CN212129694U

CN212129694U - Self-holding fixed steel bar connecting device

Info

Publication number: CN212129694U
Application number: CN202020631567.XU
Authority: CN
Inventors: 陶闻钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-11
Anticipated expiration: 2030-04-23

Abstract

A self-holding reinforcing steel bar connecting device comprises a sleeve base body, wherein the sleeve base body is provided with a sleeve base body cavity, one side of the sleeve base body cavity is provided with a sleeve base body cavity opening communicated with the outside, the shape of the sleeve base body cavity opening is rectangular, a first conical pipe section extends from the left end of the sleeve base body cavity, the first conical pipe section cavity is communicated with the sleeve base body cavity, a second conical pipe section extends from the right end of the sleeve base body, the second conical pipe section cavity is communicated with the sleeve base body cavity, the large-diameter ends of the first conical pipe section and the second conical pipe section face the sleeve base body cavity, and the first conical pipe and the second conical pipe are equal in length and size; the sleeve basal body cavity partition plate is inserted in the middle of the sleeve basal body; the first reinforcing steel bar end part is arranged in the sleeve base cavity and the first conical pipe section cavity from the holding and fixing mechanism and forms a sliding pair with the first conical pipe section cavity, and the second reinforcing steel bar end part is arranged in the sleeve base cavity and the second conical pipe section cavity from the holding and fixing mechanism and forms a sliding pair with the second conical pipe section cavity. The structure is simplified; the construction efficiency is improved; the connection is reliable; and the project progress is guaranteed.

Description

Self-holding fixed steel bar connecting device

Technical Field

The utility model belongs to the technical field of building element, concretely relates to from embracing solid bar connection device.

Background

The term "reinforcing bar coupler" is used to connect the ends of two reinforcing bars, and the reinforcing bars are mainly thread steel.

As is known in the art, the use of reinforced concrete is commonly required for various types of construction facilities above ground, underground or even underwater, without the use of the aforementioned thread steels. Prior to the pouring of concrete, a framework of rebars is constructed (a construction worker is accustomed to "tying bars"). If the original, i.e. traditional construction method is adopted, two deformed steel bars to be butted are welded and fixed to each other at the end parts in the process of constructing the steel reinforcement framework, and the method has the following self-evident defects: firstly, because welding equipment such as an electric welding machine needs power supply support, the welding equipment is critical to construction sites, for example, power supply must be led to the welding equipment at a steel bar butt joint station through a cable or a similar feed line, and the work of leading the power supply to the welding equipment is troublesome and has safety; secondly, welding needs to be operated by qualified personnel, so that the welding tool has the same criticality to operators; thirdly, the welding efficiency is relatively low, so that the progress of the project is influenced to a certain extent; fourthly, the operation intensity of welding workers is high, and the consistency of welding quality is difficult to guarantee, because the quality of welding quality is influenced by factors such as experience, responsibility and emotion of the welding workers besides environmental factors; fifthly, because the electric welding can not be utilized to butt-weld the ends of the reinforcing steel bars on the exposed non-shielding occasions in haze, particularly in rainy weather, the construction progress is also influenced except that the weather is selected.

The above disadvantages can be largely avoided by using the steel bar connector, and technical information related to the steel bar connector can be found in the published Chinese patent documents, which are briefly listed as "a steel bar connecting component" recommended by CN208830600U and "steel bar quick connector" provided by CN210032349U, because the two patent structures are split, namely, the steel bar quick connector consists of a first cylindrical sleeve, a second cylindrical sleeve and a sealing connecting cylinder, when in use, one end of one steel bar of two steel bars to be butted is inserted into a first cylindrical sleeve cavity of the first cylindrical sleeve with threads on the inner wall, one end of the other steel bar of the two steel bars is inserted into a second cylindrical sleeve cavity of the second cylindrical sleeve with threads on the inner wall, and the opposite ends of the first cylindrical sleeve and the second cylindrical sleeve are connected by the sealing connecting cylinder component, not only is the connection efficiency and effect affected, but also the operation is relatively troublesome.

Typically, CN204878162U discloses "a locking sleeve structure for quick connection of steel bars, which is disclosed in the specification 0011 to 0013 of the patent: although having the advantage of convenient processing of the inner thread taper sleeve and the outer thread taper sleeve, the overall structure is relatively complex and the operation is still troublesome due to the need to screw the inner thread taper sleeve and the outer thread taper sleeve into one unit.

In view of the above-mentioned prior art, there is a need for improvement, and for this reason, the applicant has made an advantageous search and design, and has developed the technical solutions described below.

Disclosure of Invention

The task of the utility model is to provide an existing be favorable to showing simplified structure, have the preparation of being convenient for again, still be favorable to improving the efficiency of construction and showing the operation intensity that alleviates the operation personnel, more and be favorable to the guarantee to be under construction as usual in precipitation weather, and then be of value to showing the reliability of promoting the connection from embracing solid steel bar connection device.

The utility model discloses a task is accomplished like this, a from embracing solid steel bar connection device, including a sleeve pipe base member, this sleeve pipe base member has a sleeve pipe base member chamber, one side in this sleeve pipe base member chamber is formed with one and opens with external communicating sleeve pipe base member chamber, this open shape in sleeve pipe base member chamber is the rectangle, and extend at the left end of sleeve pipe base member has a first toper pipeline section I, first toper pipeline section I of this first toper pipeline section I communicates with each other with sleeve pipe base member chamber, and extend at the right-hand member of sleeve pipe base member has a second toper pipeline section II, second toper pipeline section II of this second toper pipeline section II is same with sleeve pipe base member chamber, the one end of the major diameter of first toper pipeline section I and second toper pipeline section II is towards sleeve pipe base member chamber and the length of first toper pipeline section I and second toper pipeline section II equals and the size is the same; the sleeve basal body cavity partition plate is inserted in the middle of the sleeve basal body cavity and is matched with the open port of the sleeve basal body cavity, and the sleeve basal body cavity is divided into two equal parts at the left and the right by the sleeve basal body cavity partition plate; a first reinforcing bar tip is from embracing solid mechanism I and a second reinforcing bar tip from embracing solid mechanism II, and first reinforcing bar tip is from embracing solid mechanism I corresponding to the left position setting of sleeve pipe base member chamber division board is in the sleeve pipe base member chamber and in the first toper section chamber I and with first toper section chamber I constitute the slip pair, and second reinforcing bar tip is from embracing solid mechanism II and setting in sleeve pipe base member chamber and the position on the right side corresponding to sleeve pipe base member chamber division board in the second toper section chamber II and constitute the slip pair with second toper section chamber II.

In a specific embodiment of the present invention, a partition plate insertion flange hole is provided at the bottom of the sleeve base body cavity of the sleeve base body and at a position corresponding to the middle of the sleeve base body cavity, and a partition plate insertion flange is extended at the bottom of the sleeve base body cavity partition plate and at a position corresponding to the partition plate insertion flange hole, the partition plate insertion flange being inserted into the partition plate insertion flange hole.

In another specific embodiment of the present invention, a sleeve body cavity open cover plate is formed on the upper portion of the sleeve body cavity partition plate, the sleeve body cavity open cover plate is matched with the sleeve body cavity open cover of the sleeve body cavity, and the sleeve body cavity open cover plate is shielded by the upper portions of the first reinforcement end self-holding mechanism i and the second reinforcement end self-holding mechanism ii; the sleeve body cavity partition plate and the sleeve body cavity opening cover plate are integrally made of plastics.

In another specific embodiment of the present invention, each of the front side and the rear side of the cover plate with an open cavity of the sleeve substrate has a cover plate anti-loosening and tensioning strip extending downward, and the cover plate anti-loosening and tensioning strip is fitted with the inner wall of the open cavity of the sleeve substrate in the sleeve substrate cavity.

In another embodiment of the present invention, the partition plate insertion flange hole is a blind hole.

In yet another specific embodiment of the present invention, the first steel bar end self-holding mechanism i includes a first spring i and a set of first steel bar end holding blocks i, the set of first steel bar end holding blocks i are disposed in a first tapered pipe section cavity i of the first tapered pipe section i in a state of enclosing into a cone shape, and form a first steel bar end insertion hole i, the outer wall of the set of first steel bar end holding blocks i and the cavity wall of the first tapered pipe section cavity i form a sliding pair, the first spring i is disposed in the casing base cavity at a position corresponding to the left side of the casing base cavity separation plate, the left end of the first spring i abuts against the right end face of the set of first steel bar end holding blocks i, and the right end of the first spring i abuts against the left side face of the casing base cavity separation plate; the second steel bar end self-holding mechanism II comprises a second spring II and a group of second steel bar end holding blocks II, the group of second steel bar end holding blocks II are arranged in a second conical pipe section cavity II of the second conical pipe section II in a state of enclosing into a conical cylinder shape, and form a second steel bar end inserting hole II, the outer wall of the group of second steel bar end holding blocks II and the cavity wall of the second conical pipe section cavity II form a sliding pair, the second spring II is arranged in the sleeve base cavity at a position corresponding to the right side of the sleeve base cavity separation plate, the right end of the second spring II abuts against the left end face of the group of second steel bar end holding blocks II, and the left end of the second spring II abuts against the right side of the sleeve base cavity separation plate; the upper parts of the first spring I and the second spring II are shielded and protected by the cover plate of the open cavity of the sleeve base body.

In a more specific embodiment of the present invention, the first and second reinforcing bar end insertion holes i and ii are conical holes, and one end of the conical hole having a large diameter faces the sleeve base cavity.

In yet another specific embodiment of the present invention, the shape and number of the first reinforcing bar end holding block i are the same as the second reinforcing bar end holding block ii, and the first holding block thread i with the same position is formed on the inner wall of the first reinforcing bar end holding block i, and the second holding block thread ii with the same position is formed on the inner wall of the second reinforcing bar end holding block ii.

In a more specific embodiment of the present invention, the cross-sectional shapes of the first reinforcing bar end holding block i and the second reinforcing bar end holding block ii are circular arc and have two, three, four, five or six pieces.

In yet another specific embodiment of the present invention, a pair of first reinforcing ribs i are formed on the outer wall of the first tapered pipe section i and along the length direction of the first tapered pipe section i, the pair of first reinforcing ribs i being spaced apart from each other by 180 ° around the circumferential direction of the first tapered pipe section i; a pair of second reinforcing ribs ii are formed on the outer wall of the second tapered section ii and along the length direction of the second tapered section ii, and the pair of second reinforcing ribs ii are spaced 180 ° from each other around the circumferential direction of the second tapered section ii.

The utility model provides one of the technical effects of the technical proposal, because the sleeve basal body is an integral structure, and because a sleeve basal body cavity division plate is inserted in the middle of the sleeve basal body cavity and the first reinforcing steel bar end self-holding fixing mechanism I is arranged in the sleeve basal body cavity and the first conical pipe section cavity I at the left position corresponding to the sleeve basal body cavity division plate, and the second reinforcing steel bar end self-holding fixing mechanism II is arranged in the sleeve basal body cavity and the second conical pipe section cavity II at the right position corresponding to the sleeve basal body cavity division plate, thereby not only being beneficial to obviously simplifying the structure, but also being beneficial to manufacturing; secondly, the end parts of the inserted first reinforcing steel bar and the second reinforcing steel bar can be reliably controlled by the first reinforcing steel bar end part self-holding mechanism I and the second reinforcing steel bar end part self-holding mechanism II, so that the situation of quitting is avoided, the construction efficiency can be obviously improved, the operation intensity of constructors is reduced, and the bare-handed operation can be realized; thirdly, the self-holding mechanism I at the end part of the first steel bar and the self-holding mechanism II at the end part of the second steel bar can play an extremely clamping role on the end part of the inserted steel bar, so that the requirement on the reliability of connection can be met; and fourthly, the construction method is not influenced by weather such as precipitation when in use, so that the construction method is beneficial to guaranteeing the progress of the project.

Drawings

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

Fig. 2 is a schematic diagram of the insertion and connection of a first steel bar I and a second steel bar II with a first steel bar end part self-holding fixing mechanism I and a second steel bar end part self-holding fixing mechanism II respectively.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of the drawing being described, and thus, should not be construed as particularly limiting the technical solution provided by the present invention.

Referring to fig. 1, there is shown a cannula base 1, the cannula base 1 having a cannula base cavity 11, one side of the sleeve basal body cavity 11 is formed with a sleeve basal body cavity opening 111 communicated with the outside, the cannula base cavity opening 111 is rectangular in shape (substantially square in this embodiment), and a first tapered tube section i 12 extends at the left end of the cannula base 1, the first conical pipe section cavity I121 of the first conical pipe section I12 is communicated with the casing base body cavity 11, a second conical pipe section II 13 extends from the right end of the casing base body 1, the second taper pipe section cavity II 131 of the second taper pipe section II 13 is also communicated with the casing base cavity 11, the large-diameter ends, namely the large head ends, of the first taper pipe section I12 and the second taper pipe section II 13 face the casing base cavity 11, and the first taper pipe section I12 and the second taper pipe section II 13 are equal in length and are equal in size, such as the diameters; a sleeve body cavity partition plate 2 is shown, the sleeve body cavity partition plate 2 is inserted in the middle of the sleeve body cavity 11, that is, in the middle of the sleeve body cavity 11 in the width direction, and the upper part of the sleeve body cavity partition plate 2 is in cover fit with the sleeve body cavity opening 111, and the sleeve body cavity 11 is divided into two parts by the sleeve body cavity partition plate 2; a first steel bar end self-holding mechanism i 3 and a second steel bar end self-holding mechanism ii 4 are shown, the first steel bar end self-holding mechanism i 3 is arranged in the casing base cavity 11 and the first tapered pipe section cavity i 121 at a position corresponding to the left side of the casing base cavity separation plate 2 and constitutes a sliding pair with the first tapered pipe section cavity i 121, and the second steel bar end self-holding mechanism ii 4 is arranged in the casing base cavity 11 and the second tapered pipe section cavity ii 131 at a position corresponding to the right side of the casing base cavity separation plate 2 and constitutes a sliding pair with the second tapered pipe section cavity ii 131.

The first tapered pipe section I12 and the second tapered pipe section II 13 are integrally formed with the casing base body 1, and are preferably formed by casting or casting, but may be formed by a machining process or other similar methods.

As shown in fig. 1, a partition insertion flange hole 112 is formed at the bottom of the ferrule base cavity 11 of the ferrule base 1 and at a position corresponding to the middle of the ferrule base cavity 11, and a partition insertion flange 21 extends at the bottom of the ferrule base cavity partition 2 and at a position corresponding to the partition insertion flange hole 112, the partition insertion flange 21 being inserted into the partition insertion flange hole 112, thereby proving that the applicant mentioned above inserts the ferrule base cavity partition 2 at the middle of the ferrule base cavity 11.

A sleeve base cavity open cover plate 22 is formed on the upper part of the sleeve base cavity partition plate 2, the sleeve base cavity open cover plate 22 is in cover fit with the sleeve base cavity open 111 of the sleeve base cavity 11, and the sleeve base cavity open cover plate 22 is used for shielding the upper parts of the first reinforcing steel bar end self-holding mechanism I3 and the second reinforcing steel bar end self-holding mechanism II 4 corresponding to the first reinforcing steel bar end. In the present embodiment, the aforementioned sleeve base cavity divider plate 2 and sleeve base cavity open cover plate 22 are made of plastic or other equivalent materials to form a unitary structure.

Preferably, a cover plate anti-loosening and tensioning strip 221 extends downwards from each of the front side and the rear side of the sleeve base cavity opening cover plate 22, and the cover plate anti-loosening and tensioning strip 221 is tightly embedded with the inner wall of the sleeve base cavity opening 111 of the sleeve base cavity 11.

In the present embodiment, the partition insertion flange hole 112 is a blind hole, the partition insertion flange hole 112 may be a rectangular hole, or a circular hole or other equivalent holes, and the shape of the partition insertion flange 21 is adapted to the shape of the partition insertion flange hole 112.

Continuing to refer to fig. 1, the first rebar end self-holding mechanism i 3 includes a first spring i 31 and a set of first rebar end holding blocks i 32, the set of first rebar end holding blocks i 32 are disposed in the first tapered pipe section cavity i 121 of the first tapered pipe section i 12 in a state of enclosing into a tapered cylinder, and are formed with a first rebar end insertion hole i 321, the outer wall of the set of first rebar end holding blocks i 32 and the cavity wall of the first tapered pipe section cavity i 121 form a sliding pair, the first spring i 31 is disposed in the casing base cavity 11 at a position corresponding to the left side of the casing base cavity partition plate 2, the left end of the first spring i 31 abuts against the end face of the set of first rebar end holding blocks i 32, and the right end of the first spring i 31 abuts against the left side face of the casing base cavity partition plate 2.

The second steel bar end self-holding mechanism II 4 comprises a second spring II 41 and a group of second steel bar end holding blocks II 42, the group of second steel bar end holding blocks II 42 are arranged in a second conical pipe section cavity II 131 of the second conical pipe section II 13 in a conical cylinder shape surrounded by each other and form a second steel bar end insertion hole II 421, the outer wall of the group of second steel bar end holding blocks II 42 and the cavity wall of the second conical pipe section cavity II 131 form a sliding pair, the second spring II 41 is arranged in the casing base cavity 11 at a position corresponding to the right side of the casing base cavity partition plate 2, the right end of the second spring II 41 abuts against the left end face of the group of second steel bar end holding blocks II 42, and the left end of the second spring II 41 abuts against the right side of the casing base cavity partition plate 2; the upper parts of the first spring I31 and the second spring II 41 are shielded by the sleeve base cavity open cover plate 22.

As described above, the aforementioned cannula base body lumen 11 is divided into two, that is, divided into two equally on the left and right, due to the provision of the cannula base body lumen partition plate 2, so that it can be determined without any problem: the first spring I31 of the structural system of the first steel bar end self-holding mechanism I3 is positioned in the left casing pipe base cavity 11, and the second spring II 41 of the structural system of the second steel bar end self-holding mechanism II 4 is positioned in the right casing pipe base cavity 11; because the part of the first reinforcing steel bar end self-holding mechanism I3 and the part of the second reinforcing steel bar end self-holding mechanism II 4 are arranged from the sleeve base cavity opening 111, the sleeve base cavity opening 111 can also be called as a sleeve base cavity mounting opening. After the first steel bar end part is completely assembled from a first spring I31 and a group of first steel bar end part holding blocks I32 of a structural system of a holding mechanism I3 by means of a sleeve base cavity opening 111, and the second steel bar end part is completely assembled from a second spring II 41 and a group of second steel bar end part holding blocks II 42 of a structural system of a holding mechanism II 4, a sleeve base cavity separation plate 2 is aligned between the first spring I31 and the second spring II 41 and inserted, and the sleeve base cavity opening cover plate 22 plays a role in plugging the sleeve base cavity opening 111 and shielding the first spring I31 and the second spring II 41.

As shown in fig. 1, the first bar end insertion hole i 321 and the second bar end insertion hole ii 421 are conical holes, and one end of the conical hole with a larger diameter, i.e., a larger end, faces the casing base cavity 11, that is, the ends of the first bar end insertion hole i 321 and the second bar end insertion hole ii 421 with a larger diameter are opposite to each other.

In this embodiment, the shape and number of the first reinforcing bar end holding blocks i 32 are the same as those of the second reinforcing bar end holding blocks ii 42, and the inner walls of the first reinforcing bar end holding blocks i 32 are respectively formed with first holding block threads i 322 with the same position, and the inner walls of the second reinforcing bar end holding blocks ii 42 are respectively formed with second holding block threads ii 422 with the same position. Since the first holding block thread I322 and the second holding block thread II 422 are engaged with the steel bar, i.e. the deformed steel bar, in the use state, they are respectively called as a first holding block clamping tooth and a second holding block clamping tooth.

In this embodiment, the cross-sectional shapes of the first reinforcing bar end holding block i 32 and the second reinforcing bar end holding block ii 42 are arc-shaped (or fan-shaped), and there are three blocks each, but if four, five or six blocks with the same shape and the same size are used, they should be regarded as the same technical means and still belong to the technical content scope of the present invention.

As is known in the art, the nominal diameter of the deformed steel bar is 6, 8, 10, 12, 16, 20, 25, 32, 40 and 50mm, and the utility model discloses the tip butt joint of the deformed steel bar of specification more than 16mm is more suitable. Along with the deformed steel bar is along with the diameter change by first reinforcing bar I5 and second reinforcing bar II 6 that fig. 2 is shown promptly, the utility model discloses a adaptability change is also made to the specification to satisfy the butt joint requirement of the tip of the deformed steel bar of different diameters.

In order to ensure the strength of the present invention, it is preferable that a pair of first reinforcing ribs i 122 is formed on the outer wall of the first tapered pipe section i 12 and along the length direction of the first tapered pipe section i 12, and the pair of first reinforcing ribs i 122 are spaced apart from each other by 180 ° around the circumferential direction of the first tapered pipe section i 12; a pair of second reinforcing ribs ii 132 are formed on the outer wall of the second tapered section ii 13 and along the length of the second tapered section ii 13, and the pair of second reinforcing ribs ii 132 are spaced 180 ° from each other around the circumferential direction of the second tapered section ii 13.

Referring to fig. 2 in conjunction with fig. 1, fig. 2 shows a first steel bar i 5 and a second steel bar ii 6, which have already been mentioned above, wherein the first steel bar i 5 and the second steel bar ii 6 are both thread steels with the same specification. During construction in a construction site, the end of the first steel bar I5 is inserted into the first steel bar end insertion hole I321 formed by the structural system of the first conical pipe section cavity I121 shown in FIG. 1 and enclosed by the group of first steel bar end holding blocks I32, because the small-diameter end of the first steel bar end insertion hole I321 faces outwards, i.e. faces to the left, and the aperture is slightly smaller than the diameter of the first steel bar I5, for example, the diameter of the first steel bar I5 is 16mm, and the small-diameter end of the first steel bar end holding block I32 has an inner diameter of 15mm, so that when the first steel bar I5 is inserted, the left end face of the group of first steel bar end holding blocks I32 made of metal material is squeezed and pushed, and the first steel bar I31 is forced to be compressed, i.e. displaced to the right under the action force against the first spring I31, at this time, the inner diameter of the left end of the first reinforcing steel bar end insertion hole I321 is expanded due to the outward expansion of the group of first reinforcing steel bar end holding blocks I32, the end of the first reinforcing steel bar I5 is smoothly inserted into the first reinforcing steel bar end insertion hole I321, passes through the first spring central hole of the first spring I31 after passing through the first reinforcing steel bar end insertion hole I321, and is blocked by the sleeve base cavity partition plate 2, and at this time, the first reinforcing steel bar I5 is inserted into the position. After the first steel bar I5 is inserted in place, the constructor slightly applies pulling force to the first steel bar I5 in the direction deviating from the utility model, namely towards the outside, when a pulling force is applied, the group of first reinforcing steel bar end holding blocks I32 slightly displace along with the first reinforcing steel bars I5 towards the direction departing from the casing base cavity 11, namely, towards the direction departing from the casing base cavity partition plate 2, however, because the group of first reinforcing steel bar end holding blocks I32 forms a cone frustum shape in an enclosing way and one end of a small diameter, namely a small head, faces outwards, therefore, when pulling force is applied, the group of first steel bar end holding blocks I32 are pulled more and more tightly, so that the first holding block threads I322 reliably clamp the end of the first steel bar I5 with the effect like a pliers, the first steel bar I5 cannot move and bounce, and the group of first steel bar end holding blocks I32 cannot break away, so that the plug-in connection of the end of the first steel bar I5 is realized in a self-holding and fixing mode. The operation process of inserting the second steel bar II 6 into the end part of the second steel bar from the opening of the second conical pipe section cavity II 131 through the self-holding and fixing mechanism II 4 is the same as that described above for the first steel bar I5, and therefore, the description is omitted.

First reinforcing bar I5 and second reinforcing bar II 6 pass through the utility model discloses tensile strength after the connection can satisfy the requirement of the national standard such as GB1499.2-2007 completely through experimental, if be greater than 540 MPa's that the standard requires that the stretching resistance is required far away.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. The self-holding reinforcing steel bar connecting device is characterized by comprising a sleeve base body (1), wherein the sleeve base body (1) is provided with a sleeve base body cavity (11), one side of the sleeve base body cavity (11) is provided with a sleeve base body cavity opening (111) communicated with the outside, the sleeve base body cavity opening (111) is rectangular, a first conical pipe section I (12) extends from the left end of the sleeve base body (1), a first conical pipe section I (121) of the first conical pipe section I (12) is communicated with the sleeve base body cavity (11), a second conical pipe section II (13) extends from the right end of the sleeve base body (1), a second conical pipe section II (131) of the second conical pipe section II (13) is also communicated with the sleeve base body cavity (11), and the large-diameter ends of the first conical pipe section I (12) and the second conical pipe section II (13) face the sleeve base body cavity (11) and the first conical pipe section (12) and the second conical pipe section II (13) face the sleeve base body cavity (11) 13) Are equal in length and same in size; the sleeve basal body cavity partition plate (2) is inserted in the middle of the sleeve basal body cavity (11) and is in cover fit with the sleeve basal body cavity opening (111), and the sleeve basal body cavity (11) is divided into two equal parts at the left and the right by the sleeve basal body cavity partition plate (2); a first reinforcing bar tip is from embracing solid mechanism I (3) and a second reinforcing bar tip and embracing solid mechanism II (4), and first reinforcing bar tip is embracing solid mechanism I (3) from embracing and is corresponding to the left position setting of sleeve pipe base member chamber division board (2) is in sleeve pipe base member chamber (11) and in first toper pipe section chamber I (121) and constitute the slip pair with first toper pipe section chamber I (121), and second reinforcing bar tip is embracing solid mechanism II (4) from embracing and is setting up in sleeve pipe base member chamber (11) and the position on the right side corresponding to sleeve pipe base member chamber division board (2) second toper pipe section chamber II (131) in and constitute the slip pair with second toper pipe section chamber II (131).

2. The self-embracing reinforcing bar connecting device according to claim 1, wherein a partition plate insertion flange hole (112) is formed at the bottom of the sleeve body cavity (11) of the sleeve body (1) at a position corresponding to the middle of the sleeve body cavity (11), and a partition plate insertion flange (21) extends at the bottom of the sleeve body cavity partition plate (2) at a position corresponding to the partition plate insertion flange hole (112), the partition plate insertion flange (21) being inserted into the partition plate insertion flange hole (112).

3. The self-holding reinforcing steel bar connecting device according to claim 1, wherein a sleeve base cavity open cover plate (22) is formed on the upper portion of the sleeve base cavity partition plate (2), the sleeve base cavity open cover plate (22) is matched with the sleeve base cavity open (111) of the sleeve base cavity (11), and the sleeve base cavity open cover plate (22) is used for shielding the upper portions of the first reinforcing steel bar end self-holding mechanism I (3) and the second reinforcing steel bar end self-holding mechanism II (4) corresponding to the first reinforcing steel bar end; the sleeve body cavity partition plate (2) and the sleeve body cavity opening cover plate (22) are integrally made of plastics.

4. The self-holding reinforcing steel bar connecting device according to claim 3, wherein a cover plate anti-loosening tensioning strip (221) extends downwards from each of the front side and the rear side of the cover plate (22) of the sleeve base cavity opening, and the cover plate anti-loosening tensioning strip (221) is matched with the inner wall of the sleeve base cavity opening (111) of the sleeve base cavity (11).

5. The self-embracing rebar junction device of claim 2, wherein the divider panel insert flange holes (112) are blind.

6. The self-holding reinforcing steel bar connecting device according to claim 3, wherein the first reinforcing steel bar end self-holding mechanism I (3) comprises a first spring I (31) and a set of first reinforcing steel bar end holding blocks I (32), the set of first reinforcing steel bar end holding blocks I (32) are arranged in the first tapered pipe section cavity I (121) of the first tapered pipe section I (12) in a state of enclosing into a tapered cylinder and are formed with a first reinforcing steel bar end insertion hole I (321), the outer wall of the set of first reinforcing steel bar end holding blocks I (32) and the cavity wall of the first tapered pipe section cavity I (121) form a sliding pair, the first spring I (31) is arranged in the casing base cavity (11) at a position corresponding to the left side of the casing base cavity partition plate (2), the left end of the first spring I (31) abuts against the right end face of the set of first reinforcing steel bar end holding blocks I (32), the right end of the first spring I (31) abuts against the left side face of the sleeve base cavity partition plate (2); the second steel bar end self-holding mechanism II (4) comprises a second spring II (41) and a group of second steel bar end holding blocks II (42), the group of second reinforcing steel bar end holding blocks II (42) are arranged in a second conical pipe section cavity II (131) of the second conical pipe section II (13) in a mutually enclosed conical cylinder shape and form a second reinforcing steel bar end insertion hole II (421), the outer wall of the second reinforcing steel bar end holding block II (42) and the cavity wall of the second conical pipe section cavity II (131) form a sliding pair, a second spring II (41) is arranged in the sleeve base cavity (11) at a position corresponding to the right side of the sleeve base cavity partition plate (2), the right end of the second spring II (41) is abutted against the left end face of the second reinforcing steel bar end holding block II (42), the left end of the second spring II (41) abuts against the right side face of the sleeve base cavity partition plate (2); the upper parts of the first spring I (31) and the second spring II (41) are shielded by the sleeve base body cavity open cover plate (22).

7. The self-holding reinforcing steel bar connecting device according to claim 6, wherein the first reinforcing steel bar end insertion hole I (321) and the second reinforcing steel bar end insertion hole II (421) are conical holes, and one end of the conical hole with a large diameter faces the casing base cavity (11).

8. The self-holding reinforcing steel bar connecting device according to claim 6, wherein the shape and number of the first reinforcing steel bar end holding blocks I (32) are the same as those of the second reinforcing steel bar end holding blocks II (42), the inner walls of the first reinforcing steel bar end holding blocks I (32) are respectively provided with first holding block threads I (322) with the same position, and the inner walls of the second reinforcing steel bar end holding blocks II (42) are respectively provided with second holding block threads II (422) with the same position.

9. The self-holding reinforcing steel bar connecting device according to claim 6 or 8, wherein the cross-sectional shapes of the first reinforcing steel bar end holding block I (32) and the second reinforcing steel bar end holding block II (42) are arc-shaped and respectively have two, three, four, five or six.

10. The self-anchoring reinforcing bar coupler according to claim 1, wherein a pair of first reinforcing ribs I (122) are formed on the outer wall of the first tapered pipe section I (12) and along the length direction of the first tapered pipe section I (12), the pair of first reinforcing ribs I (122) being spaced 180 ° apart from each other around the circumferential direction of the first tapered pipe section I (12); a pair of second reinforcing ribs II (132) are formed on the outer wall of the second tapered pipe section II (13) and along the length direction of the second tapered pipe section II (13), and the pair of second reinforcing ribs II (132) are spaced apart from each other by 180 DEG around the circumferential direction of the second tapered pipe section II (13).