Novel plate connecting piece

Abstract

The utility model discloses a novel plate connecting piece which comprises a pull rod, an expansion pipe integrally formed on the outer side of the pull rod, and a driving piece for driving the pull rod to move back and forth in the expansion pipe to expand or retract the expansion pipe. The pull rod comprises a connecting rod part, one end part of the connecting rod part is provided with a conical expansion table of which the outer diameter is gradually reduced from the outer end to the connecting rod part, and the other end part of the connecting rod part is provided with a connecting boss, and the expansion pipe comprises an expansion pipe connecting part, and a first expansion half body and a second expansion half body which are oppositely arranged at the front end of the expansion pipe connecting part at intervals; the expansion pipe connecting part, the first expansion half body and the second expansion half body which are opposite define a containing cavity which at least contains part of the connecting rod part and is matched with the conical expansion table, and a sliding clamping groove is formed in the side wall of the driving piece. The novel plate connecting piece does not need a plurality of connecting tools, reduces part connection, is easy to install and convenient to disassemble, is easy to operate, and is firm and reliable in connection.

Description

Technical Field

[0001] The utility model relates to the technical field of plate connecting pieces, in particular to a novel plate connecting piece. Background Art

[0002] In the prior art, when connecting two vertical plates, a three-in-one connecting piece consisting of a connecting screw, an embedded nut, and an eccentric wheel or a tension buckle assembly is often used. When assembling, the embedded nut needs to be nailed into one of the plates first, and then the connecting screw needs to be screwed into the embedded nut, and then the eccentric wheel or tension buckle assembly needs to be fixed in the other plate, and finally the connecting screw needs to be inserted into the eccentric wheel or tension buckle assembly of the other plate and rotated to fix. Such assembly requires multiple installation tools, and there are many parts installation processes and a long installation time. The existing authorization announcement number is CN216430116U, which is an implicit elastic internal and external telescopic explosive connection, including a pull rod, a spring, and an explosive buckle that is sleeved on the outside of the spring and the pull rod and is connected by a first expansion shell and a second expansion shell in a buckle manner. When in use, the pull rod and the spring are placed in any one of the expansion shells of the explosive buckle, and then the other expansion shell is assembled in pair, and then the explosive buckle is directly screwed into the plate. Under the action of the spring force, the rod cap of the pull rod extends to the outside of the explosive buckle and extends into the circular hole of the tension buckle on the other plate to be connected. When the plate is pulled backward under force after the connection, the pull rod pulls the cone to move toward the top of the explosive buckle, so that a large positive pressure is formed on the outer peripheral surface of the explosive buckle, thereby causing the first expansion shell and the second expansion shell to be stretched open by the cone to achieve a fixing effect. However, since the first expansion shell and the second expansion shell connected by the elastic internal and external telescopic bursting connection through a snap-fit ​​manner are difficult to restore to the snap-fit ​​manner and plug in after being stretched apart (even if the bursting snap-fit ​​is stretched apart), it is difficult to disassemble. In addition, the continuous elastic force of the spring presses against the pull rod, so that the pull rod continues to support the first expansion shell and the second expansion shell connected by the snap-fit, resulting in a certain degree of difficulty in the assembly process of the bursting snap-fit, and the buckle may also be stretched apart after assembly. Utility Model Content

[0003] The purpose of the utility model is to provide a plate connector which does not require multiple connection tools, reduces the number of parts connected, is easy to install and disassemble, is simple to operate, and has a firm and reliable connection, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A new type of plate connecting piece, comprising a pull rod, an expansion tube integrally formed on the outside of the pull rod, and a driving piece that drives the pull rod to move forward and backward in the expansion tube so that the expansion tube expands or retracts. The pull rod comprises a connecting rod part, one end of the connecting rod part is provided with a conical expansion platform that gradually decreases from the outer end to the outer diameter of the connecting rod part, and the other end of the connecting rod part is provided with a connecting boss. The expansion tube comprises an expansion tube connecting part and a first expansion half and a second expansion half that are arranged at a relative gap at the front end of the expansion tube connecting part. The expansion tube connecting part and the relative first expansion half and second expansion half together form a accommodating cavity that at least accommodates part of the connecting rod part and the conical expansion platform. The side wall of the driving piece is provided with a sliding clamping groove, and part of the connecting rod part of the pull rod and the conical expansion platform can be placed in the accommodating cavity of the expansion tube movably forward and backward, and the connecting boss of the pull rod can be detachably clamped in the sliding clamping groove of the driving piece, and under the drive of the driving piece, it moves backward along the accommodating groove to expand the first expansion half and the second expansion half, or moves forward to retract the first expansion half and the second expansion half.

[0006] Furthermore, the accommodating cavities in the first expansion half body and the second expansion half body arranged with a relative gap are conical accommodating cavities.

[0007] Furthermore, an open annular fixing sleeve is provided on the outer side of the driving member, the driving member is rotatably sleeved in the annular fixing sleeve, and the connecting rod portion of the pull rod is partially sleeved through the opening.

[0008] Furthermore, an end portion of the annular fixing sleeve is capped with an end cap, and the end cap seals the driving member in the annular fixing sleeve.

[0009] Furthermore, a fixed sleeve with an opening at one end is provided, and a drive member insertion port that penetrates the inner cavity of the sleeve is provided on the side wall of the fixed sleeve away from the sleeve opening. The pull rod and the expansion tube are inserted into the inner cavity of the fixed sleeve from the opening of the fixed sleeve, and the drive member is inserted into the fixed sleeve through the drive member insertion port and clamped with the pull rod.

[0010] Furthermore, the fixing sleeve is provided with an annular positioning platform along the inner side wall near the opening, and the rear ends of the first expansion half and the second expansion half of the expansion tube are clamped on the annular positioning platform.

[0011] The beneficial effects of the utility model are as follows: the pull rod is movably placed in the integrally formed expansion tube, which saves the assembly of the pull rod and the expansion tube and does not need to worry about the expansion tube being unable to be retracted after expansion. At the same time, the driving member and the pull rod are detachably connected and the pull rod is pulled backward in the expansion tube to expand the expansion tube and fixedly connected, and moved forward to retract the expansion tube for easy disassembly. Therefore, multiple connection tools are not required for assembly, the connection of parts is reduced, it is easy to install and disassemble, and the operation is simple and the connection is firm and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0013] Figure 1 This is a schematic diagram of the structure of a new type of plate connector of the utility model;

[0014] Figure 2 This is a schematic diagram of a new type of plate connector in a disassembled state according to the utility model;

[0015] Figure 3 This is a schematic diagram of a partial cutaway structure of a new type of plate connector of the utility model;

[0016] Figure 4 Schematic diagram of the pull rod structure;

[0017] Figure 5 It is a schematic diagram of the expansion tube structure;

[0018] Figure 6 It is a schematic diagram of the expansion half structure;

[0019] Figure 7 It is a schematic diagram of the half-cut structure of the expansion tube;

[0020] Figure 8 It is a schematic diagram of the driving component structure;

[0021] Fig. 9 This is a structural schematic diagram of another embodiment of a new type of plate connector of the utility model;

[0022] Fig.10 This is a schematic diagram of a disassembled state of another embodiment of a novel plate connecting piece of the utility model;

[0023] Fig.11 This is a structural schematic diagram of a third embodiment of a new type of plate connector of the utility model;

[0024] Fig.12 This is a structural schematic diagram of a fourth embodiment of a novel plate connector of the utility model;

[0025] Fig.13 This is a schematic diagram of the sleeve structure of the fourth embodiment of a novel plate connecting piece of the utility model;

[0026] Fig.14 It is a partial cutaway schematic diagram of the installation state of the fourth embodiment of a novel plate connecting member of the utility model;

[0027] Fig.15 This is a schematic diagram of a plate installation in the fourth embodiment of a new type of plate connector of the utility model;

[0028] Fig.16 This is another schematic diagram of plate installation of the fourth embodiment of a novel plate connector of the utility model;

[0029] Fig.17 This is a schematic diagram of plate connection according to the fourth embodiment of a novel plate connecting member of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further clearly and completely described below in combination with the embodiments of the utility model. It should be noted that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", and "right" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0032] Example 1

[0033] like Figure 1-8 As shown, the utility model is a novel plate connecting member comprising a tie rod 1, an expansion tube 2 integrally formed on the outside of the tie rod 1, and a driving member 3 driving the tie rod 1 to move forward and backward in the expansion tube 2 to expand or retract the expansion tube 2.

[0034] Among them, Figure 2 , Figure 4 As shown, the pull rod 1 comprises a connecting rod portion 11, a conical expansion platform 12 which gradually decreases from the outer end to the outer diameter of the connecting rod portion at one end of the connecting rod portion 11, and a connecting boss 13 which is provided at the other end of the connecting rod portion 11;

[0035] like Figure 5-Figure 7 As shown, the expansion tube 2 includes an expansion tube connection portion 21 and a first expansion half body 22 and a second expansion half body 23 arranged at the front end of the expansion tube connection portion 21 with a relative gap 24. The expansion tube connection portion 21 and the first expansion half body 22 and the second expansion half body 23 relative to each other together form a receiving cavity 25 for receiving at least part of the connecting rod portion 11 and the conical expansion platform 12;

[0036] like Figure 8As shown, the driving member 3 includes a driving member body 31, a side wall of the driving member 3 body is provided with a sliding locking groove 32, and the upper end of the driving member 3 body is provided with a driving slot 33. Of course, the upper end of the driving member 3 body can also be a driving boss.

[0037] The utility model provides a new type of plate connecting piece, wherein the connecting rod portion 11 and the conical expansion platform 12 of the pull rod 1 can be placed in the accommodating chamber 25 of the expansion tube 2 in a manner that they can be moved forward and backward, and the connecting boss 13 of the pull rod 1 can be detachably clamped in the sliding clamping groove 32 of the driving member 3. Driven by the driving member 3, the connecting rod portion 11 and the conical expansion platform 12 of the pull rod move backward along the accommodating groove 25 to expand the first expansion half body 22 and the second expansion half body 23, or the connecting rod portion 11 and the conical expansion platform 12 move forward along the accommodating groove 25 to retract the first expansion body 22 and the second expansion body 23.

[0038] The utility model provides an operating method for a new type of plate connecting rod as follows: first, a first insertion hole is opened near one end of a plate to be connected, a second insertion hole is opened near the end of another plate, and a connecting channel connected to the second insertion hole is opened at the end of the other plate near the second insertion hole; a pull rod and an expansion tube movably placed in an integrally formed expansion tube together place the first expansion half and the second expansion half of the expansion tube in the first insertion hole toward the first insertion hole; then a driving member is inserted into the second insertion hole and the driving member is rotated to move the sliding clamping groove toward the direction of the connecting channel; one of the plates or two plates are held together, the pull rod and the expansion tube of one plate are inserted into the connecting channel of the other plate, and the connecting boss of the pull rod is clamped into the sliding clamping groove of the driving member; finally, the driving member in the second insertion hole is rotated with a tool to drive the connecting rod portion and the conical expansion table 12 of the pull rod to move backward along the accommodating groove to expand the first expansion half and the second expansion half to lock the two plates so that the two plates are connected. When disassembly is required, the driving member is rotated in the reverse direction to drive the connecting rod portion of the pull rod and the conical expansion platform to move forward along the accommodating groove to retract the first expansion body and the second expansion body, and finally the plate connecting member is disassembled and pulled out from the plate.

[0039] The utility model provides a new type of plate connecting rod that is movably placed in an integrally formed expansion tube through a pull rod, which saves the assembly of the pull rod and the expansion tube and does not need to worry about the expansion tube being unable to be retracted after expansion. At the same time, the driving member and the pull rod are detachably connected and the pull rod is pulled backward in the expansion tube to expand the expansion tube and fixedly connected, and moved forward to retract the expansion tube for easy disassembly. Therefore, multiple connection tools are not required for assembly, the connection of parts is reduced, it is easy to install and disassemble, and the operation is simple and the connection is firm and reliable.

[0040] Preferably, if Figure 6As shown, the accommodating chamber 25 in the first expansion half 22 and the second expansion half 23 of the expansion tube 2 is a conical accommodating chamber, which matches the conical expansion platform of the pull rod so that the first expansion half and the second expansion half can be expanded more quickly.

[0041] Example 2

[0042] like Figure 9-10 As shown, this embodiment is based on the embodiment 1, and an open annular fastening sleeve 4 is provided on the outside of the driving member. The connection strength between the driving member and the plate is strengthened by the annular fastening sleeve, and it is particularly preferably used for hollow plates such as aluminum sealing plates. A new type of plate connecting member in the embodiment 2 includes a pull rod 1', an expansion tube 2' integrally formed on the outside of the pull rod 1', and a driving member 3' that drives the pull rod 1' to move back and forth in the expansion tube 2' so that the expansion tube 2' expands or retracts, and an open annular fastening sleeve 4 is provided on the outside of the driving member 3'. The driving member 3' can be rotatably mounted in the annular fastening sleeve 4, and the connecting rod portion of the pull rod 1' is partially inserted in the opening. This embodiment is different from the embodiment 1 except that the driving member 3' is inserted into the annular fastening sleeve 4 in advance, and then the annular fastening sleeve 4 is inserted into the second insertion hole of another plate together with the driving member 3'. The other connection operations are consistent with those of the embodiment 1.

[0043] Example 3

[0044] like Fig.11 As shown, this embodiment is based on the embodiment 2, and an end cap 5 is clamped on the end of the annular fixing sleeve 4, and the end cap 5 seals the driving member 3' in the annular fixing sleeve 4.

[0045] Example 4

[0046] like Figure 12-Figure 17 As shown, this embodiment is based on the embodiment 1, and a fixing sleeve 6 with an open end is added. The fixing sleeve 6 makes the new type of plate connecting member of the utility model applicable to a variety of plates, especially hollow honeycomb plates such as aluminum sealing plates, and can ensure the smooth movement of the driving member, the pull rod and the expansion tube. In addition, the connection strength between the driving member and the plate is also strengthened. Fig.13The fixed sleeve 6 is provided with a drive member insertion opening 62 which is connected with the inner cavity of the sleeve on the side wall away from the sleeve opening 61. When installing and using, the other end of the fixed sleeve 6 away from the opening is inserted into the connecting channel toward the connecting channel of the other plate and the drive member insertion opening 62 is overlapped with the second insertion hole, and then the drive member is inserted into the hole 62 and the drive member is rotated to make the sliding clamping groove face the opening direction of the fixed sleeve 6, and one of the plates or two plates are held together to insert the pull rod and expansion tube of one plate from the opening of the fixed sleeve of the other plate into the inner cavity of the fixed sleeve and the connecting boss of the pull rod is clamped into the sliding clamping groove of the drive member, and finally the drive member in the second insertion hole is rotated with a tool to drive the connecting rod part of the pull rod and the conical expansion platform 12 to move backward along the accommodating groove to expand the first expansion half and the second expansion half to lock so that the two plates are connected.

[0047] Preferably, if Fig.13 As shown, the fixed sleeve 6 is provided with an annular clamping platform 63 along the inner wall near the opening 61, and the rear ends of the first expansion half 22 and the second expansion half 23 of the expansion tube 2 are clamped at the annular clamping platform 63. Through the annular clamping platform 63, the first expansion half 22 and the second expansion half 23 of the expansion tube are extended into the fixed sleeve along with less pull rods, so that the first expansion half 22 and the second expansion half are expanded more and connected to the plate more securely.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A new type of plate connector, characterized in that: The expansion tube comprises a pull rod, an expansion tube integrally formed on the outside of the pull rod, and a driving member that drives the pull rod to move forward and backward in the expansion tube so that the expansion tube expands or retracts. The pull rod comprises a connecting rod portion, one end of the connecting rod portion is provided with a conical expansion platform that gradually decreases from the outer end to the outer diameter of the connecting rod portion, and the other end of the connecting rod portion is provided with a connecting boss. The expansion tube comprises an expansion tube connecting portion and a first expansion half and a second expansion half that are arranged at a relative gap at the front end of the expansion tube connecting portion. The expansion tube connecting portion and the relative first expansion half and second expansion half together form a accommodating cavity that at least accommodates part of the connecting rod portion and the conical expansion platform. The side wall of the driving member is provided with a sliding clamping groove, and part of the connecting rod portion of the pull rod and the conical expansion platform can be movably placed in the accommodating cavity of the expansion tube forward and backward, and the connecting boss of the pull rod can be detachably clamped in the sliding clamping groove of the driving member, and under the drive of the driving member, it moves backward along the accommodating groove to expand the first expansion half and the second expansion half, or moves forward to retract the first expansion body and the second expansion body.

2. A new type of plate connector according to claim 1, characterized in that: The accommodating cavities in the first expansion half body and the second expansion half body arranged in relative gap are conical accommodating cavities.

3. A new type of plate connector according to claim 1, characterized in that: An open annular fixing sleeve is arranged on the outer side of the driving member, the driving member is rotatably sleeved in the annular fixing sleeve, and the connecting rod portion of the pull rod is partially sleeved through the opening.

4. A new type of plate connector according to claim 3, characterized in that: The end of the annular fixing sleeve is capped with an end cap, and the end cap seals the driving member in the annular fixing sleeve.

5. A new type of plate connector according to claim 1, characterized in that: A fixed sleeve with an opening at one end is also provided, and a drive member insertion port that penetrates the inner cavity of the sleeve is provided on the side wall of the fixed sleeve away from the sleeve opening. The pull rod and the expansion tube are inserted into the inner cavity of the fixed sleeve from the opening of the fixed sleeve, and the drive member is inserted into the fixed sleeve through the drive member insertion port and clamped with the pull rod.

6. A new type of plate connector according to claim 5, characterized in that: The fixing sleeve is provided with an annular positioning platform along the inner side wall near the opening, and the rear ends of the first expansion half and the second expansion half of the expansion tube are clamped on the annular positioning platform.

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