Concrete embedded anchor rod piece

Abstract

The utility model discloses a concrete pre-embedded anchor rod piece which comprises a pre-embedded plate and a plurality of anchor rods, the anchor rod assembly comprises a positioning anchor rod connected with the pre-buried plate, an inner cavity is formed in the upper end of the positioning anchor rod, and a movable positioning sleeve is arranged at the upper end of the inner cavity; the lower end of the screw main body is movably positioned in the inner cavity, and the upper end penetrates through the positioning sleeve and extends to the outer side of the pre-embedded plate; the first elastic piece is located in the inner cavity, and the upper end and the lower end of the first elastic piece are connected with the positioning sleeve and the lower end of the screw body correspondingly; and when the force, acting on the positioning sleeve, of the first elastic piece reaches a certain value, the positioning sleeve is separated from the inner cavity. The screw rod body is located in the inner cavity of the positioning anchor rod in a sliding mode, the first elastic piece is compressed, and the positioning sleeve can be separated from the inner cavity under the condition that the positioning sleeve bears certain acting force of the first elastic piece, so that proper buffering of the screw rod body is achieved, damage between the positioning anchor rod and a concrete supporting foundation is effectively avoided, and the service life of the positioning anchor rod is prolonged. And the screw main body can be conveniently mounted again, and the universality is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to a concrete embedded anchor rod part. Background Art

[0002] The embedded anchor rod is to connect the anchor rod with the embedded plate during the construction process and embed it into the concrete of the foundation pit for the anchoring of the support foundation;

[0003] When the existing embedded anchor rod fixes the support foundation, the following problems exist: 1. It cannot perform proper buffering; taking the support foundation of the guardrail on the road as an example, when using the traditional embedded anchor rod to fix the support foundation of the guardrail base, when a car hits the guardrail, although the fixed guardrail can block the car to prevent the vehicle from rushing into the oncoming lane, the huge impact will cause damage to the overall support foundation of the guardrail, and additional repair is required; 2. Poor practicability, unable to be adjusted according to different use environments; taking the support foundation of the guardrail on the road as an example, the number of guardrails is large and they are arranged at intervals. When all the guardrails adopt buffer structures, the overall structural strength may decrease, that is, fixed support foundations need to be used at appropriate positions, and anchor rods with different structures need to be used, resulting in a decrease in practicability. Summary of the Invention

[0004] The purpose of the utility model is to provide a concrete embedded anchor rod part, which has a simple and compact structure, realizes the proper buffering of the screw body, effectively avoids the damage between the positioning anchor rod and the concrete support foundation, facilitates the reinstallation of the screw body, and has stronger versatility.

[0005] To achieve the above purpose, the concrete embedded anchor rod part of the present utility model includes:

[0006] An embedded plate;

[0007] An anchor rod assembly, including:

[0008] A positioning anchor rod, connected to the embedded plate, with an inner cavity at the upper end, and a movable positioning sleeve at the upper end of the inner cavity;

[0009] A screw body, with the lower end moving inside the inner cavity and the upper end passing through the positioning sleeve and extending outside the embedded plate;

[0010] A first elastic member, located inside the inner cavity, with the upper and lower ends of the first elastic member respectively connected to the positioning sleeve and the lower end of the screw body;

[0011] Wherein, when the force exerted by the first elastic member on the positioning sleeve reaches a certain value, the positioning sleeve disengages from the inner cavity.

[0012] In some examples of the present utility model, an annular groove is provided on the circumferential side of the positioning sleeve;

[0013] The upper end of the positioning anchor rod is provided with a positioning rod that is elastically embedded in the annular groove and can be disengaged from the annular groove.

[0014] In some examples of the present utility model, the upper end of the positioning anchor rod is provided with a through hole arranged radially, and the through hole forms a cavity through the first support block and the second support block;

[0015] The positioning rod is slidably located in the cavity, and a second elastic member is sleeved in the middle;

[0016] Wherein, under the action of the second elastic member, one end of the positioning rod is elastically embedded in the annular groove.

[0017] In some examples of the present utility model, there are multiple annular grooves, which are arranged at intervals along the axis of the positioning sleeve;

[0018] One end of the positioning rod facing the annular groove is of a semi-circular structure.

[0019] In some examples of the present utility model, it further includes: a lining plate;

[0020] At least one first strip-shaped groove is provided on the positioning sleeve, and the first strip-shaped groove communicates with the inner cavity;

[0021] Wherein, the lining plate opens and closes the first strip-shaped groove.

[0022] In some examples of the present utility model, the lining plate is rotatably connected to the positioning anchor rod;

[0023] When the lining plate rotates, it can close and open the first strip-shaped groove.

[0024] In some examples of the present utility model, the lining plate is an arc-shaped plate and is attached to the circumferential side of the positioning sleeve, and the length and width of the arc-shaped plate are not less than the length and width of the first strip-shaped groove.

[0025] In some examples of the present utility model, the lining plate is of a sleeve structure and is provided with a second strip-shaped groove;

[0026] When the lining plate rotates, the second strip-shaped groove on the lining plate and the first strip-shaped groove are staggered and closed to each other, or are docked and opened to each other.

[0027] In some examples of the present utility model, the length of the first strip-shaped groove is arranged along the axis of the positioning anchor rod, and the upper end is not lower than the positioning sleeve.

[0028] Compared with the prior art, the concrete embedded anchor rod can slide through the screw body inside the inner cavity of the positioning anchor rod and compress the first elastic member. When the positioning sleeve bears a certain acting force of the first elastic member, it can disengage from the inner cavity, thus realizing the proper buffering of the screw body, effectively avoiding the damage between the positioning anchor rod and the concrete support foundation, facilitating the reinstallation of the screw body, and having stronger versatility. In addition, there are multiple annular grooves, and the positioning rod can act on different annular grooves according to the usage situation, enabling the screw body to have stage buffering, being applicable to different impact movements, and meeting different usage environments.

[0029] Since at least one first strip-shaped groove is provided on the positioning sleeve and the lining plate can open and close the first strip-shaped groove, the switching between the anchoring and buffering of the screw body can be realized, with strong practicability and being adjustable according to different usage environments. Brief Description of the Drawings

[0030] Figure 1 is the overall front view of the present utility model;

[0031] Figure 2 is the assembly schematic diagram between the positioning anchor rod and the lining plate in the present utility model;

[0032] Figure 3 is the schematic diagram of the positioning sleeve in the present utility model;

[0033] Figure 4 is Figure 1 the front view of position A in

[0034] In the figure: 10, embedded plate; 11, screw body;

[0035] 20, positioning anchor rod; 21, inner cavity; 22, first strip-shaped groove; 23, through hole;

[0036] 30, lining plate; 31, second strip-shaped groove;

[0037] 40, positioning sleeve; 41, annular groove;

[0038] 50, first elastic member;

[0039] 61, positioning rod; 62, second elastic member; 63, first support block; 64, second support block. Detailed Description of the Embodiment

[0040] In order to make the objectives, technical solutions and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present utility model. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0041] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present utility model pertains. The "first", "second" and similar terms used in the description of the present utility model patent application specification and claims do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not necessarily denote a quantity limitation. The terms "comprising" or "including" and similar words mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connected" or "coupled" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0042] As Figure 1 、 Figure 4 shown, the present concrete embedded anchor member includes:

[0043] An embedded plate 10;

[0044] An anchor rod assembly, including:

[0045] A positioning anchor rod 20, connected to the embedded plate 10, having an inner cavity 21 at the upper end, and a positioning sleeve 40 movably installed at the upper end of the inner cavity 21;

[0046] A screw rod main body 11, the lower end thereof is movably located in the inner cavity 21, and the upper end thereof passes through the positioning sleeve 40 and extends to the outside of the embedded plate 10;

[0047] A first elastic member 50, located in the inner cavity 21, the upper and lower ends of the first elastic member 50 are respectively connected to the positioning sleeve 40 and the lower end of the screw rod main body 11;

[0048] Wherein, when the force exerted by the first elastic member 50 on the positioning sleeve 40 reaches a certain value, the positioning sleeve 40 disengages from the inner cavity 21;

[0049] Specifically, the embedded plate 10 is a traditional plate member, i.e., made of steel material. Its shape can be rectangular or circular, and its thickness is determined according to the use environment, such as 10 - 30 mm.

[0050] The anchor rod assembly is configured to support the anchoring of the foundation; the positioning anchor rod 20 can be fixedly connected to the embedded plate 10 at the upper end. The overall size of the positioning anchor rod 20 is larger than that of the traditional embedded anchor rod to ensure that the screw body 11 can be installed. The depth of the inner cavity 21 of the positioning anchor rod 20 is determined according to the overall length of the positioning anchor rod 20 and the use environment.

[0051] The lower end of the screw body 11 can compress the first elastic member 50, so that the upper end of the first elastic member 50 acts on the positioning sleeve 40 in the inner cavity 21; the positioning sleeve 40 is movably installed on the inner cavity 21, and this movement means that the positioning sleeve 40 can withstand a certain force and can move axially along the inner cavity 21 when the force is large.

[0052] The first elastic member 50 can be a cylindrical spring and is sleeved on the screw body 11.

[0053] Place this concrete embedded anchor rod member in the foundation pit filled with concrete. The positioning anchor rod 20 is in direct contact with the concrete and is used for anchoring. The upper end of the screw body 11 passes through the positioning sleeve 40 and extends to the outside of the embedded plate 10 for connecting, supporting, and fixing with building components.

[0054] When the screw body 11 is locked and fixed, the lower end moves axially to compress the first elastic member 50. Under the condition of ensuring that the positioning sleeve 40 does not move, the screw body 11 is connected and fixed to the building component.

[0055] When the building component is impacted, the screw body 11 compresses the first elastic member 50 under the action of the impact. The upper end of the first elastic member 50 acts on the positioning sleeve 40 for appropriate buffering. When the force borne by the positioning sleeve 40 reaches a certain level, the positioning sleeve 40 disengages from the inner cavity 21. At this time, the screw body 11 disengages from the positioning anchor rod 20, and appropriate buffering can be carried out to avoid damage between the positioning anchor rod 20 and the concrete support foundation.

[0056] When the screw body 11 needs to be replaced due to deformation or other reasons, the lower end of the screw body 11 can be sleeved with the first elastic member 50 and placed in the inner cavity 21 of the positioning anchor rod 20, and then the positioning sleeve 40 is placed back at the upper end of the inner cavity 21 for complete installation.

[0057] The concrete embedded anchor is located inside the inner cavity 21 of the positioning anchor 20 by sliding along the screw body 11, and compresses the first elastic member 50. When the positioning sleeve 40 bears a certain acting force of the first elastic member 50, it can disengage from the inner cavity 21, which not only realizes the proper buffering of the screw body 11, but also effectively avoids the damage between the positioning anchor 20 and the concrete support foundation, facilitating the reinstallation of the screw body 11 and having stronger versatility.

[0058] In some examples of the present utility model, as Figure 1 、 Figure 3 shown, an annular groove 41 is provided on the circumferential side of the positioning sleeve 40;

[0059] The upper end of the positioning anchor 20 is provided with a positioning rod 61 that is elastically embedded in the annular groove 41 and can disengage from the annular groove 41;

[0060] Specifically, the positioning anchor 20 is provided with an elastically arranged positioning rod 61;

[0061] In the initial state, one end of the positioning rod 61 is elastically embedded in the annular groove 41 to limit the positioning sleeve 40. Preferably, there are multiple positioning rods 61, which are circumferentially and evenly arranged, that is, multiple positioning rods 61 are all embedded in the annular groove 41;

[0062] When the screw body 11 compresses the first elastic member 50 such that the first elastic member 50 acts on the positioning sleeve 40, when the acting force borne by the positioning sleeve 40 reaches a certain level, the annular groove 41 squeezes the positioning rod 61 to make it elastically contract, so that the annular groove 41 disengages from the positioning rod 61.

[0063] In some examples of the present utility model, as Figure 1 、 Figure 4 shown, the upper end of the positioning anchor 20 is provided with a radially arranged through hole 23;

[0064] The through hole 23 forms a cavity through the first support block 63 and the second support block 64;

[0065] The positioning rod 61 slides inside the cavity and is sleeved with a second elastic member 62 in the middle;

[0066] Wherein, under the action of the second elastic member 62, one end of the positioning rod 61 is elastically embedded in the annular groove 41;

[0067] Specifically, the second support block 64 is located outside the through hole 23 for blocking the positioning rod 61, and the first support block 63 is located inside the through hole 23 for limiting the positioning rod 61;

[0068] The second elastic member 62 is a cylindrical spring, which is sleeved on the positioning rod 61. Under the action of the second elastic member 62, the positioning rod 61 acts inwardly on the positioning sleeve 40.

[0069] In some examples of the present utility model, such as Figure 1 , Figure 3 , Figure 4 shown, there are multiple annular grooves 41, which are arranged at intervals along the axis of the positioning sleeve 40;

[0070] One end of the positioning rod 61 facing the annular groove 41 is a semi-circular structure;

[0071] Specifically, one end of the positioning rod 61 is a semi-circular structure and can be matched with the annular groove 41 on the positioning sleeve 40, so that the positioning rod 61 can be embedded in or separated from the positioning sleeve 40;

[0072] The multiple annular grooves 41 are arranged at intervals along the axis. The purpose is to ensure that the positioning rod 61 can act in different annular grooves 41 according to the usage situation. For example, when the positioning rod 61 acts in the uppermost annular groove 41, the screw rod body 11 moves upward under impact, and the first elastic member 50 acts on the positioning sleeve 40. After the uppermost annular groove 41 of the positioning sleeve 40 is separated from the positioning rod 61, the lower annular groove 41 can then be matched and positioned with the positioning rod 61, which can be applicable to the small movement of the screw rod body 11 caused by a small impact. When the screw rod body 11 bears a large impact, none of the multiple annular grooves 41 can be matched and positioned with the positioning rod 61, and the screw rod body 11 moves greatly under the large impact and separates from the inner cavity 21;

[0073] In this example, by sequentially matching the multiple annular grooves 41 with the positioning rod 61, the screw rod body 11 can be buffered in stages, which is applicable to different impact movements and meets different usage environments.

[0074] In some examples of the present utility model, such as Figure 1 , Figure 2 shown, at least one first strip-shaped groove 22 is provided on the positioning sleeve 40;

[0075] The first strip-shaped groove 22 communicates with the inner cavity 21;

[0076] This concrete embedded anchor also includes: a lining plate 30 for opening and closing the first strip-shaped groove 22;

[0077] Specifically, the first strip-shaped groove 22 is configured to allow concrete to enter and anchor the inner cavity 21 of the positioning anchor 20;

[0078] The lining plate 30 is configured to open and close the first strip-shaped groove 22;

[0079] When it is necessary to improve the overall anchoring effect and the screw body 11 is fixedly connected without buffering, the lining plate 30 opens the first groove 22, and this concrete embedded anchor is placed in a foundation pit filled with concrete. The concrete can enter the inner cavity 21 from the first groove 22 and anchor the screw body 11 and the first elastic member 50 in the inner cavity 21. At this time, the screw body 11 is not used as a buffer, and the anchoring effect can be improved;

[0080] When the lining plate 30 closes the first groove 22, the concrete cannot enter the inner cavity 21 from the first groove 22. At this time, the screw body 11 can perform appropriate buffering;

[0081] For example, taking the support foundation of the guardrail on the road as an example, at the position where vehicle collisions do not occur frequently or at the position where the main support function is played, the lining plate 30 in this concrete embedded anchor opens the first groove 22, and the concrete enters the inner cavity 21 for overall anchoring, and the screw body 11 is a fixed support; at the position where vehicle collisions occur frequently or at the position where the auxiliary support function is played, the lining plate 30 in this concrete embedded anchor closes the first groove 22, and the concrete cannot enter the inner cavity 21, and the screw body 11 can perform appropriate buffering;

[0082] Therefore, in this example, by opening and closing the first groove 22 with the lining plate 30, the usage situation of the screw body 11 can be switched, which is more convenient.

[0083] In some examples of the present utility model, the lining plate 30 is rotatably connected to the positioning anchor 20;

[0084] When the lining plate 30 rotates, it can close and open the first groove 22;

[0085] Specifically, the lining plate 30 is rotatably installed on the positioning anchor 20, and the opening and closing of the lining plate 30 can be adjusted by rotation, which is more convenient.

[0086] As an embodiment of the lining plate 30, the lining plate 30 is an arc-shaped plate and is attached to the peripheral side of the positioning sleeve 40,

[0087] The length and width of the arc-shaped plate are not less than the length and width of the first groove 22;

[0088] As another embodiment of the lining plate 30, the lining plate 30 is a sleeve structure and is provided with a second groove 31;

[0089] When the lining plate 30 rotates, the second groove 31 on the lining plate 30 is staggered from and closed to, or docked with and opened to the first groove 22;

[0090] Specifically, the liner 30 may be an arc-shaped or sleeve-shaped structure. When the liner 30 is an arc-shaped structure, the liner 30 can directly open and close the first strip groove 22, that is, the size of the liner 30 is larger than the first strip groove 22, and it is ensured that the first strip groove 22 can be covered. This method has a simple structure and is suitable for use in environments where the concrete foundation pit is shallow or the anchoring requirements are not high.

[0091] When the liner 30 is a sleeve structure, when the liner 30 rotates, the second strip groove 31 thereon is connected with or staggered with the first strip groove 22. On the one hand, the opening size of the first strip groove 22 can be adjusted, and on the other hand, the sealing between the liner 30 and the positioning anchor rod 20 can be ensured. It is suitable for use in environments with deep concrete foundation pits or higher requirements for anchoring.

[0092] In some examples of the present invention, the length of the first strip-shaped groove 22 is arranged along the axial direction of the positioning anchor rod 20, and the upper end thereof is not lower than the positioning sleeve 40;

[0093] Specifically, this example is used to limit the length of the first strip groove 22, that is, the upper end of the first strip groove 22 is not lower than the positioning sleeve 40, so that the concrete can completely enter the inner cavity 21 from the first strip groove 22 to fix the screw body 11 and the positioning sleeve 40.

[0094] When the concrete pre-embedded anchor rod is used, firstly, according to the use requirements or environment, it is selected whether to close the first strip groove 22 on the positioning anchor rod 20, that is, when the concrete pre-embedded anchor rod is used normally and no buffering effect is performed, the liner 30 opens the first strip groove 22, and the concrete can smoothly enter the inner cavity 21 of the positioning anchor rod 20 from the first strip groove 22 to fix the screw body 11 and the positioning sleeve 40;

[0095] When the concrete embedded anchor rod performs buffering, the liner 30 seals the first strip groove 22, and the concrete cannot enter the inner cavity 21 of the positioning anchor rod 20 from the first strip groove 22. At this time, the screw rod body 11 performs elastic buffering, that is, the screw rod body 11 is connected and fixed to the building member while ensuring that the positioning sleeve 40 does not move.

[0096] When the building member is impacted, the screw body 11 compresses the first elastic member 50 under the action of the impact, and the upper end of the first elastic member 50 acts on the positioning sleeve 40 to perform appropriate buffering. When the positioning sleeve 40 is subjected to a certain force, the positioning sleeve 40 disengages from the inner cavity 21. At this time, the screw body 11 disengages from the positioning anchor rod 20, which can perform appropriate buffering and avoid damage between the positioning anchor rod 20 and the concrete support foundation.

[0097] The exemplary embodiments of the concrete embedded anchor proposed by the present utility model have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various modifications and variations can be made to the above specific embodiments, and various combinations can be made to the various technical features and structures proposed by the present utility model, without exceeding the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims.

Claims

1. Concrete embedded anchor, characterized in that, Comprising: Embedded plate (10); Anchor rod assembly, comprising: Positioning anchor rod (20), connected to the embedded plate (10), with an inner cavity (21) provided at the upper end, and a movable positioning sleeve (40) provided at the upper end of the inner cavity (21); Screw rod body (11), with the lower end moving and located inside the inner cavity (21), and the upper end passing through the positioning sleeve (40) and extending to the outside of the embedded plate (10); First elastic member (50), located inside the inner cavity (21), with the upper and lower ends of the first elastic member (50) respectively connected to the positioning sleeve (40) and the lower end of the screw rod body (11); Wherein, when the force exerted by the first elastic member (50) on the positioning sleeve (40) reaches a certain value, the positioning sleeve (40) disengages from the inner cavity (21).

2. The concrete embedded anchor rod member according to claim 1, wherein The circumferential side of the positioning sleeve (40) is provided with an annular groove (41); The upper end of the positioning anchor rod (20) is provided with a positioning rod (61) that is elastically embedded in the annular groove (41) and can disengage from the annular groove (41).

3. The concrete embedded anchor rod member according to claim 2, wherein The upper end of the positioning anchor rod (20) is provided with a through hole (23) arranged radially, and the through hole (23) forms a cavity through a first support block (63) and a second support block (64); The positioning rod (61) slides inside the cavity and is sleeved with a second elastic member (62) in the middle; Wherein, under the action of the second elastic member (62), one end of the positioning rod (61) is elastically embedded in the annular groove (41).

4. The concrete embedded anchor rod member according to claim 3, wherein There are multiple annular grooves (41), which are arranged at intervals along the axis of the positioning sleeve (40); One end of the positioning rod (61) facing the annular groove (41) is a semi-circular structure.

5. The concrete embedded anchor rod member according to any one of claims 1 to 4, wherein It further comprises: a lining plate (30); At least one first strip-shaped groove (22) is provided on the positioning sleeve (40), and the first strip-shaped groove (22) communicates with the inner cavity (21); Wherein, the lining plate (30) opens and closes the first strip-shaped groove (22).

6. The concrete embedded anchor rod member according to claim 5, wherein The lining plate (30) is rotatably connected to the positioning anchor rod (20); When the lining plate (30) rotates, it can close and open the first strip-shaped groove (22).

7. The concrete embedded anchor rod member according to claim 6, wherein The lining plate (30) is an arc-shaped plate and is attached to the circumferential side of the positioning sleeve (40), and the length and width of the arc-shaped plate are not less than the length and width of the first strip-shaped groove (22).

8. The concrete embedded anchor rod member according to claim 6, wherein The lining plate (30) is a sleeve structure and is provided with a second strip-shaped groove (31); When the lining plate (30) rotates, the second strip-shaped groove (31) on the lining plate (30) and the first strip-shaped groove (22) are mutually staggered and closed, or mutually docked and opened.

9. The concrete embedded anchor rod member according to claim 6, wherein The length of the first groove (22) is arranged along the axial direction of the positioning anchor rod (20), and the upper end is not lower than the positioning sleeve (40).

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