CN213476846U

CN213476846U - Precast pile mechanical joint and precast pile connection structure

Info

Publication number: CN213476846U
Application number: CN202021622629.7U
Authority: CN
Inventors: 邱振贵; 冼景成; 李龙; 何友林
Original assignee: Guangdong Sanhe Pile Co Ltd
Current assignee: Guangdong Sanhe Pile Co Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-06-18
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a precast pile mechanical joint, including tightly fastening the screw rod, blocking and carrying subassembly and the solid subassembly of card, tightly fastening the screw rod and including fixing base and inserted bar, the blocking carries the subassembly including fixed cover, fixed cover is equipped with the cover chamber that runs through both ends, the cover intracavity is located to the solid subassembly of card, the inserted bar is inserted and is located the cover intracavity, the solid subassembly of card includes that a card section of thick bamboo and cover locate the outer jump ring circle of a card section of thick bamboo, jump ring circle is equipped with the breach, jump ring circle is made by elastic material, the axial relatively fixed of a card section of thick bamboo and fixed cover, a card section of thick bamboo is formed by two piece at least anchor pieces concatenations, a card section of thick bamboo makes the inserted bar can insert through the jump ring circle and locates in a card section of thick bamboo and make inserted bar and anchor piece. Correspondingly, the utility model discloses a precast pile connection structure, including this precast pile mechanical joint. Adopt the utility model discloses, simple structure, construction requirement is low, and the simple installation is swift, and application scope is wide.

Description

Precast pile mechanical joint and precast pile connection structure

Technical Field

The utility model relates to a concrete pile field of connecting, in particular to precast pile mechanical joint reaches precast pile connection structure including this precast pile mechanical joint.

Background

The existing prestressed concrete precast pile has the advantages of short construction period, reliable quality, resource saving and the like, and is widely applied to infrastructure. However, due to the reasons of production, transportation, construction and the like, the length of a single-section precast pile often cannot meet the engineering design requirements, and pile splicing needs to be carried out on a construction site. Mechanical joint is a connected mode that designs in order to realize precast concrete pile high-speed joint demand, however, current mechanical joint structure is complicated, and the requirement of counterpointing is accurate, and the construction is required highly, and the installation is difficult, and the operation is complicated, and cost is high, and application scope is narrow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a precast pile mechanical joint is provided, simple structure, construction requirement is low, simple installation is swift, and application scope is wide.

The utility model aims to solve the technical problem still in, provide a precast pile connection structure including this precast pile mechanical joint, simple structure, construction requirement is low, and the simple installation is swift.

In order to solve the above technical problem, the utility model provides a mechanical joint for precast pile, which comprises a fastening screw rod, a clamping component and a clamping component, wherein the fastening screw rod comprises a fixed seat and an insertion rod,

the clamping and carrying component comprises a fixed sleeve, the fixed sleeve is provided with a sleeve cavity penetrating through two ends, the clamping and carrying component is arranged in the sleeve cavity, the insertion rod is inserted in the sleeve cavity,

the clamping component comprises a clamping cylinder and a clamping spring ring sleeved outside the clamping cylinder, the clamping spring ring is provided with a notch, the clamping spring ring is made of elastic materials, the clamping cylinder and the fixing sleeve are axially fixed relatively, the clamping cylinder is formed by splicing at least two anchor sheets, and the clamping cylinder enables the insertion rod to be inserted into the clamping cylinder through the clamping spring ring and enables the insertion rod to be fixedly connected with the anchor sheets.

As the improvement of above-mentioned scheme, the inserted bar includes joint portion and meshing portion, joint portion and cover chamber looks adaptation, the meshing portion outer wall is equipped with first meshing tooth.

As an improvement of the scheme, the inner wall of the anchor piece is provided with second meshing teeth, and the inserted bar and the clamping cylinder are meshed and connected through the first meshing teeth and the second meshing teeth.

As an improvement of the scheme, the fixing seat is provided with a first external thread, and the fixing sleeve is provided with a second external thread.

As the improvement of the scheme, the clamping and carrying assembly further comprises a screw cap fixedly arranged at the end part of the fixed sleeve, a limiting part is arranged on the inner wall of the sleeve cavity, one end of the clamping cylinder is abutted against the limiting part, and the other end of the clamping cylinder is abutted against the screw cap, so that the clamping cylinder and the fixed sleeve are axially and relatively fixed.

As an improvement of the above scheme, the fixing sleeve is provided with a third external thread, the screw cap is provided with a first internal thread, and the fixing sleeve and the screw cap are in threaded connection through the third external thread and the first internal thread;

or the fixed sleeve is provided with a second internal thread, the screw cap is provided with a fourth external thread, and the fixed sleeve and the screw cap are in threaded connection through the second internal thread and the fourth external thread.

As an improvement of the scheme, the clamping cylinder is formed by splicing three anchor sheets along the circumferential direction of the clamping cylinder.

As an improvement of the scheme, the anchor pieces are the same in size and shape; the lateral wall of anchor piece is equipped with the jump ring groove, the jump ring circle inlays in the jump ring groove.

Correspondingly, the utility model also provides a precast pile connection structure, including above-mentioned precast pile mechanical joint, upper segment stake and lower segment stake, the upper segment stake is equipped with the sleeve, the lower segment stake is equipped with the lower sleeve, the fixing base can be dismantled with the upper sleeve and be connected, fixed cover can be dismantled with the lower sleeve and be connected.

Correspondingly, the utility model also provides a precast pile connection structure, including above-mentioned precast pile mechanical joint, upper segment stake and lower segment stake, the upper segment stake is equipped with the upper end plate, lower segment stake is equipped with the lower end plate, upper end plate and lower end plate set up relatively, the upper end plate is equipped with the mounting hole, the lower end plate is equipped with down the mounting hole, the fixing base can be dismantled with the upper mounting hole and be connected, fixed cover can dismantle with lower mounting hole and be connected.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses a mechanical joint connects through the cooperation of tightly tying the screw rod and fixed cover and makes two sections stakes realize connecting. Specifically, the insertion rod of the fastening screw rod is inserted into the fixed sleeve, and the insertion rod is fixed in the fixed sleeve through the clamping cylinder and the clamping spring ring in the fixed sleeve, so that the fastening screw rod is connected with the fixed sleeve. The clamping cylinder is formed by splicing at least two anchor sheets, so that the transportation space and cost of accessories can be reduced, and the cost of the accessories is low. The clamping cylinder realizes axial limiting through a limiting part in the fixed sleeve and a screw cap arranged on the fixed sleeve, and the screw cap is in threaded connection with the fixed sleeve, so that the screw cap is stably and reliably arranged. The anchor piece realizes radial spacing through the jump ring circle, because the jump ring circle has elasticity, can change the radial size of a calorie section of thick bamboo according to the atress condition of anchor piece to fix the inserted bar at a calorie section of thick bamboo. Preferably, the insert rod is in meshing connection with the anchor sheet. The utility model discloses utilize the elasticity of jump ring circle to make the inserted bar can insert and locate a card section of thick bamboo to press from both sides the inserted bar tightly at a card section of thick bamboo through the anchor piece, realize tightly tying the firm connection of screw rod and fixed cover. Its simple structure, the construction requirement is low, and simple installation is swift, but the mass production of single subassembly, and each part need not the mill and pre-buries in advance, can install at the job site, is applicable to all pile types, if take the end plate and do not take the end plate precast pile, application scope is wide. The tensile strength of the whole mechanical joint is high, and the comprehensive cost is lower than that of other types of mechanical joints.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the mechanical joint for precast piles according to the present invention;

FIG. 2 is a state diagram of the use of FIG. 1;

FIG. 3 is a schematic view of the fastening screw of FIG. 1;

FIG. 4 is a longitudinal cross-sectional view of the cartridge of FIG. 1;

FIG. 5 is a cross-sectional view of the cartridge of FIG. 1;

FIG. 6 is a schematic view of the construction of the circlip of FIG. 1;

fig. 7 is a cross-sectional view of the harness of fig. 1;

FIG. 8 is a cross-sectional view of the screw cap of FIG. 1;

fig. 9 is a schematic structural view of a second embodiment of the mechanical joint for precast piles according to the present invention;

FIG. 10 is a state diagram of the use of FIG. 9;

FIG. 11 is a schematic view of the fastening screw of FIG. 9;

FIG. 12 is a longitudinal cross-sectional view of the cartridge of FIG. 9;

FIG. 13 is a cross-sectional view of the cartridge of FIG. 9;

FIG. 14 is a schematic view of the construction of the circlip of FIG. 9;

fig. 15 is a cross-sectional view of the harness of fig. 9;

fig. 16 is a cross-sectional view of the screw cap of fig. 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1-16, the utility model discloses a precast pile mechanical joint, including tightly tying screw rod (1, 1 '), block and carry subassembly and the solid subassembly of card, tightly tying screw rod (1, 1') including fixing base (11, 11 ') and inserted bar (12, 12').

The clamping component comprises a fixing sleeve (2, 2 '), the fixing sleeve (2, 2') is provided with a sleeve cavity (21, 21 ') penetrating through two ends, the clamping component is arranged in the sleeve cavity (21, 21'), and the inserting rod (12, 12 ') is inserted in the sleeve cavity (21, 21').

The clamping and fixing assembly comprises a clamping cylinder (5, 5 ') and a clamping spring ring (4, 4') sleeved outside the clamping cylinder (5, 5 '), wherein the clamping spring ring (4, 4') is provided with a notch (41, 41 '), the clamping spring ring (4, 4') is made of elastic materials, the clamping cylinder (5, 5 ') and a fixing sleeve (2, 2') are axially and relatively fixed, the clamping cylinder (5, 5 ') is formed by splicing at least two anchor pieces (51, 51'), the transportation space and cost of accessories can be reduced, and the cost of the accessories is low. The clamping cylinders (5, 5 ') enable the insertion rods (12, 12') to be inserted into the clamping cylinders (5, 5 ') through the clamping spring coils (4, 4') and enable the insertion rods (12, 12 ') to be fixedly connected with the anchor pieces (51, 51'). The clamping cylinder can be unfolded when the inserted rod is inserted into the clamping cylinder, even if the distance between the anchor sheets is enlarged, the clamp spring ring is unfolded, at the moment, the clamp spring ring generates elastic deformation to generate acting force on the anchor sheets, and the inserted rod is clamped tightly through the anchor sheets, so that the inserted rod is fixed in the fixing sleeve. The structure is simple, the construction requirement is low, and the installation is simple, convenient and quick. The utility model discloses utilize the elasticity of jump ring circle to make the inserted bar can insert and locate a card section of thick bamboo to press from both sides the inserted bar tightly at a card section of thick bamboo through the anchor piece, realize tightly tying the firm connection of screw rod and fixed cover.

Preferably, the insert rod (12, 12 ') comprises a clamping part (13, 13 ') and an engaging part (14, 14 '), the clamping part (13, 13 ') is matched with the sleeve cavity (21, 21 '), and the outer wall of the engaging part (14, 14 ') is provided with a first engaging tooth (16, 16 '). The inner wall of the anchor piece (51, 51 ') is provided with second meshing teeth (53, 53'), and the inserted bar (12, 12 ') and the clamping cylinder (5, 5') are in meshing connection through the first meshing teeth (16, 16 ') and the second meshing teeth (53, 53'). As shown in figures 1 and 9, the shape and size of the clamping parts (13, 13 ') and the sleeve cavities (21, 21') are matched, which is beneficial to the tight connection between the fastening screw rod and the fixed sleeve, and the phenomena of looseness and instability of the connection between the fastening screw rod and the fixed sleeve are avoided, thereby ensuring the connection stability of two sections of piles. The inserted bar and the clamping cylinder are connected in a meshing manner to increase the friction force between the inserted bar and the clamping cylinder, so that the relative fixation of the fastening screw and the clamping cylinder in the axial direction is further ensured, and the phenomenon that the fastening screw is separated from the fixed sleeve due to the fact that the inserted bar is separated from the clamping cylinder is prevented, so that the connection stability and reliability of the fastening screw and the fixed sleeve are ensured, and the tensile strength of the mechanical joint is also improved.

Preferably, the fixing seat (11, 11 ') is provided with a first external thread (15, 15'), and the fixing sleeve (2, 2 ') is provided with a second external thread (23, 23'). The first external thread and the second external thread are respectively arranged to enable the fixing seat and the fixing sleeve to be in threaded connection with an end plate screw hole of the precast pile or in threaded connection with a sleeve for tensioning the end plate precast pile, so that the fixing seat and the fixing sleeve can be respectively installed on the upper pile and the lower pile.

As shown in fig. 5 and 13, the clamping cylinder (5, 5 ') is formed by splicing three anchor sheets (51, 51 ') along the circumferential direction of the clamping cylinder (5, 5 '). It should be noted that the anchor sheet may be 2 blocks, 3 blocks, 4 blocks or 5 blocks, but is not limited thereto. Preferably, the copper card (5, 5 ') consists of three anchor pieces (51, 51'). The anchor pieces (51, 51') are identical in size and shape, and the balance stress of the clamp spring coil is guaranteed, so that elastic deformation is realized.

Preferably, the outer side wall of the anchor piece (51, 51 ') is provided with a clamp spring groove (52, 52'), and the clamp spring coil (4, 4 ') is embedded in the clamp spring groove (52, 52'). Through the limiting effect of the clamp spring groove, the clamp spring coil does not shift when deformed under stress, and the clamp spring coil is prevented from being separated from the clamping barrel.

Furthermore, the clamping and carrying assembly further comprises screw caps (3, 3 ') fixedly arranged at the end parts of the fixed sleeves (2, 2 '), the inner walls of the sleeve cavities (21, 21 ') are provided with limiting pieces (22, 22 '), one ends of the clamping cylinders (5, 5 ') are abutted against the limiting pieces (22, 22 '), and the other ends of the clamping cylinders are abutted against the screw caps (3, 3 '), so that the clamping cylinders (5, 5 ') and the fixed sleeves (2, 2 ') are axially and relatively fixed. The utility model discloses a locating part and spiral shell lid will block a section of thick bamboo spacing unstable in the cover intracavity to make the axial relatively fixed of a section of thick bamboo and fixed cover, thereby guarantee to tightly close stability, the reliability that screw rod and fixed cover are connected.

Fig. 1 to 8 show a first embodiment of the present invention, and fig. 9 to 16 show a second embodiment of the present invention. The first embodiment differs from the second embodiment in that: as shown in fig. 1, 7 and 8, the fixing sleeve 2 of the first embodiment is provided with a third external thread 24, the screw cap 3 is provided with a first internal thread 31, and the fixing sleeve 2 and the screw cap 3 are in threaded connection through the third external thread 24 and the first internal thread 31. As shown in fig. 9, 15 and 16, the fixing sleeve 2 'of the second embodiment is provided with a second internal thread 24', the screw cap 3 'is provided with a fourth external thread 31', and the fixing sleeve 2 'and the screw cap 3' are screwed together by the second internal thread 24 'and the fourth external thread 31'.

After the precast pile is transported to a construction site, three anchor pieces (51, 51 ') are clamped by the clamp spring rings (4, 4 ') during installation to form a complete clamping cylinder (5, 5 '), then the complete clamping cylinder is placed into the fixing sleeve (2, 2 '), the anchor pieces (51, 51 ') are screwed and propped by the screw caps (3, 3 '), then the assembled fixing sleeve is screwed into an end plate screw hole of a lower pile or a sleeve for tensioning of an endless plate precast pile, at the moment, the fixing seat of the fastening screw rod is screwed into an end plate screw hole of an upper pile or a sleeve for tensioning of the endless plate precast pile, the upper pile is lifted when the assembly is finished, the upper pile is simply inserted by aiming at the port of the fixing sleeve (2, 2 '), and the engaging parts (14, 14 ') on the fastening screw rod (1, 1 ') are locked by the clamp spring rings (4, 4 ') and the anchor pieces (51, 51 ') so as to achieve the purpose of pile connection.

Correspondingly, the utility model also discloses a precast pile connection structure, including above-mentioned precast pile mechanical joint, upper segment stake and lower segment stake, the upper segment stake is equipped with the sleeve, the lower segment stake is equipped with the lower sleeve, fixing base (11, 11 ') can dismantle with the upper sleeve and be connected, fixed cover (2, 2') can dismantle with the lower sleeve and be connected. Preferably, the fixed seat (11, 11 ') is in threaded connection with the upper sleeve, and the fixed sleeve (2, 2') is in threaded connection with the lower sleeve. This precast pile connection structure is applicable to no end plate precast pile. The structure of the mechanical joint of the precast pile is as described above, and is not described in detail herein.

Correspondingly, as shown in fig. 2, the utility model also discloses a precast pile connection structure, including above-mentioned precast pile mechanical joint, upper segment stake 100 and lower segment stake 200, upper segment stake 100 is equipped with upper end plate 101, lower segment stake 200 is equipped with lower end plate 201, upper end plate 101 and lower end plate 201 set up relatively, upper end plate 101 is equipped with mounting hole (not shown in the figure), lower end plate 201 is equipped with lower mounting hole (not shown in the figure), fixing base 11 can dismantle with last mounting hole and be connected, fixed cover 2 can dismantle with lower mounting hole and be connected. The lower mounting hole and the upper mounting hole are screw holes. Preferably, the fixing seat 11 is in threaded connection with the upper mounting hole, and the fixing sleeve 2 is in threaded connection with the lower mounting hole. This precast pile connection structure is applicable to and takes end plate precast pile. The structure of the mechanical joint of the precast pile is as described above, and is not described in detail herein. The upper mounting hole of the upper end plate and the lower mounting hole of the lower end plate are both already set during production of the end plate, and additional punching is not needed at a construction and installation site.

After the precast pile is transported to a construction site, during installation, three anchor pieces 51 are clamped by a clamp spring ring 4 to form a complete clamping cylinder 5, then the clamping cylinder is placed into a fixed sleeve 2, a screw cover 3 is used for screwing and supporting the anchor pieces 51, the assembled fixed sleeve 2 is screwed into a screw hole 201 of a lower end plate 200 of a lower section pile or a sleeve for tensioning an upper section pile without an end plate, at the moment, a fixed seat 11 of a fastening screw rod 1 is screwed into a screw hole 101 of an upper end plate 200 of the upper section pile or a sleeve for tensioning the lower section pile without the end plate, the upper section pile 100 is lifted when the assembly is finished, the end of the fixed sleeve 2 is simply aligned to be inserted, and a meshing part 14 on the fastening screw rod 1 is locked by the clamp spring ring 4 and the anchor pieces 51 to achieve the purpose of pile connection. The installation degree of difficulty is low, and the installation rate is fast, and the construction is simple and convenient swift, is applicable to all pile types, if take the end plate and do not take the end plate precast pile. The tensile strength of the whole mechanical joint is high, and the comprehensive cost is lower than that of other types of mechanical joints.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A mechanical joint of a precast pile is characterized by comprising a fastening screw rod, a clamping component and a clamping component, wherein the fastening screw rod comprises a fixed seat and an insertion rod,

2. The mechanical precast pile joint as recited in claim 1, wherein the inserted rod comprises a clamping portion and an engaging portion, the clamping portion is adapted to the sleeve cavity, and the outer wall of the engaging portion is provided with a first engaging tooth.

3. The mechanical connector for precast piles according to claim 2, wherein the inner wall of the anchor piece is provided with a second engaging tooth, and the inserted rod and the clamping cylinder are engaged and connected through the first engaging tooth and the second engaging tooth.

4. A mechanical joint for precast piles as recited in claim 1, wherein the fixing base is provided with a first external thread, and the fixing sleeve is provided with a second external thread.

5. The mechanical connector for precast piles according to claim 1, wherein the locking assembly further comprises a screw cap fixedly disposed at an end of the fixed sleeve, a limiting member is disposed on an inner wall of the sleeve cavity, one end of the locking cylinder abuts against the limiting member, and the other end abuts against the screw cap, so that the locking cylinder and the fixed sleeve are axially and relatively fixed.

6. The precast pile mechanical joint as recited in claim 5, wherein the fixing sleeve is provided with a third external thread, the screw cap is provided with a first internal thread, and the fixing sleeve and the screw cap are in threaded connection through the third external thread and the first internal thread;

7. The mechanical connector for precast piles according to claim 1, wherein the clamping cylinder is formed by splicing three anchor pieces along the circumferential direction of the clamping cylinder.

8. A precast pile mechanical joint as recited in any of claims 1-7, wherein said anchor segments are of the same size and shape; the lateral wall of anchor piece is equipped with the jump ring groove, the jump ring circle inlays in the jump ring groove.

9. A precast pile connecting structure, comprising a precast pile mechanical joint, an upper pile and a lower pile according to any one of claims 1 to 8, wherein the upper pile is provided with an upper sleeve, the lower pile is provided with a lower sleeve, the fixing base is detachably connected with the upper sleeve, and the fixing sleeve is detachably connected with the lower sleeve.

10. A precast pile connecting structure, comprising a precast pile mechanical joint, an upper pile and a lower pile according to any one of claims 1 to 8, wherein the upper pile is provided with an upper end plate, the lower pile is provided with a lower end plate, the upper end plate and the lower end plate are arranged oppositely, the upper end plate is provided with an upper mounting hole, the lower end plate is provided with a lower mounting hole, the fixing seat is detachably connected with the upper mounting hole, and the fixing sleeve is detachably connected with the lower mounting hole.