Bolt type mechanical connector

Abstract

The utility model relates to the field of connectors, in particular to a bolt type mechanical connector, which comprises an upper connecting sleeve, a lower connecting sleeve, an inserting piece, a spring, a connecting piece and a limiting sleeve, the upper end part of the inserting piece is in threaded connection with the interior of the upper connecting sleeve, the middle part of the inserting piece is provided with a threaded groove I, the lower end of the inserting piece is provided with a guide head, and the limiting sleeve is arranged in the threaded groove I; the spring and the inserting piece are sequentially arranged in the lower connecting sleeve, the limiting sleeve is in threaded connection with the interior of the lower connecting sleeve, the upper end of the connecting piece is located in the limiting sleeve, the upper end of the connecting piece has taper, a second threaded groove is formed in the upper end of the connecting piece, and disconnecting grooves are formed in the outer side of the connecting piece at intervals. The guide head penetrates through the limiting sleeve, ejects the upper end of the connecting piece and then enters the connecting piece, the connecting piece rebounds to enable the second threaded groove and the first threaded groove to be fixedly connected in a matched mode, the first threaded groove and the second threaded groove are fixedly connected in a matched mode, connection is completed through elastic deformation and rebounding of the connecting piece, and the connecting process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and specifically to a bolt-type mechanical connector. Background Technology

[0002] In the field of building construction, precast concrete piles are widely used in various foundation projects due to their advantages such as fast construction speed and stable bearing capacity. However, due to constraints from factors such as production equipment, transportation conditions, and construction operations, the length of precast concrete piles is usually limited, generally not exceeding 15m for a single pile section. This makes it difficult to meet the design pile length requirements for the building's bearing capacity in one go. Therefore, on-site pile splicing becomes an essential step in the pile driving process.

[0003] With the development of construction technology, mechanical connectors have been gradually applied to pipe pile splicing operations, effectively improving splicing efficiency by replacing traditional welding. However, existing mechanical connectors still have many shortcomings. Some traditional pre-embedded connectors have relatively simple structural designs, requiring multiple complex steps during installation, resulting in slow installation speed. Other mechanical connectors still require welding for auxiliary fixation during installation, which not only increases construction costs and safety hazards but also reduces splicing efficiency due to the complexity of welding operations, failing to meet the demands of efficient and rapid construction in modern building projects. Therefore, there is an urgent need for a new type of mechanical connector with a reasonable structure, convenient installation, and no welding required to solve the problems in existing technologies. Utility Model Content

[0004] This utility model provides a bolt-type mechanical connector to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A bolt-type mechanical connector includes: an upper connecting sleeve, a lower connecting sleeve, a plug, a spring, a connector, and a limiting sleeve. The upper end of the plug is threadedly connected to the inside of the upper connecting sleeve. The middle part of the plug has a first threaded groove. The lower end of the plug has a guide head. The spring and the plug are sequentially arranged inside the lower connecting sleeve. The limiting sleeve is threadedly connected to the inside of the lower connecting sleeve. The upper end of the connector is located inside the limiting sleeve. The upper end of the connector has a taper and a second threaded groove inside. The outer side of the connector has a spacing of a break groove. The guide head passes through the limiting sleeve and pushes open the upper end of the connector before entering the inside of the connector. The connector springs back to match and fix the second threaded groove with the first threaded groove.

[0006] In a further improvement, the connector includes a deformation snap-fit ​​part and a bottom sleeve part. The bottom sleeve part is integrally fixed to the lower end of the deformation snap-fit ​​part. The outer diameter of the lower end of the deformation snap-fit ​​part is smaller than the outer diameter of the upper end of the bottom sleeve part. The lower end of the limiting sleeve is sleeved on the upper end of the bottom sleeve part. The upper end of the disconnecting groove extends to the top surface of the deformation snap-fit ​​part, and the lower end of the disconnecting groove does not extend to the bottom surface of the bottom sleeve part. The second threaded groove is located inside the deformation snap-fit ​​part, and a guide surface is provided at the upper end of the inner side of the deformation snap-fit ​​part.

[0007] In a further improvement, the bottom sleeve is provided with an annular groove, and the upper end of the spring is located in the annular groove.

[0008] As a further improvement, the top of the limiting sleeve is provided with a slot.

[0009] In a further improvement, the disconnecting grooves are arranged in four sets at 90° annular intervals.

[0010] Compared with the prior art, the advantages of this bolt-type mechanical connector are as follows:

[0011] The unique connection structure, consisting of an upper connecting sleeve, a lower connecting sleeve, an insert, a spring, a connector, and a limiting sleeve, uses the guide head of the insert to cooperate with the connector, which has a taper, a break groove, and a second threaded groove. The connection is completed by matching and fixing the first and second threaded grooves, and the connection is completed by the elastic deformation and springback of the connector, simplifying the connection process. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the exploded view of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the present invention in its separated state.

[0015] Figure 4 This is a structural diagram of the connection state of this utility model.

[0016] In the figure, 1-upper connecting sleeve, 2-lower connecting sleeve, 3-insert, 31-thread groove one, 32-guide head, 4-spring, 5-connector, 51-thread groove two, 52-disconnect groove, 53-deformation snap-fit ​​part, 531-guide surface, 54-bottom sleeve part, 55-annular groove, 6-limiting sleeve, 61-slotted opening. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] The following describes the embodiments and appendices. Figures 1-4 The technical solution of this utility model will be further described below.

[0019] Example 1

[0020] A bolt-type mechanical connector includes: an upper connecting sleeve 1, a lower connecting sleeve 2, a plug 3, a spring 4, a connector 5, and a limiting sleeve 6. The upper end of the plug 3 is threaded to the inside of the upper connecting sleeve 1. The plug 3 has a threaded groove 31 in the middle. The lower end of the plug 3 has a guide head 32. The spring 4 and the plug 3 are sequentially arranged inside the lower connecting sleeve 2. The limiting sleeve 6 is threaded to the inside of the lower connecting sleeve 2. The upper end of the connector 5 is located inside the limiting sleeve 6. The upper end of the connector 5 has a taper and a threaded groove 51 inside. The outer side of the connector 5 has a discontinuation groove 52 spaced apart. The guide head 32 passes through the limiting sleeve 6 and pushes open the upper end of the connector 5 before entering the inside of the connector 5. The connector 5 springs back, causing the threaded groove 51 to match and be fixedly connected with the threaded groove 31.

[0021] like Figures 1-4 As shown, when using this bolt-type mechanical connector for pipe pile connection, the upper connecting sleeve is first fixedly connected to one pipe pile, and the lower connecting sleeve is fixedly connected to another pipe pile. When the two pipe piles approach each other for mating, the guide head at the lower end of the insert passes through the limiting sleeve. Due to the tapered upper end of the connector and the disengagement groove on the outside, the guide head can smoothly push open the upper end of the connector and enter the interior of the connector. As the guide head penetrates deeper, the connector undergoes elastic deformation. When the guide head reaches the appropriate position, the connector rebounds under its own elasticity, causing the second threaded groove inside the connector to match the first threaded groove in the middle of the insert, thereby achieving a fixed connection between the two and completing the connection of the two pipe piles. Throughout the connection process, the spring plays a certain buffering and auxiliary role, ensuring that the insert and connector can smoothly cooperate and connect.

[0022] This connection method eliminates the need for welding, simplifying the construction process for splicing pipe piles and significantly improving splicing efficiency. Simultaneously, the mating connection of threaded groove one and threaded groove two provides reliable connection strength, ensuring the stability and load-bearing capacity of the connected pipe piles and effectively preventing engineering quality problems caused by weak connections.

[0023] As a further preferred embodiment, the connector 5 includes a deformable snap-fit ​​portion 53 and a bottom sleeve portion 54. The bottom sleeve portion 54 is integrally fixed to the lower end of the deformable snap-fit ​​portion 53. The outer diameter of the lower end of the deformable snap-fit ​​portion 53 is smaller than the outer diameter of the upper end of the bottom sleeve portion 54. The lower end of the limiting sleeve 6 is sleeved on the upper end of the bottom sleeve portion 54. This structural design allows the limiting sleeve to play a stable limiting role for the connector. The upper end of the disconnecting groove 52 extends to the top surface of the deformable snap-fit ​​portion 53, while the lower end of the disconnecting groove 52 does not extend to the bottom surface of the bottom sleeve portion 54. This ensures that the deformable snap-fit ​​portion can undergo elastic deformation when subjected to force, while the bottom sleeve portion remains stable, ensuring the overall structural strength of the connector. The second threaded groove 51 is located inside the deformable snap-fit ​​portion 53. The upper end of the inner side of the deformable snap-fit ​​portion 53 is provided with a guide surface 531, which can guide the guide head of the plug-in to smoothly enter the interior of the connector, reduce insertion resistance, and make the connection process smoother.

[0024] As a further preferred embodiment, the bottom sleeve 54 has an annular groove 55 inside, and the upper end of the spring 4 is located in the annular groove 55. During the connection process between the plug and the connector, the spring is compressed. When the connector rebounds, the spring force can help the connector to better connect with the plug. Furthermore, when the pipe pile is subjected to external force, the spring can play a certain role in buffering and shock absorption, mitigating the impact of external force on the connection between the connector and the pipe pile.

[0025] As a further preferred embodiment, the top of the limiting sleeve 6 is provided with a slot 61. When installing the limiting sleeve, a corresponding tool (such as a flathead screwdriver) can be inserted into the slot to facilitate the construction personnel to rotate the limiting sleeve and realize the threaded connection between the limiting sleeve and the lower connecting sleeve, which is convenient for installation and disassembly.

[0026] In a further preferred embodiment, the disconnecting grooves 52 are arranged in four sets at 90-degree annular intervals. This uniform distribution design ensures that the connector undergoes uniform elastic deformation when subjected to the opening force of the guide head, preventing inconsistent deformation due to uneven force distribution and ensuring a smooth connection with the insert.

[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A bolted mechanical connector, characterized by Include: The upper connecting sleeve, the lower connecting sleeve, the plug-in, the spring, the connecting piece and the limit sleeve, the plug-in upper end is connected with the inside of the upper connecting sleeve, the plug-in middle part is equipped with the thread groove one, the plug-in lower end is equipped with the guide head, the spring and the plug-in are arranged in the lower connecting sleeve inside in turn, the limit sleeve is connected with the inside of the lower connecting sleeve, the connecting piece upper end is located in the limit sleeve inside, the connecting piece upper end has the taper and is equipped with the thread groove two inside, the connecting piece outside is equipped with the break slot, the guide head passes through the limit sleeve and opens the connecting piece upper end and then enters the connecting piece inside, the connecting piece springback makes the thread groove two and the thread groove one match fixed connection.

2. A bolted mechanical connector according to claim 1, wherein, The connecting piece includes the deformation clamping part and the bottom sleeve part, the bottom sleeve part is integrally fixed to the lower end of the deformation clamping part, the lower end outer diameter of the deformation clamping part is less than the upper end outer diameter of the bottom sleeve part, the limit sleeve lower end is sleeved on the upper end of the bottom sleeve part, the break slot upper end is through to the deformation clamping part top surface, the break slot lower end is not through to the bottom sleeve part bottom surface, the thread groove two is located in the inside of the deformation clamping part, the inside of the deformation clamping part upper end is equipped with the guide surface.

3. A bolted mechanical connector according to claim 2, wherein, The inside of the bottom sleeve part is equipped with the annular groove, and the spring upper end is located in the annular groove.

4. A bolt type mechanical connector according to claim 1, wherein The limit sleeve top is equipped with a one-way slot.

5. A bolt type mechanical connector according to claim 1, wherein The break slot is 90 annularly spaced four groups.

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