Elastic clamping lock catch type pipe pile mechanical connection joint for cement component

Abstract

The utility model relates to an elastic clamping lock catch type pipe pile mechanical connector for a cement component, which comprises an upper connecting sleeve body and a lower connecting sleeve body, the lower end of the upper connecting sleeve body is provided with a connecting bolt used for being inserted into the lower connecting sleeve body, the middle part of the connecting bolt is provided with an annular positioning groove, the upper end of the lower connecting sleeve body is provided with a gland, and the gland is provided with an annular positioning groove. A through hole for the connecting bolt to pass through is formed in the middle of the gland; a pair of clamping lock catches for being clamped into the annular positioning groove of the connecting bolt is arranged below the gland in the lower connecting sleeve body; the two clamping lock catches are sleeved with spring rings used for pulling the two clamping lock catches to be folded towards the middle. The elastic clamping lock catch type pipe pile mechanical connector for the cement component is reasonable in design, simple in structure, reliable in connection, convenient to construct, low in manufacturing cost, high in construction efficiency and good in market prospect.

Description

Technical Field

[0001] The utility model relates to the field of building components, in particular to a spring-lock type pipe pile mechanical connection joint for cement components. Background Art

[0002] Various mechanical connection joints for prestressed concrete piles have been widely used in the construction market and have achieved remarkable results. At present, everyone is seeking a mechanical connection method that is efficient, energy-saving, reliable in quality, simple and convenient in structure, and cost-effective. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a spring-lock type pipe pile mechanical connection joint for cement components, which has a simple structure, reliable connection, convenient construction and low manufacturing cost.

[0004] The utility model is implemented by the following scheme: a spring-clip lock-type pipe pile mechanical connection joint for cement components, comprising an upper connection sleeve and a lower connection sleeve, the lower end of the upper connection sleeve is provided with a connection pin for inserting into the weight of the lower connection sleeve, the middle of the connection pin is provided with an annular positioning groove, the upper end of the lower connection sleeve is provided with a pressure cover, the middle of the pressure cover is provided with a through hole for the connection pin to pass through, and the lower connection sleeve is provided with a pair of clamping lock buckles for clamping into the annular positioning groove of the connection pin below the pressure cover; the two clamping lock buckles are sleeved with spring rings for pulling the two clamping lock buckles to be gathered toward the middle.

[0005] Furthermore, the clamping lock buckle is arc-shaped, and an arc-shaped groove for fitting the spring ring is provided on the outer side of the clamping lock buckle.

[0006] Furthermore, a guide support cover is provided between the two clamping locks for propping the two clamping locks apart and capable of falling downward after being pushed by the connecting pin.

[0007] Furthermore, the upper portion of the connecting pin is provided with an external thread and is threadedly connected to the lower end of the upper connecting sleeve.

[0008] Furthermore, a hole step is provided at the upper end of the lower connecting sleeve, the clamping lock is placed on the hole step, and the pressure cover is threadedly connected to the upper end of the lower connecting sleeve; the lower connecting sleeve is also provided with an internal thread located below the hole step.

[0009] Furthermore, the upper end of the upper connecting sleeve and the lower end of the lower connecting sleeve are provided with constricted openings.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the spring-lock type pipe pile mechanical connection joint for cement components of the utility model has reasonable design, simple structure, reliable connection, convenient construction, low manufacturing cost, high construction efficiency, and has a good market prospect.

[0011] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the separated state of the connection joint in the embodiment of the present utility model;

[0013] Figure 2 is a top view of the combined state of the clamping lock, the guiding support cover and the spring ring in the embodiment of the present utility model;

[0014] Figure 3 is a schematic diagram of the connected state of the connection joint in the embodiment of the present utility model;

[0015] Explanation of the reference numerals in the drawings: 100 - upper connecting sleeve body, 200 - lower connecting sleeve body, 300 - connecting pin, 310 - annular positioning groove, 400 - gland, 500 - clamping lock, 600 - spring ring, 700 - guiding support cover, 800 - upper PC steel bar, 900 - lower PC steel bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] As Figures 1 to 3As shown, a spring-cage lock-type pipe pile mechanical connection joint for cement components includes an upper connection sleeve 100 and a lower connection sleeve 200. The lower end of the upper connection sleeve 100 is provided with a connection pin 300 for inserting into the lower connection sleeve body, and the middle of the connection pin is provided with an annular positioning groove 310. The upper end of the lower connection sleeve is provided with a pressure cap 400, and the middle of the pressure cap is provided with a through hole for the connection pin to pass through. A pair of clamping lock buckles 500 for clamping into the annular positioning groove of the connection pin are provided in the lower connection sleeve below the pressure cap. The connection joint is used for connecting the upper and lower PC steel bars. When in use, the upper connection sleeve 100 is sleeved on the lower end of the upper PC steel bar, and the lower connection sleeve 200 is sleeved on the upper end of the lower PC steel bar; the two clamping lock buckles 500 as locking members adopt a split-petal design. When the connection pin 300 is inserted, the two clamping lock buckles 500 are clamped into the annular positioning groove from both sides to achieve connection.

[0019] In this embodiment, the two clamping locks are sleeved with a spring ring 600 for pulling the two clamping locks to close together. The spring ring provides a force for the two clamping locks 500 to close together, and the spring ring is used to elastically hold the two clamping locks to lock the connecting pin.

[0020] In this embodiment, the clamping lock is arc-shaped, and an arc-shaped groove for fitting the spring ring is provided on the outer side of the clamping lock to prevent the spring ring from falling off.

[0021] In this embodiment, a guide support cover 700 is provided between the two clamping locks for propping the two clamping locks apart and capable of falling downward after being pushed by a connecting pin; the guide support cover 700 is concave in shape and has an opening facing upward; before the connecting pin is inserted, the guide support cover 700 is used to prop the two clamping locks apart to prevent the two clamping locks from closing in advance, thereby leaving space between the two clamping locks for the connecting pin to be inserted; during the connection process, the guide support cover falls off automatically due to the impact of the connecting pin.

[0022] In this embodiment, the upper portion of the connecting pin is provided with an external thread and is threadedly connected to the lower end of the upper connecting sleeve, and the lower end of the upper connecting sleeve is internally provided with an internal thread.

[0023] In this embodiment, a hole step is provided at the upper end of the inner part of the lower connecting sleeve, the clamping lock is placed on the hole step, and the pressure cover is threadedly connected to the upper end of the lower connecting sleeve; an external thread is provided at the outer periphery of the upper end of the lower connecting sleeve, and an internal thread is provided on the inner side of the pressure cover, and the clamping lock is restricted in the lower connecting sleeve by using the hole step and the pressure cover; in the specific implementation process, the pressure cover can also be provided with an external thread, and the lower connecting sleeve can be provided with an internal thread on the side wall of the hole step, as long as the pressure cover and the lower connecting sleeve hole can be threadedly connected.

[0024] In this embodiment, the lower connecting sleeve is further provided with an internal thread below the hole step to be used as a tensioning process hole.

[0025] In this embodiment, a reduced opening is provided at the upper end of the upper connecting sleeve body and the lower end of the lower connecting sleeve body. The reduced opening allows the PC steel bar to pass through it, and the socket connection between the connecting sleeve body and the PC steel bar is realized by using the upset head at the end of the PC steel bar. After the upper PC steel bar passes through the upper connecting sleeve body, the upset head at its lower end is stuck below the reduced opening of the upper connecting sleeve body; after the lower PC steel bar passes through the lower connecting sleeve body, the upset head at its upper end is stuck above the reduced opening of the lower connecting sleeve body.

[0026] Construction process:

[0027] 1. First, put the upper connecting sleeve body on the lower end of the upper PC steel bar, and put the lower connecting sleeve body on the upper end of the lower PC steel bar. Then upset the end of the PC steel bar so that the upper and lower connecting sleeve bodies are respectively fixed on the corresponding PC steel bars.

[0028] 2. Then enter the production of the overall steel reinforcement cage. Align through the tensioning plates and tensioning bolts on both end faces, and use the upper and lower connecting sleeve bodies to perform the tensioning process on each connecting steel bar.

[0029] 3. After the production of the steel reinforcement cage is completed, enter the precast cement process. Wait for the cement products to dry to form the upper pile section and the lower pile section.

[0030] 4. Put the assembly composed of a clamping lock, a guiding support cover, and a spring ring into the lower connecting sleeve body, and install the gland; install a connecting pin at the lower end of the upper connecting sleeve body.

[0031] 5. During the connection process, the connecting pin moves downward with the upper pile section. The connecting pin passes through the through hole in the middle of the gland and pushes the guiding support cover to make it fall off. The two clamping lock catches in the lower connecting sleeve body are stuck in the annular positioning groove of the connecting pin under the action of the spring ring to lock the connecting pin, realizing the connection between the upper and lower pile sections.

[0032] For any of the technical solutions disclosed by the present utility model as described above, unless otherwise stated, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is only the numerical values with obvious technical effects or representativeness among many feasible numerical values. Since there are too many numerical values to list them all, the present utility model only discloses some numerical values to illustrate the technical solutions of the present utility model. Moreover, the numerical values listed above should not constitute a limitation on the protection scope of the present utility model.

[0033] If the present utility model discloses or involves components or structural members that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws for connection), or it can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the components fixedly connected to each other can also be replaced by an integral structure (for example, manufactured integrally by a casting process) (except when it is obviously impossible to use the integral forming process).

[0034] In addition, unless otherwise stated, the terms used to represent the positional relationship or shape in any of the technical solutions disclosed in the present utility model include states or shapes that are approximate, similar, or close to them.

[0035] Any component provided by the present utility model can either be assembled from multiple separate components or be a single component manufactured by an integral forming process.

[0036] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A snap-lock type mechanical connection joint for pipe piles of cement components, characterized in that: It comprises an upper connecting sleeve and a lower connecting sleeve, wherein the lower end of the upper connecting sleeve is provided with a connecting pin for inserting into the weight of the lower connecting sleeve, a ring-shaped positioning groove is provided in the middle of the connecting pin, the upper end of the lower connecting sleeve is provided with a pressure cover, a through hole is provided in the middle of the pressure cover for the connecting pin to pass through, and a pair of clamping lock buckles for clamping into the ring-shaped positioning groove of the connecting pin are provided in the lower connecting sleeve below the pressure cover; spring rings are provided on the two clamping lock buckles for pulling the two clamping lock buckles to gather towards the middle.

2. The snap-lock type mechanical pipe pile connection joint for cement components according to claim 1, characterized in that: The clamping lock buckle is arc-shaped, and an arc-shaped groove for fitting a spring ring is provided on the outer side of the clamping lock buckle.

3. The snap-lock type mechanical connection joint for cement components according to claim 1, characterized in that: A guide support cover is arranged between the two clamping lock buckles for propping the two clamping lock buckles apart and can fall downward after being pushed by the connecting latch pin.

4. The snap-lock type mechanical pipe pile connection joint for cement components according to claim 1, characterized in that: The upper part of the connecting pin is provided with an external thread and is threadedly connected to the lower end of the upper connecting sleeve body.

5. The snap-lock type mechanical pipe pile connection joint for cement components according to claim 1, characterized in that: The upper end of the lower connecting sleeve is provided with a hole step, the clamping lock buckle is placed on the hole step, and the pressure cover is threadedly connected to the upper end of the lower connecting sleeve; the lower connecting sleeve is also provided with an internal thread located below the hole step.

6. The snap-lock type mechanical pipe pile connection joint for cement components according to claim 1, characterized in that: The upper end of the upper connecting sleeve body and the lower end of the lower connecting sleeve body are provided with shrinkage openings.

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