed on the butt end surfaces of two preforms that need to be butt-jointed (generally, a plurality of first connecting portions 1 and second connecting portions 2 need to be correspondingly disposed on the butt end surfaces of the two preforms), and the first connecting portion 1 and the second connecting portion 2 may be disposed on the lower end surface of the preform above and the second connecting portion 2 may be disposed on the upper end surface of the preform below. When two prefabricated parts are in butt joint connection, first connecting parts 1 and second connecting parts 2 of a plurality of groups of connecting pieces on the upper end surface and the lower end surface of the two prefabricated parts are aligned, the mortise lock head 121 of the mortise lock rod 12 of the first connecting part 1 is inserted into the second connecting part 2 downwards, the mortise lock head penetrates through the middle support sleeve 22 and is inserted into the holding assembly 23, when the mortise lock head 121 is inserted into the holding assembly 23, the elastic body 231 is pressed downwards through the holding clamp 232, the elastic body 231 is pressed and contracted downwards, so that the multi-piece type conical clamp 2321 (moving downwards) of the holding clamp 232 and the conical inclined surface of the middle support sleeve 22 are separated from contact and are expanded simultaneously, and because the multi-piece type conical clamp 2321 is expanded, the elastic force of the elastic body 231 (moving upwards) can cause the holding clamp 232 (moving upwards and gathering) to reset, and is meshed with the middle support sleeve 22 through conical contact, and the part of the mortise lock head 121 in the holding clamp 232 is inserted at the same time; then the mortise lock head 121 is inserted continuously, and the process is repeated until the two prefabricated parts are butted.

Referring to fig. 1, 2, 3(a) and 3(b), the multi-piece conical card 2321 is surrounded by a plurality of separated conical pieces 23213, the outer side surface is conical, and the contact surface between the middle brace 22 and the multi-piece conical card 2321 is conical matching with the outer side surface of the multi-piece conical card 2321. The number of the tapered pieces 23213 may be 2 or more, for example, and in the present embodiment, there are four tapered pieces constituting the multi-piece tapered card 2321.

The special design embraces the card 232 structure to make its partly structure insert in the elastomer 231, realized embracing the spacing of card, can effectively avoid the easy condition of neglected loading or droing that appears on the gasket is directly placed to the card of connecting piece among the prior art. In addition, due to the annular meshing form of the mortise lock head 121 and the multi-piece type conical clamping piece 2321, even if the mortise lock head is incompletely inserted, a good connection effect can be achieved, connection of uneven end faces of two prefabricated parts is perfected, and a plurality of connecting pieces on the end faces of two components can be stressed simultaneously.

As shown in fig. 7 and 8, in the present embodiment, the annular protrusion is an annular triangular protrusion 12121, and the shape of the annular triangular protrusion 12121 in the axial section of the mortise lock lever 12 is triangular. The annular triangular protrusion 12121 is convenient to process, and the inclined edge of the annular triangular protrusion is more beneficial to inserting the mortise lock head 121 into the clasp 232 and meshing the mortise lock head with the clasp 232. Both sides 121211 of the annular triangular projection 12121 on the axial section of the mortise lock lever 12 are at the same angle of 30 ° to 60 ° to the line of the axial direction of the mortise lock lever 12. The annular triangular protrusion 12121 in the angle range is easy to insert into the clasping clamp 232 and realize occlusion, and the included angles of the two side edges and the straight line of the axial direction are equal, so that the smoothness and stability of the insertion process are ensured. It is further preferable in this embodiment that both side edges 121211 of the annular triangular projection 12121 in the axial section of the mortise lock lever 12 are at equal angles of 45 ° to the line of the axial direction of the mortise lock lever 12. Furthermore, in this embodiment, the spacing distance between two adjacent annular protrusions is preferably 0. Therefore, the annular protrusions can be arranged in a limited insertion length as many as possible, and the connection is more reliable.

The annular structure that this embodiment utilized the protruding formation of multichannel annular, when using the multi-disc card, carry out the assembling process, compare in current screw thread latch lever structure, need not distinguish the card order, effectively promote the suitability of multi-disc card, interlock difficulty between avoiding the disordered latch head that leads to of multi-disc card order and embracing the card, the time of transferring when using the multi-disc card shortens by a wide margin, specially adapted embraces the situation that the card is independent a plurality of cards.

In this embodiment, the outer side surface of the multi-piece conical clamping sheet 2321 is preferably conical and hollow, with the smaller diameter end facing the middle brace 22 and the larger diameter end facing the stop ring 211. The contact surface of the middle brace 22 and the multi-piece tapered thread clamping piece 2321 is a taper matched with the outer side surface of the multi-piece tapered clamping piece 2321, and the function of gathering the multi-piece tapered thread clamping piece 2321 when the multi-piece tapered clamping piece 2321 contacts the middle brace 22 is achieved. Further, an external thread 23212 may be further disposed on an outer side surface of the multi-piece tapered card 2321, so that the outer side of the multi-piece tapered card 2321 is in a tapered inclined thread shape (the external thread 23212), the inner side of the multi-piece tapered card 2321 is provided with a nut having an internal ring thread 23211, and a contact surface of the middle brace 22 and the multi-piece tapered card 2321 is provided with an internal thread 221 matched with the external thread 23212 of the multi-piece tapered card 2321, so that the connection is more stable. As shown in fig. 3(a), fig. 3(b), fig. 4(a), fig. 4(b), fig. 4(c), fig. 5(a), fig. 5(b), fig. 6(a) and fig. 6(b), the clasping card 232 may further have an insertion portion 2322 for being inserted into the elastic body 231, an end portion of the elastic body 231 is provided with a slot 2311 matched with the insertion portion 2322, the insertion portion 2322 is inserted into the slot 2311 during use, and the slot 2311 is annular. The insertion portion 2322 is preferably defined by a plurality of circular arc pieces 23221 connected to the multi-piece conical clamping piece 2321 and enclosing a cylindrical shape. In this embodiment, the insertion portions 2322 are independent (the adjacent arc-shaped pieces 23221 are independent), and are inserted into the elastic body 231 in advance to achieve pre-positioning, so that the installation is convenient, and neglected installation or falling off is not easy. In practice, the clasping card 232 can be obtained by machining a cylindrical metal part through a machining process such as turning. The clasping means 232 may be made of an elastic metal material (for example, an alloy material with good elasticity and toughness and high strength may be used, and a commercially available elastic metal material may be selected according to the requirement, for example, manganese steel or 35GrMo may be used as a material of the high-strength screw). The elastic body 231 is cylindrical elastic rubber, or the elastic body 231 is composed of cylindrical elastic rubber and a spring arranged in the cylindrical elastic rubber, in this case, the spring and the cylindrical elastic rubber are formed by an injection molding and encapsulation method, in the embodiment, the elastic body 231 adopts the latter case, the existence of the spring can improve the elasticity of the elastic body 231, and the corrosion of the spring is avoided after encapsulation, so that the work of the whole connecting piece is more reliable. The clasping card 232 and the elastic body 231 can be molded by injecting glue.

In this embodiment, as shown in fig. 1, 2 and 7, one end of the latch rod 12 extending into and connected to the first stretch nut 11 is a latch rod large head 122, and the latch rod large head 122 is connected to the first stretch nut through threads. It is further preferred that the body of the mortise lock head 121 is cylindrical, with the outer threads 1212 provided on the outer side of the cylindrical body. In this embodiment, it is further preferable that the mortise lock head 121 further has a guide portion 1211 disposed at an end of the mortise lock head 121, having a truncated cone section 12111 whose cross section is gradually reduced toward the end of the mortise lock head 121 and a cylindrical section 12112 disposed at one end of the truncated cone section 12111 having a smaller cross section, and a side of the truncated cone section 12111 is in contact with and smoothly extends from a side of the annular protrusion near the end of the mortise lock head 121. The multi-piece tapered card 2321 can be corrected by the provision of the guide 1211 when the plug 121 is inserted, so that the insertion of the plug 121 is made smoother.

In this embodiment, the middle stay 22 is connected to the internal thread of the second stretch-draw nut 21 through the stay external thread 222, and the integrated clasping clamp 23 is limited in the second stretch-draw nut 21 through the middle stay 22 and the baffle ring 211. Preferably, the inner diameter of the intermediate brace 22 matches the inner diameter of the multi-piece tapered thread slip 2321.

The present embodiment further provides a prefabricated member reinforced connection system, as shown in fig. 11(a) - (d) and fig. 12 (only one connection end plate 3 around one reinforced connection member is illustrated in the drawings), including a connection end plate 3 respectively disposed on the butt end surfaces of two prefabricated members in butt connection and a plurality of reinforced connection members of embodiment 1, the connection end plate 3 is provided with a plurality of nut connection holes 301, and the first stretch nuts 11 and the second stretch nuts 21 of the plurality of reinforced connection members (preferably, the outer sides of the first stretch nuts 11 and the second stretch nuts 21 are provided with external threads, as shown in fig. 9) are respectively and correspondingly connected in the nut connection holes 301 on the connection end plate 3 of the two prefabricated members through threads; the connection end plates 3 on the butt end faces of the two preforms are welded after the latch heads 121 of the reinforcement connection are engaged with the multi-piece tapered clamping pieces 2321. When the first connecting portion 1 and the second connecting portion 2 are connected in place, the two connecting end plates 3 are also butted, for example, as shown in fig. 11(d), the two connecting end plates 3 are welded together in a welding manner, the welding may be performed along a circumference of the connecting end plate 3, and the welding position 31 is shown in fig. 11(d), so as to ensure the reliability of the welding. The connecting end plate 3 has a square plate shape or a circular plate shape (depending on the end face shape of the preform).

In some areas because the condition of soil property problem needs the enhancement connection or the particularity of considering the building connection makes the high condition of connection requirement, and a single kind is connected and can not reach the requirement, and this embodiment is through further setting up connection end plate 3, and existing mechanical connection can weld again, realizes duplicate protection, and the prefab after connecting is safe and reliable more.

In a word the utility model discloses can prevent effectively that current connecting piece installation card locking plate from neglected loading or coming off, more perfect the connection of two component terminal surfaces injustice, make a plurality of connecting pieces of two component terminal surfaces can both be atress simultaneously, simple to operate, the construction butt joint is fast, not only environmental protection but also safety.

Example 2

The reinforcing connecting member in this embodiment is substantially the same as embodiment 1, except that, as shown in fig. 9, two adjacent arc pieces 23221 of the clasping card 232 in this embodiment are connected with each other, so that not only are the separation between the plurality of conical pieces 2321 of the multi-piece conical piece 2321 ensured, but also the clasping card 232 is integrally formed, and is less prone to neglecting installation or falling off. Preferably, two adjacent arc sheets 23221 are connected with each other through a connecting portion 23222 located at one end of the arc sheet 23221 away from the clasping card 232, so that the influence on the expansion and the convergence of the multi-sheet tapered thread clamping card 2321 is reduced, and the integrity of the clasping card 232 is ensured.

Example 3

The reinforcing connecting member in this embodiment is substantially the same as embodiment 1, except that, as shown in fig. 10, the outer side surface of the tapered sheet 23213 of the clasping 232 in this embodiment is smooth, the outer side surface of the tapered sheet 23213 contacts with the middle brace 22, and the contact surfaces of the two contact are identical. Under the condition, the processing difficulty of the clamp 232 and the middle support sleeve 22 can be saved, the production efficiency is improved, and the part processing cost is reduced.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims (10)

1. The utility model provides a strengthening and connecting piece, includes first connecting portion (1) and second connecting portion (2), first connecting portion (1) contains first stretch-nut (11) and mortise lock pole (12), the one end of mortise lock pole (12) stretch into and connect in first stretch-nut (11), the other end of mortise lock pole (12) is for inserting tapered end (121), expose in first stretch-nut (11), second connecting portion (2) contain one end be equipped with keep off ring (211) second stretch-nut (21), connect in centre brace (22) in second stretch-nut (21) other end and set up in keep off ring (211) with centre brace (23) between brace (22), embrace and block subassembly (23) by elastomer (231) and insert and locate the card (232) of embracing of elastomer (231) tip are constituteed, embrace card (232) and prop cover (22) towards the centre, the outer side surface of the multi-piece type conical clamping piece (2321) is contacted with the middle support sleeve (22), and the contact surfaces of the multi-piece type conical clamping piece (2321) and the middle support sleeve are matched; the method is characterized in that:

the mortise lock head (121) is provided with an outer ring (1212), the outer ring (1212) is formed by a plurality of annular protrusions arranged along the axial direction of the mortise lock rod (12), and the annular protrusions are formed on the outer side surface of the mortise lock rod (12) along the annular direction of the mortise lock rod (12);

the inner side surface of the multi-piece conical card (2321) is provided with an inner annular ring (23211) matched with the outer annular ring (1212);

the mortise lock head (121) penetrates through the middle support sleeve (22) to be meshed with the multi-piece type conical clamping piece (2321), and butt joint connection of the first connecting portion (1) and the second connecting portion (2) is achieved.

2. The reinforcement connection according to claim 1, characterized in that the annular protrusion is an annular triangular protrusion (12121), the annular triangular protrusion (12121) having a triangular shape in an axial cross section of the latch bar (12).

3. The reinforcing connection according to claim 2, characterized in that the two sides (121211) of the annular triangular protrusion (12121) in the axial section of the latch bar (12) are at equal angles of 30 ° -60 ° to the line of the axial direction of the latch bar (12).

4. The reinforcing connection according to claim 3, characterized in that the two sides (121211) of the annular triangular protrusion (12121) in the axial section of the latch bar (12) are at equal angles of 45 ° to the line of the axial direction of the latch bar (12).

5. The reinforcement connector of claim 2, wherein the annular protrusions of adjacent two of the annular protrusions are spaced apart by a distance of 0.

6. A reinforcement connection according to any one of claims 1 to 5, characterized in that the mortise lock head (121) further has a guide portion (1211) provided at an end of the mortise lock head (121) and having a truncated cone section (12111) with a cross section gradually decreasing toward the end of the mortise lock head (121) and a cylindrical section (12112) provided at one end of the truncated cone section (12111) with a smaller cross section, the side of the truncated cone section (12111) meeting and extending smoothly with the side of the annular protrusion near the end of the mortise lock head (121).

7. The reinforcement connection according to claim 1,

the multi-piece conical clamping piece (2321) is surrounded by a plurality of separated conical pieces (23213), the outer side surface of the multi-piece conical clamping piece (23213) is conical, and the contact surface between the middle support sleeve (22) and the multi-piece conical clamping piece (2321) is conical and matched with the outer side surface of the multi-piece conical clamping piece (2321);

and/or the outer side surface of the multi-piece type conical clamping piece (2321) is provided with an external thread (23212), and the contact surface of the middle support sleeve (22) and the multi-piece type conical clamping piece (2321) is provided with an internal thread (221) matched with the external thread (23212) of the multi-piece type conical clamping piece (2321);

and/or the clasp (232) is also provided with an insertion part (2322) inserted into the elastic body (231), and the end part of the elastic body (231) is provided with an insertion groove (2311) matched with the insertion part (2322).

8. The reinforcement connection according to claim 7, characterized in that the insertion portion (2322) is defined by a plurality of circular arc pieces (23221) connected to the multi-piece tapered card (2321) and formed in a cylindrical shape;

two adjacent arc pieces (23221) are independent or connected with each other.

9. The reinforcement connection according to claim 1,

the elastic body (231) is cylindrical elastic glue;

alternatively, the elastic body (231) is composed of a cylindrical elastic rubber and a spring provided in the cylindrical elastic rubber.

10. A reinforced connection system, which comprises a connection end plate (3) and a plurality of reinforced connection pieces according to any one of claims 1 to 9, wherein the connection end plate (3) is respectively arranged on the butt-joint end surfaces of two prefabricated members which are in butt-joint connection, the connection end plate (3) is provided with a plurality of nut connection holes (301), and first tensioning nuts (11) and second tensioning nuts (21) of the plurality of reinforced connection pieces are respectively and correspondingly connected in the nut connection holes (301) on the connection end plates (3) of the two prefabricated members through threads; the connecting end plates (3) on the butt joint end faces of the two prefabricated members are connected in a welding mode after the mortise lock head (121) of the reinforced connecting piece is meshed with the multi-piece type conical clamping piece (2321).

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