Embedded anchor head locking device

Abstract

The utility model relates to the technical field of building construction, and discloses an embedded anchor head locking device which comprises a main anchor head, a conical groove is formed in the inner wall of the main anchor head, a conical block is connected to the inner wall of the conical groove in a sliding mode, and a U-shaped spring piece is fixedly connected to the middle of the inner wall of the conical groove. A plurality of clamping grooves are formed in the positions, close to the edge, of the inner wall of the conical groove, a second sliding groove is formed in the outer wall of the conical block, a clamping jaw is rotationally connected to the inner wall of the second sliding groove, a sealing sleeve is arranged on the outer wall of the main anchor head, and a mounting block is fixedly connected to the left side of the sealing sleeve. According to the anchor head, the conical block is inserted into the conical groove, the U-shaped spring piece is extruded to enable the two sides of the U-shaped spring piece to be inserted into the second sliding grooves, and therefore the clamping jaws are unfolded towards the two sides due to elastic force to be clamped with the clamping grooves to seal the clamping grooves, the effects of the environment on the connecting portion of the anchor head are reduced, safety is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, especially relate to a built-in anchor head locking device. BACKGROUND

[0002] Prestressed anchor cable is a kind of engineering material technology for reinforcing slope and foundation, which improves the stability and bearing capacity of structure by pre-stressing in rock mass and soil mass, and its main components are anchor cable body made of high-strength steel wire, steel strand and reinforcing bar to bear prestress, anchor head for applying prestress, and anchor device for connecting anchor cable body and outer anchor head to apply prestress, and in the installation process of prestressed anchor cable, it needs to be installed according to construction steps, the installation of prestressed anchor cable, first, according to the design requirements, drill holes in the rock mass and soil mass needing to be reinforced, then insert the anchor cable body into the drill hole and ensure its correct position, finally anchor the anchor cable body at the inner anchor head, so that the stress distribution inside the rock mass and soil mass is improved, and the overall stability and bearing capacity of structure are improved.

[0003] And the reliability and stability of prestressed anchor cable are very important in construction, the existing anchor head mostly adopts exposed anchor head design, which realizes locking through the way of nut and wedge, this design will be affected by environmental factors in long-term use, causing it to be corroded and loose, so that the stability of the whole prestressed structure is damaged, leading to slope instability and building collapse, reducing its safety and service life, and after the installation of prestressed anchor cable, special lubricant needs to be applied on the contact surface to reduce friction, and the existing construction scheme mostly adopts manual lubrication after installation, which reduces construction efficiency and increases labor cost. UTILITARIAN CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a built-in anchor head locking device, which aims at improving the problem that the design of anchor head in the prior art will be affected by environmental factors in long-term use, causing it to be corroded and loose, so that the stability of the whole prestressed structure is damaged, reducing its safety.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a built-in anchor head locking device, including main anchor head, the inner wall of main anchor head is provided with the taper slot, the inner wall of taper slot is slidably connected with the taper block, the middle part of the inner wall of taper slot is fixedly connected with the U spring piece, the inner wall of taper slot is provided with a plurality of clamping grooves near the edge, the outer wall of taper block is provided with the sliding groove two, the inner wall of sliding groove two is rotatably connected with the pawl, the outer wall of main anchor head is provided with the sealing sleeve, the left side of sealing sleeve is fixedly connected with the mounting block, the inner wall of sealing sleeve is rotatably connected with the rotating shaft, the bottom of taper block is fixedly connected with the vice anchor head, the inner wall of U spring piece is provided with the mounting groove, the top of the inner wall of taper slot is fixedly connected with the self -lubricating structure, the self -lubricating structure is used to the self -lubricating of device.

[0006] Through the above technical scheme: the taper slot is used for being attached with the taper block, thereby being clamped into the main anchor head, the clamping groove is used for being engaged with the pawl, and the U spring piece is used for being inserted into the sliding groove two, thereby using the elastic force of itself, the pawl is pushed to be clamped into the clamping groove, the vice anchor head fixed with the taper block is connected with the main anchor head, the sealing sleeve is used for protecting the connecting part of vice anchor head and main anchor head, avoids being influenced by outside environment, and the rotating shaft is used for opening and closing the sealing sleeve, and the user is convenient to install.

[0007] As further description of the above technical scheme:

[0008] The self-lubricating structure includes an extrusion rod, the top end of the extrusion rod is fixedly connected with the inner wall of the taper slot, the inner wall of the taper block is provided with a sliding groove one, a plurality of flow guide grooves are formed in the middle part of the outer wall of the taper block, an extrusion hole is formed in the top part of the inner wall of the sliding groove one, a limiting groove is formed in the middle part of the inner wall of the sliding groove one, a hollow column is slidably connected with the inner wall of the sliding groove one, the bottom end of the hollow column is fixedly connected with a return spring, and a plurality of flow guide holes are formed in the outer wall of the hollow column.

[0009] Through the above technical scheme: the extrusion rod is used for pushing the hollow column, so that the hollow column extrudes the return spring, and then the flow guide holes on the hollow column are aligned with the flow guide grooves, the extrusion hole enables the extrusion rod to enter the sliding groove one and extrude the hollow column, and the limiting groove is used to ensure that the hollow column does not rotate when moving up and down, so that the lubricating liquid in the hollow column cannot flow out.

[0010] As further description of the above technical scheme:

[0011] The bottom end of the extrusion rod is fixedly connected with a first rubber pad, and the bottom end of the first rubber pad is attached to the top end of the hollow column.

[0012] Through the above technical scheme: the first rubber pad avoids the direct contact between the metal part of the extrusion rod and the top of the hollow column, and the outer wall causes damage.

[0013] As a further description of the above technical solutions:

[0014] The outer end of the main anchor head and the auxiliary anchor head is fixedly connected with an anchor pad plate, and the inner wall of the mounting groove is in sliding connection with the outer wall of the conical block.

[0015] Through the above technical solutions: the anchor pad plate is used for connecting the steel bars for applying prestress.

[0016] As a further description of the above technical solutions:

[0017] The outer wall of the anchor pad plate is fixedly connected with a nameplate, and the inner wall of the nameplate is in threaded connection with a plurality of first screws.

[0018] Through the above technical solutions: the nameplate is used for facilitating the user to understand the related information of the device.

[0019] As a further description of the above technical solutions:

[0020] Both ends of the sealing sleeve are fixedly connected with sealing rings, and the inward side of the mounting block is fixedly connected with a sealing gasket.

[0021] Through the above technical solutions: the sealing ring is used for improving the sealing performance of the upper and lower ends of the sealing sleeve, and avoiding the erosion of the internal structure by external rainwater.

[0022] As a further description of the above technical solutions:

[0023] The inner wall of the mounting block is in threaded connection with a plurality of second screws, the outer wall of the second screw is provided with a gasket, and the inner wall of the gasket is in sliding connection with the outer wall of the second screw.

[0024] Through the above technical solutions: the gasket is used for avoiding the direct contact between the second screw and the outer wall of the mounting block, causing abrasion, and simultaneously increasing the friction force to avoid loosening of the second screw.

[0025] As a further description of the above technical solutions:

[0026] The plurality of clamping claws are rotationally connected at the same horizontal height, and the outer wall of the clamping claw is in abutment with the inner wall of the clamping groove.

[0027] Through the above technical solutions: the clamping claws at the same horizontal height ensure the stability of the entire structure installation.

[0028] The utility model has the advantages of:

[0029] 1. The utility model discloses a sealing sleeve is rotated along the rotating shaft, is sealed to the connecting place of main anchor head and vice anchor head, has reached the influence of reducing environment to anchor head connecting portion, has improved security, has prolonged the life.

[0030] 2. The utility model discloses a hollow column extrusion slip groove no. When the conical block is inserted into the conical groove, the extruding rod will be inserted into the extruding hole at the same time, so that the hollow column extrudes slip groove no. And along the orientation of the limiting groove and moves down until installation is completed, at this time, the flow guide hole coincides with the flow guide groove, so that the lubricating liquid in the hollow column flows out through the flow guide groove, lubricates the fit of the conical groove and the conical block, and the purpose of self-lubrication during anchor head installation is achieved, which speeds up the construction efficiency and improves the practicality. DRAWINGS

[0031] Figure 1 It is a front side perspective drawing of the embedded anchor head locking device.

[0032] Figure 2 It is a partial structure schematic view of the embedded anchor head locking device.

[0033] Figure 3 It is a cross-sectional view of the extruding rod of the embedded anchor head locking device.

[0034] Figure 4 It is a partial structure display view of the embedded anchor head locking device.

[0035] Figure 5 It is a cross-sectional view of the flow guide groove of the embedded anchor head locking device.

[0036] Figure 6 It is an enlarged view of A of the embedded anchor head locking device. Figure 5

[0037] Legend:

[0038] 1, main anchor head; 2, self-lubricating structure; 201, extruding rod; 202, flow guide groove; 203, return spring; 204, slip groove no. 205, flow guide hole; 206, limiting groove; 207, extruding hole; 208, hollow column; 3, vice anchor head; 4, sealing sleeve; 5, mounting block; 6, rotating shaft; 7, first rubber pad; 8, conical groove; 9, U-shaped spring piece; 10, mounting groove; 11, clamping groove; 12, clamping claw; 13, slip groove no. 2; 14, conical block; 15, anchor pad; 16, nameplate; 17, first screw; 18, gasket; 19, sealing ring; 20, second screw; 21, sealing pad.​ DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0040] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 3 An embodiment provided by the utility model: a kind of embedded anchor head locking device, the inner wall of main anchor head 1 is provided with taper slot 8, main anchor head 1 is used to bear and exert prestress, the inner wall of taper slot 8 is slidably connected with tapered block 14, the middle part of the inner wall of taper slot 8 is fixedly connected with U spring leaf 9, the taper slot 8 is used to cooperate with tapered block 14 to install the whole structure, the inner wall of taper slot 8 is provided with multiple clamping grooves 11 near edge, the outer wall of tapered block 14 is provided with sliding groove two 13, the inner wall of sliding groove two 13 is rotatably connected with pawl 12, pawl 12 is used to be clamped into clamping groove 11 to fix the whole structure, U spring leaf 9 is used to push pawl 12 to spread to both sides by using its elastic force, the outer wall of main anchor head 1 is provided with sealing sleeve 4, the left side of sealing sleeve 4 is fixedly connected with mounting block 5, sealing sleeve 4 is used to protect the connecting part of main anchor head 1, the inner wall of sealing sleeve 4 is rotatably connected with rotating shaft 6, the bottom of tapered block 14 is fixedly connected with vice anchor head 3, vice anchor head 3 is used to cooperate with main anchor head 1 to install the whole structure, the inner wall of U spring leaf 9 is provided with mounting groove 10, mounting groove 10 is used to make tapered block 14 can pass through it to enter into taper slot 8 without causing extrusion to both sides of U spring leaf 9, the top of the inner wall of taper slot 8 is fixedly connected with self-lubricating structure 2, self-lubricating structure 2 is used for self-lubricating of the device, multiple pawls 12 are rotatably connected at the same horizontal height, the pawl 12 at the same horizontal height ensures the stability of the whole mechanism after installation;

[0041] Specifically, main anchor head 1 and vice anchor head 3 are used to connect and bear the prestress of the whole structure, taper slot 8 is used to ensure that tapered block 14 can be embedded therein, U spring leaf 9 is used to be inserted into sliding groove two 13, so as to push pawl 12 to spread to both sides by using its elastic force to be clamped into clamping groove 11, sealing sleeve 4 is used to cover the part connected by main anchor head 1 and vice anchor head 3, so as to ensure that external environmental factors will not affect its connection, mounting block 5 is used to fix sealing sleeve 4, so that it cannot rotate along rotating shaft 6 to open and close any more, which improves the sealing performance therein, the pawl 12 at the same horizontal height further ensures the stability of installation.

[0042] Please refer to the attached drawings Figure 4 - the attached drawings Figure 6 , the self-lubricating structure 2 comprises an extrusion rod 201, the top end of the extrusion rod 201 is fixedly connected with the inner wall of the tapered groove 8, the extrusion rod 201 is used for extruding the structure downward with the installation, the inner wall of the tapered block 14 is provided with a sliding groove one 204, the outer wall of the tapered block 14 is provided with a plurality of flow guide grooves 202 in the middle, the flow guide grooves 202 are used for guiding the lubricating liquid to flow outwards for lubrication, the inner wall of the sliding groove one 204 is provided with an extrusion hole 207 at the top, the inner wall of the sliding groove one 204 is provided with a limiting groove 206 in the middle, the extrusion hole 207 is used for enabling the extrusion rod 201 to extend into the sliding groove one 204, the hollow column 208 is slidingly connected with the inner wall of the sliding groove one 204, the bottom end of the hollow column 208 is fixedly connected with the reset spring 203, the hollow column 208 is used for loading the lubricating liquid for the device, the outer wall of the hollow column 208 is provided with a plurality of flow guide holes 205, the bottom end of the first rubber pad 7 is fixedly connected with the top end of the hollow column 208, the first rubber pad 7 is used for buffering the contact between the top end of the hollow column 208 and the bottom end of the extrusion rod 201;

[0043] Specifically, the extrusion rod 201 is used for extending into the sliding groove one 204 through the extrusion hole 207 with the installation, extruding the hollow column 208, so that the reset spring 203 is elastically deformed, enabling the hollow column 208 to move downward along the sliding groove one 204, after the installation is completed, the flow guide hole 205 will coincide with the flow guide groove 202, so that the lubricating liquid in the hollow column 208 can flow out, the first rubber pad 7 buffers the contact between the bottom end of the hollow column 208 and the extrusion rod 201, so as to avoid the damage of the structure caused by the rapid contact extrusion.

[0044] Please refer to the attached drawings Figure 3 - the attached drawings Figure 5 , the outer wall of the clamping jaw 12 is in close contact with the inner wall of the clamping groove 11, the sealing sleeve 4 is fixedly connected with a sealing ring 19 at both ends, the sealing ring 19 further improves the sealing performance of the upper and lower ends of the sealing sleeve 4, avoiding the erosion of external factors to the structure in the sealing ring 19, the inward side of the mounting block 5 is fixedly connected with a sealing pad 21, the outward end of the main anchor head 1 and the vice anchor head 3 is fixedly connected with an anchor pad 15, the sealing pad 21 is used to improve the sealing performance of the mounting block 5, avoiding rainwater from entering the sealing sleeve 4 through the mounting block 5 to cause damage to the internal structure, the inner wall of the mounting groove 10 is slidingly connected with the outer wall of the tapered block 14, the anchor pad 15 is used for mounting and fixing the steel bar bearing prestressed force;

[0045] Specific, the sealing ring 19 further improves the sealing of the upper and lower end of the sealing sleeve 4, to avoid the outside of the rain into the sealing sleeve 4, the structure of the corrosion, sealing pad 21 is to improve the friction of the contact surface of the mounting block 5, to avoid the rain from here to penetrate into the structure, anchor pad 15 is used to connect for bearing pre-stressed reinforcement.

[0046] Please refer to the attached Figure 2 - attached Figure 4 , the inner wall of the mounting block 5 is threadedly connected with a plurality of second screws 20, the outer wall of the second screw 20 is provided with a gasket 18, the second screw 20 is used for fixing the mounting block 5, the inner wall of the gasket 18 is in sliding connection with the outer wall of the second screw 20, the outer wall of the anchor pad 15 is fixedly connected with a nameplate 16, the inner wall of the nameplate 16 is threadedly connected with a plurality of first screws 17, the nameplate 16 is used to help the user understand the related information of the device;

[0047] Specific, the second screw 20 is used to stabilize the mounting block 5, so as to avoid the sealing sleeve 4 from rotating to open, the nameplate 16 is used to help the user understand the related information of the device, the first screw 17 is used to fix the nameplate 16 at the desired position, so as to ensure that the user can quickly observe the nameplate 16, and the gasket 18 is used to improve the friction between the second screw 20 and the outer wall of the mounting block 5, so as to avoid loosening due to long-term use.

[0048] Working principle: when installing, first insert the tapered block 14 into the tapered groove 8, so that the U-shaped spring plate 9 is inserted into the sliding groove 13, and is pressed to the two sides due to the elastic force, so that the pawl 12 is rotated and expanded, and is clamped into the clamping groove 11, after confirming that the installation is firm, rotate the sealing sleeve 4 along the rotating shaft 6 to open it, and wrap it around the connection between the main anchor head 1 and the auxiliary anchor head 3, and rotate the second screw 20 to threadedly fix the sealing pad 21, so as to ensure that the sealing sleeve 4 cannot be rotated to open and seal.

[0049] When installing, the tapered block 14 enters the tapered groove 8 at the same time, and the extrusion rod 201 also inserts into the extrusion hole 207, so as to extrude the hollow column 208, so as to further extrude the reset spring 203 and move downward along the limiting groove 206, until the installation is completed, the flow guide hole 205 also coincides with the flow guide groove 202, so that the lubricating liquid stored in the hollow column 208 flows into the connection between the tapered groove 8 and the tapered block 14 through the flow guide groove 202, to lubricate.

[0050] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An in-line anchor head locking device comprising a main anchor head (1), characterized in that: The inner wall of the main anchor head (1) is provided with a tapered groove (8), the inner wall of the tapered groove (8) is slidably connected with a tapered block (14), the inner wall of the tapered groove (8) is fixedly connected with a U-shaped spring piece (9) in the middle, a plurality of clamping grooves (11) are formed in the inner wall of the tapered groove (8) near the edge, the outer wall of the tapered block (14) is provided with a sliding groove two (13), the inner wall of the sliding groove two (13) is rotatably connected with a clamping claw (12), the outer wall of the main anchor head (1) is provided with a sealing sleeve (4), the left side of the sealing sleeve (4) is fixedly connected with a mounting block (5), the inner wall of the sealing sleeve (4) is rotatably connected with a rotating shaft (6), the bottom of the tapered block (14) is fixedly connected with a secondary anchor head (3), the inner wall of the U-shaped spring piece (9) is provided with a mounting groove (10), the inner wall of the tapered groove (8) is fixedly connected with a self-lubricating structure (2) at the top, and the self-lubricating structure (2) is used for self-lubricating the device.

2. An in-line anchor locking device according to claim 1, wherein: The self-lubricating structure (2) comprises an extrusion rod (201), the top end of the extrusion rod (201) is fixedly connected with the inner wall of the tapered groove (8), the inner wall of the tapered block (14) is provided with a sliding groove one (204), a plurality of flow guide grooves (202) are formed in the middle of the outer wall of the tapered block (14), the inner wall of the sliding groove one (204) is provided with an extrusion hole (207) at the top, the inner wall of the sliding groove one (204) is provided with a limiting groove (206) in the middle, the inner wall of the sliding groove one (204) is slidably connected with a hollow column (208), the bottom end of the hollow column (208) is fixedly connected with a return spring (203), and the outer wall of the hollow column (208) is provided with a plurality of flow guide holes (205).

3. An in-line anchor locking device according to claim 2, wherein: The bottom end of the extrusion rod (201) is fixedly connected with a first rubber pad (7), and the bottom end of the first rubber pad (7) is attached to the top end of the hollow column (208).

4. An in-line anchor locking device according to claim 1, wherein: The outward end of the main anchor head (1) and the secondary anchor head (3) is fixedly connected with an anchor pad (15), and the inner wall of the mounting groove (10) is slidably connected with the outer wall of the tapered block (14).

5. An in-line anchor locking device according to claim 4, wherein: The outer wall of the anchor pad (15) is fixedly connected with a nameplate (16), and the inner wall of the nameplate (16) is threadedly connected with a plurality of first screws (17).

6. An in-line anchor locking device according to claim 1, wherein: Both ends of the sealing sleeve (4) are fixedly connected with a sealing ring (19), and the inward side of the mounting block (5) is fixedly connected with a sealing pad (21).

7. An in-line anchor locking device according to claim 1, wherein: The inner wall of the mounting block (5) is threadedly connected with a plurality of second screws (20), the outer wall of the second screw (20) is provided with a gasket (18), and the inner wall of the gasket (18) is slidably connected with the outer wall of the second screw (20).

8. An in-line anchor locking device according to claim 1, wherein: A plurality of clamping claws (12) are rotatably connected at the same horizontal height, and the outer wall of the clamping claw (12) is attached to the inner wall of the clamping groove (11).

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