CN109440766B - A temperature-controlled anchor - Google Patents

Abstract

The application discloses a temperature control anchor rod, which comprises a rod body, wherein a cavity is formed in the rod body, a cone is formed in the bottom surface of the rod body, a support is arranged in the cavity, the support comprises an upper ring body, a lower ring body and a connecting column for connecting the upper ring body and the lower ring body, the lower ring body is collinear with the axis of the upper ring body, the diameter of the lower ring body is larger than or equal to that of the upper ring body, a bimetallic strip is connected between the edge of the upper ring body and the edge of the lower ring body, a limiting hole is formed in the outer wall of the rod body, a sliding rail is arranged at the bottom of the limiting hole, a limiting block is connected onto the sliding rail in a sliding manner, the middle part of the bimetallic strip is connected with the limiting block, when the bimetallic strip is in a normal temperature state, the middle part of the bimetallic strip protrudes in the direction away from the axis of the upper ring body, and when the bimetallic strip is in a heating state, the middle part of the bimetallic strip is retracted in the direction close to the axis direction of the upper ring body. The application solves the problems of the traditional anchor rod that the pulling resistance is not high enough and the repeated use is inconvenient.

Description

A temperature-controlled anchor

Technical field

The invention relates to an anchor rod, in particular to a temperature-controlled anchor rod.

Background technique

Traditional push-type anchors are used for slope protection, using the soil layer on the slope to reinforce the buildings on the slope, effectively improving the tensile strength of the building. The traditional anchor is only provided with a Threads are manually driven into the soil to utilize the friction between the soil and the threads to achieve reinforcement. However, the maximum static friction between the traditional anchors and the soil is not large enough, resulting in the traditional The pull-out resistance of the anchor rod is not large enough. In addition, the traditional anchor rod is not convenient for reuse.

Contents of the invention

The technical problem to be solved by the present invention is to solve the problem that the pull-out resistance of the traditional anchor rod is not high enough and it is inconvenient to reuse it.

The solution of the present invention to solve its technical problems is:

A temperature-controlled anchor includes a rod body, a cavity is provided in the rod body, a cone is provided on the bottom surface of the rod body, the bottom surface of the rod body is connected to the bottom surface of the cone, and a cavity is provided in the cavity. Bracket, the bracket includes an upper ring body, a lower ring body arranged below the upper ring body, and a connecting column connecting the upper ring body and the lower ring body, and the lower ring body and the lower ring body are The axes of the upper torus are collinear, the diameter of the lower torus is greater than or equal to the diameter of the upper torus, and the edge of the upper torus is connected to the edge of the lower torus. There is a bimetal piece. The outer wall of the rod body is provided with a limiting hole. The bottom of the limiting hole is provided with a slide rail. The slide rail is connected to the edge of the lower ring body. The sliding connection on the slide rail is limited. position block, the slide rail extends to the edge of the lower ring body, and the middle part of the bimetal piece is connected to the limit block. The bimetal piece has a normal temperature state and a heating state. When the bimetal piece At normal temperature, the middle part of the bimetal piece bulges away from the axis of the upper ring body, causing the limiting block to protrude from the limiting hole. When the bimetal piece is in the heated state When lowering, the middle part of the bimetal piece retracts toward the axis direction of the upper circular body, so that the limiting block retracts into the inside of the limiting hole.

As a further improvement of the above technical solution, several connecting columns are connected to the edges of the upper circular body and the lower circular body, and several connecting columns are arranged in a circumferential array along the axis of the upper circular body. At least one The connecting post is disposed on the side of the surface of the bimetal piece close to the axis of the upper ring body. When the bimetal piece is in a heated state, the bimetal piece offsets the connecting post.

As a further improvement of the above technical solution, a heating device is provided between the upper annular body and the lower annular body, and the heating device is arranged on the axis of the upper annular body.

As a further improvement of the above technical solution, the slide rail is arranged obliquely, and the end of the slide rail away from the lower annular body is higher than the end of the slide rail close to the lower annular body.

As a further improvement of the above technical solution, the outer surface of the rod body is provided with self-tapping threads.

As a further improvement of the above technical solution, several bimetallic plates are connected between the upper annular body and the lower annular body, and several bimetallic plates are arranged in a circumferential array along the axis of the upper annular body, The outer wall of the rod body is provided with a plurality of said limit holes, the bottom of each limit hole is provided with said slide rail, each said slide rail is provided with said limit block, said bimetal sheet, said limiter The position holes, the limit blocks, and the slide rails are arranged in one-to-one correspondence.

As a further improvement of the above technical solution, one end of the limiting block away from the lower annular body gradually narrows in a direction away from the lower annular body.

The beneficial effects of the present invention are: the bottom surface of the rod body is provided with a cone, so that it can be more easily inserted into the soil layer; the diameter of the lower ring body is larger than that of the upper ring body; the axis of the upper ring body and the lower ring body collinear, so that the surface of the bimetal piece connected to the edge of the upper torus and the edge of the lower torus is tilted upward. The bimetal has a normal temperature state and a heating state, so that the bimetal is in a normal temperature state. The limit block can be extended from the limit hole, and when the rod is inserted into the soil layer, the limit block can come into contact with the soil layer to generate static friction, which effectively improves the connection between the anchor rod and the soil layer. The maximum static friction between the soil layers has a better reinforcement effect and the anchor has a greater pullout resistance. When the bimetal piece is in a heated state, the limit block retracts from the limit hole, thereby enabling It is more convenient to extract the pole body from the soil layer and is convenient to use.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the drawings needed to be used in the description of the embodiments will be briefly described below. Obviously, the described drawings are only some of the embodiments of the present invention, not all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic cross-sectional view of the heating state of the bimetallic sheet of the present disclosure;

Figure 2 is a schematic cross-sectional view of the bimetallic sheet of the present disclosure in a normal temperature state.

In the figure: rod body 1, cone 2, upper ring body 3, lower ring body 4, connecting column 5, slide rail 6, limit block 7, limit hole 8, bimetal sheet 9, heating device 10.

Detailed ways

The concept, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and drawings to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without exerting creative efforts are all protection scope of the present invention. In addition, all the connections/connection relationships mentioned in the article do not only refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation conditions. Various technical features in the invention can be combined interactively without conflicting with each other.

Referring to Figures 1 to 2, a temperature-controlled anchor rod includes a rod body 1, a cavity is provided in the rod body 1, a cone 2 is provided on the bottom surface of the rod body 1, and the bottom surface of the rod body 1 is connected to the On the bottom surface of the cone 2, a bracket is provided in the cavity. The bracket includes an upper ring body 3, a lower ring body 4 arranged below the upper ring body 3, and connects the upper ring body 3 and the lower ring body 3. The connecting column 5 of the lower annular body 4, the axes of the lower annular body 4 and the upper annular body 3 are collinear, and the diameter of the lower annular body 4 is greater than or equal to the upper annular body 3 diameter, a bimetal piece 9 is connected between the edge of the upper ring body 3 and the edge of the lower ring body 4, a limiting hole 8 is provided on the outer wall of the rod body 1, and the limiting hole 8 is A slide rail 6 is provided at the bottom. The slide rail 6 is connected to the edge of the lower ring body 4. The slide rail 6 is slidably connected to a limiting block 7. The slide rail 6 extends to the lower ring body. 4, the middle part of the bimetal sheet 9 is connected to the limiting block 7. The bimetal sheet 9 has a normal temperature state and a heating state. When the bimetal sheet 9 is in a normal temperature state, the bimetal sheet 9 The middle part of 9 bulges away from the axis of the upper ring body 3, so that the limiting block 7 protrudes from the limiting hole 8. When the bimetal piece 9 is in a heated state, the The middle part of the bimetal piece 9 is retracted toward the axis direction of the upper annular body 3 , so that the limiting block 7 is retracted into the inside of the limiting hole 8 .

In this embodiment, the bottom surface of the rod body 1 is provided with a cone 2 so that it can be more easily inserted into the soil layer. The diameter of the lower ring body 4 is larger than that of the upper ring body 3. The axes of the ring body 4 are collinear, so that the surface of the bimetal piece 9 connected to the edge of the upper ring body 3 and the edge of the lower ring body 4 is inclined upward, and the bimetal piece 9 has a normal temperature state and a heated state, Therefore, the bimetal piece 9 can make the limiting block 7 protrude from the limiting hole 8 at normal temperature, and then when the rod body 1 is inserted into the soil layer, it can communicate with the soil layer through the limiting block 7 The friction force generated by the mutual contact effectively improves the maximum static friction between the anchor rod and the soil layer, and the reinforcement effect is better, and the anchor rod has greater pullout resistance. When the bimetal piece 9 is in a heated state, The limiting block 7 is retracted from the limiting hole 8, so that the pole body 1 can be more conveniently extracted from the soil layer and is convenient to use.

Bimetallic sheet 9 is a composite material composed of two or more metals or other materials with suitable properties. Bimetallic sheet 9 is also called thermal bimetallic sheet 9. Since the thermal expansion coefficients of each component layer are different, when the temperature changes, the deformation of the active layer is greater than the deformation of the passive layer, so the entire bimetallic sheet 9 will move toward the passive layer. When one side is bent, the curvature of the composite material changes and deforms.

As a further preferred embodiment, several connecting columns 5 are connected to the edges of the upper circular body 3 and the lower circular body 4, and the plurality of connecting columns 5 are arranged in a circumferential array along the axis of the upper circular body 3. Set, at least one of the connecting posts 5 is set on the side of the surface of the bimetal piece 9 close to the axis of the upper ring body 3. When the bimetal piece 9 is in a heated state, the bimetal piece 9 It offsets the connecting column 5; the structure is simple and easy to set up. The connecting column 5 is arranged so that when the bimetal piece 9 is in a heated state, the middle part of the bimetal piece 9 retracts to offset the connecting column 5, effectively preventing The bimetal piece 9 is excessively deformed.

As a further preferred embodiment, a heating device 10 is provided between the upper annular body 3 and the lower annular body 4, and the heating device 10 is arranged on the axis of the upper annular body 3; this structure It is simple and convenient to set up. Through the setting as a result, the bimetal piece 9 can be heated more conveniently. In this embodiment, the heating device 10 can use an induction heating device 10 or a heating resistor; when in use, the heating device 10 and the connecting column 5 can be fixedly connected by setting a fixed rod, that is, the heating device 10 and the connecting column are fixedly connected. Rod connection.

As a further preferred embodiment, the slide rail 6 is arranged at an angle, and the end of the slide rail 6 away from the lower annular body 4 is higher than the end of the slide rail 6 close to the lower annular body 4; this structure It is simple and convenient to set up. Through the arrangement of this structure, when the bimetal piece 9 is in a heated state, the limit block 7 can be retracted into the limit hole 8 under the action of gravity.

As a further preferred embodiment, the outer surface of the rod body 1 is provided with self-tapping threads; this structure is simple and convenient to set up. Through the arrangement of this structure, the rod body 1 can be more conveniently inserted into the soil layer.

As a further preferred embodiment, a plurality of bimetallic sheets 9 are connected between the upper annular body 3 and the lower annular body 4, and the several bimetallic sheets 9 are aligned with the axis of the upper annular body 3. Circular array arrangement, the outer wall of the rod body 1 is provided with several limit holes 8, the bottom of each limit hole 8 is provided with the slide rail 6, and each of the slide rails 6 is provided with the limit block 7 , the bimetal piece 9, the limit hole 8, the limit block 7, and the slide rail 6 are arranged in one-to-one correspondence; the structure is simple and convenient to set up. Through the setting of the structure, the rod body 1 can be inserted into the soil The reinforcement of the soil layer behind the layer is more stable.

As a further preferred embodiment, one end of the limiting block 7 away from the lower annular body 4 gradually narrows in a direction away from the lower annular body 4; this structure is simple and easy to set up. , the limiting block 7 is easier to insert into the soil layer.

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims (5)

1. The utility model provides a control by temperature change formula stock, includes body of rod (1), its characterized in that: the heating device is characterized in that a cavity is formed in the rod body (1), a cone (2) is arranged on the bottom surface of the rod body (1), the bottom surface of the rod body (1) is connected with the bottom surface of the cone (2), a support is arranged in the cavity, the support comprises an upper annular body (3), a lower annular body (4) arranged below the upper annular body (3) and a connecting column (5) connected with the upper annular body (3) and the lower annular body (4), the lower annular body (4) and the axis of the upper annular body (3) are collinear, the diameter of the lower annular body (4) is larger than or equal to that of the upper annular body (3), a bimetallic strip (9) is connected between the edge of the upper annular body (3) and the edge of the lower annular body (4), a limit hole (8) is formed in the outer wall of the rod body (1), a sliding rail (6) is connected to the edge of the lower annular body (4), the sliding rail (6) is connected with the edge of the lower annular body (6), the bimetallic strip (7) is connected with the limit block (9) in a sliding mode, and the bimetallic strip (9) is in a normal temperature state when the bimetallic strip (9) is in a sliding mode, the middle part of the bimetallic strip (9) protrudes towards the axis direction far away from the upper annular body (3), so that the limiting block (7) extends out of the limiting hole (8), and when the bimetallic strip (9) is in a heating state, the middle part of the bimetallic strip (9) retracts towards the axis direction close to the upper annular body (3), so that the limiting block (7) is retracted into the inner side of the limiting hole (8); the edge of the upper ring body (3) and the edge of the lower ring body (4) are connected with a plurality of connecting columns (5), the connecting columns (5) are arranged in a circumferential array of the axis of the upper ring body (3), at least one connecting column (5) is arranged beside the surface, close to the axis of the upper ring body (3), of the bimetallic strip (9), and when the bimetallic strip (9) is in a heating state, the bimetallic strip (9) is propped against the connecting columns (5); a heating device (10) is arranged between the upper torus (3) and the lower torus (4), and the heating device (10) is arranged on the axis of the upper torus (3).

2. A temperature-controlled bolt according to claim 1, wherein: the sliding rail (6) is obliquely arranged, and one end of the sliding rail (6) away from the lower ring body (4) is higher than one end of the sliding rail (6) close to the lower ring body (4).

3. A temperature-controlled bolt according to claim 1, wherein: the outer side surface of the rod body (1) is provided with self-tapping threads.

4. A temperature-controlled bolt according to claim 1, wherein: connect a plurality of between last ring body (3) with lower ring body (4) bimetallic strip (9), a plurality of bimetallic strip (9) with the axis circumference array setting of last ring body (3), the outer wall of body of rod (1) sets up a plurality of spacing hole (8), every spacing hole (8) bottom all sets up slide rail (6), every slide rail (6) all sets up stopper (7), bimetallic strip (9) spacing hole (8) stopper (7) slide rail (6) one-to-one sets up.

5. A temperature-controlled bolt according to claim 1, wherein: one end of the limiting block (7) far away from the lower ring body (4) is gradually narrowed along the direction far away from the lower ring body (4).