A self-locking connection device and connection method thereof

Abstract

The present invention relates to a self-locking connection device and a connection method thereof, comprising a first connection seat, one side of which has a first opening, and a first installation space therein; a second connection seat, one side of which has a second opening arranged opposite to the first opening, and a second installation space therein; and a connection mechanism, which comprises a connection shaft and a spiral portion; the first end of the connection shaft is inserted into the first installation space; the spiral portion can be rotated on the other end of the connection shaft, and can be reversely spirally screwed into the second installation space, and release the reverse spiral force to lock after entering the second installation space; wherein the second opening width is less than the maximum width value of the spiral portion. The spiral portion is reversely spirally screwed into the second installation space, and the reverse spiral force couple is released to lock after entering the second installation space, so as to realize the connection between the first connection seat and the second connection seat. This solves the technical problem of complex and low efficiency of prefabricated plate assembly in the prior art. The present invention has a simple structure, high assembly efficiency, and high connection reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of connection devices between prefabricated assembled panels, and more particularly to a self-locking connection device and a connection method thereof. Background Art

[0002] Compared with traditional on-site construction, prefabricated buildings have many advantages, such as factory-produced components, no seasonal impact, better control of component quality, greatly shortened on-site construction period, reduced impact on the surrounding environment, etc. Therefore, it has become the mainstream development direction of future buildings. The plate body is an important part of the building. At present, the connection of prefabricated plates is mainly connected by steel bar connection and then poured concrete. This method still requires on-site construction and maintenance, with a long construction period and low work efficiency.

[0003] Therefore, how to provide a device for connecting plates conveniently and quickly is a problem that those skilled in the art need to solve urgently. Summary of the invention

[0004] In view of this, the present invention provides a self-locking connection device, which solves the technical problem of low connection efficiency of prefabricated panels in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A self-locking connection device, comprising:

[0007] A first connecting seat, wherein one side of the first connecting seat has a first opening and an interior thereof has a first installation space;

[0008] A second connecting seat, wherein one side of the second connecting seat has a second opening arranged opposite to the first opening, and the interior of the second connecting seat has a second installation space;

[0009] And a connecting mechanism, the connecting mechanism includes a connecting shaft and a spiral portion; the first end of the connecting shaft is inserted into the first installation space; the spiral portion can be rotated on the other end of the connecting shaft, and can be reversely spirally screwed into the second installation space, and after entering the second installation space, the reverse spiral force couple lock is released; wherein the second opening width is smaller than the maximum width value of the spiral portion.

[0010] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a self-locking connection device, which connects the first connection seat with the second connection seat by inserting the first end of the connection mechanism into the first connection seat, and the spiral part is reversely spiraled into the second installation space, and the reverse spiral force couple is released after entering the second installation space. This solves the technical problems of complex assembly and low efficiency of prefabricated panels in the prior art. The present invention has a simple structure, high assembly efficiency, and high connection reliability.

[0011] Preferably, the connecting shaft comprises an insertion section, a first stop shoulder, a second stop shoulder, a third stop shoulder and a mounting section which are connected in sequence;

[0012] The outer wall of the insertion section is provided with a thread structure which cooperates with the first installation space for installation;

[0013] The diameter of the first shoulder is greater than the width of the second opening; the diameters of the first shoulder, the second shoulder and the third shoulder decrease in sequence;

[0014] The spiral part is installed on the installation section and is rotatably connected with the spiral part.

[0015] The width value in the present invention generally refers to the maximum dimension value on the cross section of the overall component. For example, the diameter value of the second shoulder is greater than the width value of the second opening, that is, the diameter of the second shoulder is greater than the maximum dimension of the cross section corresponding to the second opening. If the opening is circular, it is the diameter; if the opening is rectangular, it is the length value; if it is square, it is the single-side dimension.

[0016] Preferably, the spiral portion comprises: a spiral body and a torsion spring;

[0017] The spiral body comprises a sleeve and two spiral leaves symmetrically arranged on the outer wall of the sleeve, and the two spiral leaves form a spiral wing with a narrow head and a wide tail;

[0018] The torsion spring is sleeved on the installation section, one end of the torsion spring abuts against the third shoulder and is fixed in the sleeve.

[0019] The first stop shoulder limits the length of the connecting shaft entering the second installation space, ensuring the length of the spiral body entering, thereby ensuring the reliability of self-locking; the second stop shoulder is used to limit the installation position of the spiral part.

[0020] The specific parameters of the torsion spring are selected according to the actual usage.

[0021] The sleeve is rotatable with respect to the connecting shaft with the torsion spring, and the sleeve and the spiral wing can be integrally formed, or manufactured separately and then welded or screwed together.

[0022] Optionally, the tail of each spiral blade has an inclined surface, which can achieve a locking connection with the inner wall of the second opening when the force couple is released to self-lock.

[0023] The present invention provides a self-locking connection device, which also includes a locking cap, a compression cap inserted into the sleeve, and an internal thread is provided in the locking cap, and an external thread matching the internal thread is provided on the outer wall at the top of the installation section. The locking cap is fixed to the front end of the connecting shaft, and is used to limit the sleeve to prevent the sleeve from rotating away from the connecting shaft, thereby ensuring that when the spiral wing rotates, the torsion spring forms a sufficiently large reverse force couple, and ensures the firmness of the connection after release.

[0024] Preferably, the head of the clamping cap is a conical structure. This solution is beneficial for guiding the connecting mechanism when it enters the second opening, which is beneficial for the entry of the connecting mechanism.

[0025] Preferably, a first limiting groove is provided on the tail of the sleeve, a second limiting groove is provided on the tail of the clamping cap, the first support rod of the torsion spring is fixed in the first limiting groove, and the second support rod is fixed in the second limiting groove. The sizes of the first limiting groove and the second limiting groove are adapted to the selected torsion spring specifications to ensure that the torsion spring forms a reverse force couple during the twisting process.

[0026] Preferably, the second opening width is greater than the maximum width of the clamping cap, ensuring that the front section of the connecting mechanism can smoothly enter the second installation space.

[0027] Preferably, the connecting mechanism is made of steel or plastic, wherein the plastic is selected according to the specific usage and the corresponding strength requirement.

[0028] The present invention also provides a method for realizing the connection of the above-mentioned self-locking connection device, comprising the following steps:

[0029] S1, fixing the first connecting seat in the first plate body, and fixing the second connecting seat in the second plate body;

[0030] S2, inserting the first end of the connecting mechanism into the first installation space;

[0031] S3, align the spiral part with the second installation space, and use external force to make it spiral into the second installation space in the reverse direction. After the spiral part enters the second installation space, the reverse spiral force is released and it is locked in the second installation space, thereby connecting the first plate body and the second body.

[0032] Preferably, the above method can realize horizontal sequential connection and vertical angle connection of the first plate body and the second plate body.

[0033] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a connection method for a self-locking connection device, by inserting the first end of the connection mechanism into the first connection seat (fixed in the first plate body), the spiral part reversely spirals into the second installation space (set in the second plate body), and after entering the second installation space, the reverse spiral force couple is released to lock, thereby connecting the first connection seat and the second connection seat. This solves the technical problems of complex assembly and low efficiency of prefabricated panels in the prior art. The present invention has a simple structure, high assembly efficiency, and high connection reliability.

[0034] The present invention specifically drives the torsion spring to rotate through the spiral wing. Since one rod of the torsion spring is fixed on the sleeve, and the other rod is fixed to the shaft through a clamping cap, when an external force pushes the connecting shaft into the second space, the spiral wing drives the torsion spring, and the torsion spring generates a reverse force couple. When the spiral wing enters the second space completely, it is not restricted by the second opening and releases the force couple. The wing tail of the spiral wing and the inner wall of the second opening are self-locking, thereby fixing the first plate body and the second plate body, and can realize horizontal sequential connection and vertical angle connection, and has strong practicality.

[0035] In the above method of the present invention, according to different products, the first connecting seat and the second connecting seat can adopt different ways of fixing in the prefabricated plate body, such as embedding, welding, bolts, etc., but they are required to be firmly fixed. For example, before embedding, the first end of the connecting mechanism is screwed into the first installation space on site, and then installed into the second connecting seat by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 The accompanying drawing is a structural schematic diagram of a self-locking connection device provided by the present invention;

[0038] Figure 2 The accompanying drawing is an exploded view of a self-locking connection device provided by the present invention;

[0039] Figure 3 The accompanying drawing is a schematic structural diagram of a clamping cap of a self-locking coupling device provided by the present invention;

[0040] Figure 4 The accompanying drawing is a half-section view of a self-locking coupling device provided by the present invention;

[0041] Figure 5 The accompanying drawing is a structural schematic diagram of a sequential connection of a self-locking coupling device provided by the present invention;

[0042] Figure 6 The accompanying drawing is a structural schematic diagram of an angle connection of a self-locking connection device provided by the present invention. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The embodiment of the present invention discloses a self-locking connection device, which solves the technical problem of low connection efficiency of prefabricated panels in the prior art.

[0045] See attached Figure 1-6 The present invention provides a self-locking connection device, comprising:

[0046] A first connecting seat 1, wherein one side of the first connecting seat 1 has a first opening and an interior thereof has a first installation space;

[0047] A second connecting seat 3, wherein one side of the second connecting seat 3 has a second opening arranged opposite to the first opening, and the interior of the second connecting seat has a second installation space;

[0048] And a connecting mechanism 2, the connecting mechanism 2 includes a connecting shaft 21 and a spiral portion 22; the first end of the connecting shaft 21 is inserted into the first installation space; the spiral portion 22 can be rotated on the other end of the connecting shaft 21, and can be reversely spirally screwed into the second installation space, and after entering the second installation space, the reverse spiral force couple lock is released; wherein the second opening width is smaller than the maximum width value of the spiral portion 22.

[0049] The present invention discloses a self-locking connection device, which connects the first connection seat with the second connection seat by inserting the first end of the connection mechanism into the first connection seat, and the spiral part is reversely spirally screwed into the second installation space, and the reverse spiral force couple is released after entering the second installation space to lock. This solves the technical problems of complex assembly and low efficiency of prefabricated panels in the prior art. The present invention has a simple structure, high assembly efficiency, and high connection reliability.

[0050] For details, see Appendix Figure 2 The connecting shaft 21 includes an inserting section 211, a first stop shoulder 212, a second stop shoulder 213, a third stop shoulder 214 and a mounting section 215 which are connected in sequence;

[0051] The outer wall of the insertion section 211 has a thread structure that cooperates with the first installation space;

[0052] The diameter of the first shoulder 212 is greater than the width of the second opening; the diameters of the first shoulder 212, the second shoulder and the third shoulder 214 decrease in sequence;

[0053] The spiral portion 22 is mounted on the mounting section 215 , and is rotatably connected to the spiral portion 22 .

[0054] The width value in the present invention generally refers to the maximum dimension value on the cross section of the overall component. For example, the diameter value of the second shoulder is greater than the width value of the second opening, that is, the diameter of the second shoulder is greater than the maximum dimension of the cross section corresponding to the second opening. If the opening is circular, it is the diameter; if the opening is rectangular, it is the length value; if it is square, it is the single-side dimension.

[0055] Advantageously, the spiral portion 22 comprises: a spiral body 221 and a torsion spring 222;

[0056] The spiral body 221 includes a sleeve and two spiral leaves symmetrically arranged on the outer wall of the sleeve, and the two spiral leaves form a spiral wing with a narrow head and a wide tail;

[0057] The torsion spring 222 is sleeved on the mounting section 215 , one end of which abuts against the third stop shoulder 214 and is fixed in the sleeve.

[0058] The first stop shoulder limits the length of the connecting shaft entering the second installation space, ensuring the length of the spiral body entering, thereby ensuring the reliability of self-locking; the second stop shoulder is used to limit the installation position of the spiral part.

[0059] The specific parameters of the torsion spring are selected according to the actual usage.

[0060] The sleeve is rotatable with respect to the connecting shaft with the torsion spring, and the sleeve and the spiral wing can be integrally formed, or manufactured separately and then welded or screwed together.

[0061] Optionally, the tail of each spiral blade has an inclined surface, which can achieve a locking connection with the inner wall of the second opening when the force couple is released to self-lock.

[0062] See attached Figure 2 , and also includes a locking cap 23, which is inserted into the sleeve; and the locking cap 23 has an internal thread, and the outer wall at the top of the mounting section 215 has an external thread that matches the internal thread. The locking cap is fixed to the front end of the connecting shaft, and is used to limit the sleeve to prevent the sleeve from rotating away from the connecting shaft, thereby ensuring that when the spiral wing rotates, the torsion spring forms a sufficiently large reverse force couple to ensure the firmness of the connection after release.

[0063] More advantageously, the head of the clamping cap 23 is a conical structure; this solution is advantageous in that it plays a guiding role when the connecting mechanism enters the second opening, thus facilitating the entry of the connecting mechanism.

[0064] The sleeve tail is provided with a first limiting groove 2211, the clamping cap 23 tail is provided with a second limiting groove 231, the first support rod of the torsion spring 222 is fixed in the first limiting groove 2211, and the second support rod is fixed in the second limiting groove 231. The sizes of the first limiting groove and the second limiting groove are adapted to the selected torsion spring specifications, ensuring that the torsion spring forms a reverse force couple during the twisting process.

[0065] The second opening width is greater than the maximum width of the clamping cap 23, thereby ensuring that the front section of the connecting mechanism can smoothly enter the second installation space.

[0066] In the above embodiments, the connecting mechanism 2 is made of steel or plastic, wherein the plastic is selected according to the specific usage and the material corresponding to the strength requirement is selected.

[0067] The present invention also provides a method for realizing the connection of the above-mentioned self-locking connection device, comprising the following steps:

[0068] S1, fix the first connecting seat in the first plate body 4, and fix the second connecting seat in the second plate body 5;

[0069] S2, inserting the first end of the connecting mechanism into the first installation space;

[0070] S3, align the spiral part with the second installation space, and use external force to make it spiral into the second installation space in the reverse direction. After the spiral part enters the second installation space, the reverse spiral force is released and it is locked in the second installation space, thereby connecting the first plate body 4 and the second body.

[0071] The above method can realize the horizontal sequential connection and the vertical angle connection of the first plate body 4 and the second plate body 5.

[0072] The present invention discloses a connection method of a self-locking connection device, wherein the first end of the connection mechanism is inserted into the first connection seat (fixed in the first plate body 4), the spiral part is reversely spirally screwed into the second installation space (set in the second plate body 5), and the reverse spiral force is released after entering the second installation space to lock, thereby connecting the first connection seat with the second connection seat. This solves the technical problems of complex assembly and low efficiency of prefabricated plate bodies in the prior art. The present invention has a simple structure, high assembly efficiency, and high connection reliability.

[0073] The present invention specifically drives the torsion spring to rotate through the spiral wing. Since one rod of the torsion spring is fixed on the sleeve, and the other rod is fixed to the shaft through a clamping cap, when an external force pushes the connecting shaft into the second space, the spiral wing drives the torsion spring, and the torsion spring generates a reverse force couple. When the spiral wing enters the second space completely, it is not restricted by the second opening and releases the force couple. The tail of the spiral wing and the inner wall of the second opening are self-locked, thereby fixing the first plate body 4 and the second plate body 5, and can realize horizontal sequential connection and vertical angle connection, with strong practicality.

[0074] In the above method of the present invention, according to different products, the first connecting seat and the second connecting seat can adopt different ways of fixing in the prefabricated plate body, such as embedding, welding, bolts, etc., but they are required to be firmly fixed. For example, before embedding, the first end of the connecting mechanism is screwed into the first installation space on site, and then installed into the second connecting seat by external force.

[0075] Specific embodiments:

[0076] The connecting shaft is fixed to one end of the first plate body 4 through the first connecting seat, the axis of the connecting shaft is perpendicular to the end face of the plate body, and the outer end face of the spiral wing is in the vertical direction. When connecting the first plate body 4 and the second body, the sleeve (and the spiral wing) is inserted into the connecting seat of the second plate body 5. As the sleeve is pushed forward, the spiral wing cross section is always in the vertical direction, so the sleeve will rotate. When the sleeve passes through the second installation space, the sleeve returns to its original position (rotates 90 degrees) under the action of the torsion spring, and the rear end face of the rotating wing is 90 degrees with the inner wall of the second opening. The sleeve is stuck and cannot be returned to the original path, and the first plate body 4 and the second plate body 5 are connected together. Compared with the known technology, the above method of the present invention is a 100% dry operation, which has the advantages of convenient and quick operation, high connection strength, and can realize the horizontal sequential connection and vertical angle connection of the two plates.

[0077] See attached Figure 2 The connecting shaft is made of round steel, stepped, and has threads at both ends. One end of the torsion spring extends axially and the other end extends radially. The outer wall of the sleeve has two full-length, symmetrical spiral leaves with 90-degree angles at both ends. The tail of the sleeve has a first limiting groove, the clamping cap has threads inside, and has a second limiting groove at its screw-in end. The first limiting groove and the second limiting groove are used to fix the two support rods of the torsion spring.

[0078] When assembling the connection mechanism, first put the torsion spring on the connecting shaft, with the first support rod (radial) of the torsion spring extending inward and the second support rod (axial) extending outward, then put the sleeve in, and make the first support rod of the torsion spring enter the first limiting groove of the sleeve, finally insert the pressure cap, and make the second support rod of the torsion spring insert the second limiting groove of the pressure cap, rotate the connecting shaft, and make the pressure cap and the connecting shaft connected together through threads. After the assembly is completed, the sleeve can be rotated along the shaft by hand, and after releasing the hand, the sleeve can automatically reset under the action of the torsion spring.

[0079] See attached Figure 1It is a schematic diagram of the connection between the two plates. The first connecting seat has a threaded hole and is integrated with the first plate 4. The second plate 5 has a second opening slightly wider than the outer diameter of the sleeve and is integrated with the second plate 5. Before connecting the two plates, first screw the connecting mechanism into the threaded hole of the first connecting seat, and adjust the axial extension length so that the outer end of the spiral wing is in a vertical direction (in the same direction as the second opening of the second connecting seat), and insert the connecting mechanism into the second opening (the spiral wing will rotate during the insertion process). When the end faces of the two plates are in contact, the spiral wing just enters the second installation space completely. The spiral wing is reset (rotated 90 degrees) and locked under the action of the torsion spring, and the plate installation is completed.

[0080] Using the above method, see Appendix Figure 5 and 6 It is a schematic diagram of the horizontal straight connection and the vertical angle connection of the prefabricated assembled panel.

[0081] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0082] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-locking connection device, characterized in that: include: A first connecting seat (1), wherein one side of the first connecting seat (1) has a first opening and an interior thereof has a first installation space; A second connecting seat (3), wherein one side of the second connecting seat (3) has a second opening arranged opposite to the first opening, and a second installation space is provided inside the second connecting seat; and a connecting mechanism (2), the connecting mechanism (2) comprising a connecting shaft (21) and a spiral portion (22); the first end of the connecting shaft (21) is inserted into the first installation space; the spiral portion (22) can be rotated on the other end of the connecting shaft (21) and can be reversely spirally screwed into the second installation space, and after entering the second installation space, the reverse spiral force couple locking is released; wherein the second opening width is smaller than the maximum width value of the spiral portion (22); The connecting shaft (21) comprises an insertion section (211), a first stop shoulder (212), a second stop shoulder (213), a third stop shoulder (214), and a mounting section (215) which are connected in sequence; The outer wall of the insertion section (211) is provided with a threaded structure for being mounted in cooperation with the first installation space; The diameter of the first shoulder (212) is greater than the width of the second opening; the diameters of the first shoulder (212), the second shoulder and the third shoulder (214) decrease in sequence; The spiral portion (22) is mounted on the mounting section (215), and is rotatably connected to the spiral portion (22); The spiral portion (22) comprises: a spiral body (221) and a torsion spring (222); The spiral body (221) comprises a sleeve and two spiral leaves symmetrically arranged on the outer wall of the sleeve, wherein the two spiral leaves form a spiral wing with a narrow head and a wide tail; The torsion spring (222) is sleeved on the mounting section (215), one end of which abuts against the third stop shoulder (214) and is fixed in the sleeve; It also includes a clamping cap (23), the clamping cap (23) being inserted into the sleeve; the clamping cap (23) has an internal thread, and the top outer wall of the mounting section (215) has an external thread matching the internal thread; The head of the compression cap (23) is a conical structure; A first limiting groove (2211) is provided on the rear end of the sleeve, a second limiting groove (231) is provided on the rear end of the clamping cap (23), a first support rod of the torsion spring (222) is fixed in the first limiting groove (2211), and a second support rod thereof is fixed in the second limiting groove (231).

2. A self-locking connection device according to claim 1, characterized in that: The second opening width value is greater than the maximum width value of the pressing cap (23).

3. A self-locking connection device according to claim 1 or 2, characterized in that: The connecting mechanism (2) is made of steel or plastic.

4. A method for connecting a self-locking connection device according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, fixing the first connecting seat in the first plate body, and fixing the second connecting seat in the second plate body; S2, inserting the first end of the connecting mechanism into the first installation space; S3, align the spiral part with the second installation space, and use external force to make it spiral into the second installation space in the reverse direction. After the spiral part enters the second installation space, the reverse spiral force couple is released and it is locked in the second installation space, thereby connecting the first plate body and the second body.

5. The connection method according to claim 4, characterized in that: The first plate body and the second plate body can be connected in a horizontal sequence and in a vertical angle.

Images