CN221702759U - A sealing structure for expansion joints of building construction - Google Patents

Abstract

The utility model discloses a building expansion joint sealing structure, which comprises a first L-shaped plate and a second L-shaped plate which are respectively fixed on walls at two sides of an expansion joint, wherein U-shaped plates with inverted U-shaped structures are arranged on the first L-shaped plate and the second L-shaped plate, the first end of each U-shaped plate is fixedly connected to the outer side of a transverse plate of the first L-shaped plate, the second end of each U-shaped plate is positioned above a transverse plate of the second L-shaped plate, and a guide groove is formed in a downward opening of the second end of each U-shaped plate; the guide groove is internally provided with a movable sealing component in a sliding way, and the bottom end of the movable sealing component is contacted with the surface of the transverse plate of the second L-shaped plate; a plurality of buffer mechanisms are arranged between the vertical plates of the first L-shaped plate and the vertical plates of the second L-shaped plate. According to the utility model, the U-shaped plates and the movable sealing assembly are arranged, so that when the height of the wall bodies at the two sides of the expansion joint is uneven, the sealing strip below the baffle is tightly attached to the second L-shaped plate under the elastic action of the third spring, and the waterproof function of the sealing strip is always kept in a normal working state.

Description

A sealing structure for expansion joints of building construction

Technical Field

The utility model relates to the technical field of house construction, in particular to a sealing structure for expansion joints in house construction.

Background Art

The expansion joint of building construction is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure due to climate and temperature changes. The expansion joint divides the building components above the foundation, such as walls, floor slabs, roofs, etc., into two independent parts, so that the building or structure can be expanded and contracted horizontally along the long direction. The existing building expansion joints mainly include building expansion joints composed of adjacent beams and slabs.

The Chinese utility model patent with patent number CN 202020208875.1 discloses a building expansion joint structure, including two connecting units and a waterstop arranged between the two connecting units, a gap is formed between the two connecting units, and the upper end surface of the connecting unit is provided with a flange, and an installation groove is opened on the side of the flange away from the connecting unit, and the installation groove extends along the length direction of the connecting unit. The two sides of the waterstop are respectively inserted into adjacent installation grooves, and the waterstop closes the gap formed by the two connecting units. A pressure plate for pressing the waterstop is provided on the side of the waterstop away from the connecting unit, and a number of locking parts are provided between the pressure plate and each connecting unit. However, this patent still has the following problems: in order to achieve the waterproof function, the vertical plate on the pressure plate is connected to the connecting unit through a sealing rubber pad for waterproofing, and the bottom of the vertical plate is also in contact with the connecting unit. There is not enough room for movement in both the horizontal and vertical directions. During underground geological activities, if the walls on both sides of the expansion joint are uneven, or the horizontal displacement exceeds the thickness of the sealing rubber pad, the pressure plate will be deformed and damaged. After the pressure plate is deformed, a gap will be generated between the pressure plate and the connecting unit, and the sealing structure will be at risk of leakage.

Summary of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a sealing structure for expansion joints in building construction, so as to solve the problem that the waterproofing and buffering functions of the existing expansion joint structure in building construction are at risk of failure when the walls on both sides are uneven.

The utility model is realized by the following technical solutions:

A building expansion joint sealing structure, comprising:

A first L-shaped plate (1), the bottom surface of which is fixed on the wall (6) on one side of the expansion joint (7);

A second L-shaped plate (2), the bottom surface of which is fixed to the wall (6) on the other side of the expansion joint (7);

A U-shaped plate (3) is invertedly covered on the first L-shaped plate (1) and the second L-shaped plate (2), the first end of which is fixedly connected to the outer side of the transverse plate of the first L-shaped plate (1), the second end of which is located above the transverse plate of the second L-shaped plate (2), and the second end of which is open downwardly and is provided with a guide groove (31), and the U-shaped plate (3) is used to close the expansion joint (7);

A movable sealing component (4) is slidably arranged in the guide groove (31) up and down, and the bottom end of the movable sealing component (4) is in contact with the horizontal plate surface of the second L-shaped plate (2);

A plurality of buffer mechanisms (5) are arranged between the vertical plate of the first L-shaped plate (1) and the vertical plate of the second L-shaped plate (2) and are used to buffer the force of the walls (6) on both sides of the expansion joint (7) when they move horizontally or vertically relative to each other.

Furthermore, a plurality of mechanism grooves (21) are arranged on the inner side of the vertical plate of the second L-shaped plate (2), and one end of the buffer mechanism (5) is arranged in the mechanism groove (21), and the buffer mechanism (5) comprises:

A column (51) is vertically arranged in the mechanism slot (21);

A slider (52) is slidably disposed on the column (51);

A first spring (53), one end of which is connected to the top of the mechanism slot (21) and the other end of which is connected to the slider (52);

A connecting tube (54) having one end hinged to the vertical plate of the first L-shaped plate (1);

A second spring (55) is disposed in the connecting tube (54), and a first end is connected to the bottom surface of the connecting tube (54);

The first end of the connecting rod (56) is slidably disposed in the connecting tube (54), the second end of the second spring (55) is connected to the first end of the connecting rod (56), and the second end of the connecting rod (56) is hinged on the slider (52).

Furthermore, the movable sealing component (4) comprises:

A plurality of third springs (41) are arranged in an array in the guide groove (31), with a first end connected to the bottom surface of the guide groove (31);

The baffle plate (42) has a top that is slidably disposed in the guide groove (31), a top end that is connected to the second end of the third spring (41), and a bottom end that is in contact with the transverse plate surface of the second L-shaped plate (2).

Furthermore, a sealing strip (421) is provided at the bottom end of the baffle (42), and the bottom of the sealing strip (421) is tightly attached to the surface of the horizontal plate of the second L-shaped plate (2).

Furthermore, the cross section of the sealing strip (421) is semicircular or "W"-shaped.

Furthermore, a scale (22) is provided on the transverse surface of the second L-shaped plate (2) and the outer side surface of the baffle (42).

Furthermore, a waterproof layer is provided between the bottom surface of the transverse plate of the first L-shaped plate (1), the bottom surface of the transverse plate of the second L-shaped plate (2) and the wall (6).

Furthermore, the U-shaped plate (3) is fixedly mounted on the side of the transverse plate of the first L-shaped plate (1) by means of bolts.

The working principle of this utility model:

During the use of the utility model, due to geological movement or thermal expansion and contraction of the building wall (6), the wall (6) on both sides of the expansion joint (7) may move vertically or horizontally:

When the wall (6) on one side of the first L-shaped plate (1) rises in the vertical direction or moves toward the wall (6) on the side of the second L-shaped plate (2) in the horizontal direction, the first L-shaped plate (1) pushes the connecting tube (54), and the connecting tube (54) pushes the second spring (55) to cause it to deform and contract. The second spring (55) pushes the connecting rod (56) under the action of the elastic force, and the connecting rod (56) pushes the slider (52) to slide upward along the column (51) to compress the length of the first spring (53). The first spring (53) applies an upward force to the second L-shaped plate (2) on the wall (6) under the action of the elastic force, so that The second L-shaped plate (2) has a tendency to move upwards to achieve a buffering effect and slow down the relative movement of the walls (6) on both sides; when the wall (6) on one side of the first L-shaped plate (1) descends in the vertical direction or moves away from the wall (6) on the other side of the second L-shaped plate (2) in the horizontal direction, the first L-shaped plate (1) pulls the connecting tube (54), and the connecting tube (54) pulls the second spring (55) to deform and lengthen, and the second spring (55) pulls the connecting rod (56) back under the action of the elastic force, and the connecting rod (56) pulls the slider (52) to slide downward along the column (51), and the length of the first spring (53) is stretched.

When the walls (6) on both sides of the expansion joint (7) are uneven, the baffle (42) slides up and down along the guide groove (31) under the action of the elastic force of the third spring (41), and the sealing strip (421) below the baffle (42) closely fits the horizontal plate of the second L-shaped plate (2) under the action of the elastic force of the third spring (41); when the width of the walls (6) on both sides of the expansion joint (7) changes, the baffle (42) moves in the horizontal direction along with the U-shaped plate (3), and the sealing strip (421) below the baffle (42) slides closely against the horizontal plate of the second L-shaped plate (2) under the action of the elastic force of the third spring (41); when the walls (6) on both sides of the expansion joint (7) move in the vertical or horizontal direction, the sealing strip (43) below the baffle (42) always closely fits the horizontal plate of the second L-shaped plate (2), so that its waterproof function always maintains a normal working state.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model provides a U-shaped plate (3) and a movable sealing assembly (4) so that when the walls (6) on both sides of the expansion joint (7) are uneven, the sealing strip (43) below the baffle (42) is tightly attached to the second L-shaped plate (2) under the elastic force of the third spring (41), so that the waterproof function always maintains a normal working state.

2. The utility model provides a buffer mechanism (5) so that the walls (6) on both sides of the expansion joint (7) can play a buffering role under the joint action of the first spring (53) and the second spring (55) when the walls (6) on both sides of the expansion joint (7) move horizontally or vertically relative to each other.

3. The utility model connects the U-shaped plate (3) to the first L-shaped plate with bolts. When inspecting and maintaining, the U-shaped plate (3) can be opened by removing the fixing bolts, making inspection and maintenance more convenient and facilitating the inspection and maintenance of the expansion joint (7).

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is one of the three-dimensional structural diagrams of the utility model;

FIG3 is a second three-dimensional structural diagram of the utility model;

FIG4 is a schematic diagram of the rise of the wall on one side of the expansion joint of the utility model;

Figure 5 is a schematic diagram of the sinking of the wall on one side of the expansion joint of the utility model;

FIG6 is a schematic diagram of the horizontal movement of the walls on both sides of the expansion joint of the present invention.

Numbers in the figure:

1- the first L-shaped plate;

2-second L-shaped plate, 21-mechanism slot, 22-scale;

3-U-shaped plate, 31-guide groove;

4-movable closing assembly, 41-third spring, 42-baffle, 421-sealing strip;

5-buffer mechanism, 51-column, 52-slider, 53-first spring, 54-connecting tube, 55-second spring, 56-connecting rod;

6-Wall;

7-Expansion joints.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

As shown in Figures 1-6, a sealing structure for expansion joints in building construction includes a first L-shaped plate 1 and a second L-shaped plate 2 respectively fixed on the walls 6 on both sides of the expansion joint 7, a U-shaped plate 3 in an inverted U-shaped structure is arranged on the first L-shaped plate 1 and the second L-shaped plate 2, a first end of the U-shaped plate 3 is fixedly connected to the outer side of the horizontal plate of the first L-shaped plate 1, and the second end is located above the horizontal plate of the second L-shaped plate 2, and a guide groove 31 is arranged on the second end to open downward; a movable sealing component 4 is slidably arranged in the guide groove 31, and the bottom end of the movable sealing component 4 is in contact with the surface of the horizontal plate of the second L-shaped plate 2; a plurality of buffer mechanisms 5 are arranged between the vertical plate of the first L-shaped plate 1 and the vertical plate of the second L-shaped plate 2.

In the embodiment, as shown in FIG2 , a plurality of mechanism grooves 21 are provided on the inner side of the vertical plate of the second L-shaped plate 2 , and one end of the buffer mechanism 5 is provided in the mechanism groove 21 ;

The buffer mechanism 5 includes a column 51 vertically arranged in the mechanism groove 21, and a slider 52 is slidably arranged on the column 51, and the slider 52 is connected to the top of the mechanism groove 21 through a first spring 53; a connecting tube 54 is hingedly arranged on the vertical plate of the first L-shaped plate 1, and a second spring 55 is arranged in the connecting tube 54, and the first end of the second spring 55 is connected to the bottom surface of the connecting tube 54; a connecting rod 56 is slidably arranged in the connecting tube 54, and the second end of the second spring 55 is connected to the first end of the connecting rod 56, and the second end of the connecting rod 56 is hinged on the slider 52.

In the embodiment, as shown in Figures 1 and 4-6, the movable closing assembly 4 includes a plurality of third springs 41 arranged in the guide groove 31, and the first end of the third spring 41 is connected to the bottom surface of the guide groove 31; a baffle 42 is slidably arranged in the guide groove 31, the top end of the baffle 42 is connected to the second end of the third spring 41, and the bottom end of the baffle 42 is in contact with the horizontal plate surface of the second L-shaped plate 2.

A sealing strip 421 is provided at the bottom end of the baffle 42, and the bottom of the sealing strip 421 is tightly attached to the surface of the horizontal plate of the second L-shaped plate 2; it is used to enhance the sealing performance of the contact between the baffle 42 and the horizontal plate of the second L-shaped plate 2, and prevent rainwater from seeping in from the gap between the second L-shaped plate 2 and the baffle 42.

In the embodiment, as shown in FIGS. 1 and 4-6, the cross-section of the sealing strip 421 is semicircular or "W"-shaped. The sealing strip 421 with the "W"-shaped structure can form double protection. After the single-layer sealing strip 421 slides back and forth in the horizontal direction for multiple times, the sealing strip 421 may be twisted. After the sealing strip 421 is twisted, gaps may be generated. The double protection can improve the waterproof performance of the sealing strip 421.

In the embodiment, as shown in FIG3 , a scale 22 is provided on the surface of the transverse plate of the second L-shaped plate 2 and the outer side surface of the baffle 42. When the wall 6 on both sides of the expansion joint 7 moves, the position of the baffle 42 moves with the wall. The scale 22 can intuitively reflect the displacement of the baffle 42 in the horizontal and vertical directions, so that the staff can timely inspect and maintain the expansion joint 7.

In the embodiment, as shown in Figure 3, a waterproof layer is arranged between the bottom surface of the horizontal plate of the first L-shaped plate 1, the bottom surface of the horizontal plate of the second L-shaped plate 2 and the wall 6, which is used to enhance the sealing of the installation position of the first L-shaped plate 1 and the second L-shaped plate 2 and prevent water seepage from the bottom of the first L-shaped plate 1 and the second L-shaped plate 2.

In the embodiment, as shown in FIG. 1 , the U-shaped plate 3 is fixedly mounted on the side of the horizontal plate of the first L-shaped plate 1 by bolts. During maintenance, the U-shaped plate 3 can be opened by removing the fixing bolts, making maintenance more convenient and facilitating the inspection and maintenance of the expansion joint 7.

Working mode of the utility model:

During the use of the utility model, due to geological movement or thermal expansion and contraction of the building wall 6, the wall 6 on both sides of the expansion joint 7 may move vertically or horizontally:

As shown in Figure 4, when the wall 6 on one side of the first L-shaped plate 1 rises in the vertical direction or moves toward the wall 6 on the side of the second L-shaped plate 2 in the horizontal direction, the first L-shaped plate 1 pushes the connecting tube 54, and the connecting tube 54 pushes the second spring 55 to cause it to deform and contract. The second spring 55 pushes the connecting rod 56 under the action of the elastic force, and the connecting rod 56 pushes the slider 52 to slide upward along the column 51 to compress the length of the first spring 53. The first spring 53 applies an upward force to the second L-shaped plate 2 on the wall 6 under the action of the elastic force, so that the second L-shaped plate 2 tends to move upward, so as to achieve a buffering effect and slow down the relative movement of the walls 6 on both sides.

As shown in Figure 5, when the wall 6 on one side of the first L-shaped plate 1 descends in the vertical direction or moves away from the wall 6 on the side of the second L-shaped plate 2 in the horizontal direction, the first L-shaped plate 1 pulls the connecting tube 54, and the connecting tube 54 pulls the second spring 55 to cause it to deform and stretch. The second spring 55 pulls the connecting rod 56 back under the action of elastic force, and the connecting rod 56 pulls the slider 52 to slide downward along the column 51, and the length of the first spring 53 is stretched.

By providing the U-shaped plate 3 and the movable closing assembly 4, when the wall 6 on both sides of the expansion joint 7 is uneven, the sealing strip 43 below the baffle 42 is tightly attached to the horizontal plate of the second L-shaped plate 2 under the elastic force of the third spring 41, so that the waterproof function always maintains a normal working state;

As shown in FIG4 , when the wall 6 on one side of the first L-shaped plate 1 rises or the wall 6 on one side of the second L-shaped plate 2 falls, the third spring 41 extends, and the baffle 42 slides downward along the guide groove 31 under the elastic force of the third spring 41, and the sealing strip 421 below the baffle 42 fits tightly against the cross plate of the second L-shaped plate 2 under the elastic force of the third spring 41; as shown in FIG5 , when the wall 6 on one side of the first L-shaped plate 1 falls or the wall 6 on one side of the second L-shaped plate 2 rises, the baffle 42 slides upward along the guide groove 31 squeezed by the cross plate of the second L-shaped plate 2, and the third spring 41 is squeezed and compressed by the baffle 42;

As shown in Figure 6, when the wall 6 on one side of the first L-shaped plate 1 is close to the wall 6 on one side of the second L-shaped plate 2, the width of the expansion joint 7 becomes narrower, the baffle 42 moves toward the outside of the second L-shaped plate 2 with the U-shaped plate 3, and the sealing strip 421 under the baffle 42 slides closely against the horizontal plate of the second L-shaped plate 2; when the wall 6 on one side of the first L-shaped plate 1 is away from the wall 6 on one side of the second L-shaped plate 2, the expansion joint 7 becomes wider, the baffle 42 moves toward the vertical plate of the second L-shaped plate 2 with the U-shaped plate 3, and the sealing strip 421 under the baffle 42 slides closely against the horizontal plate of the second L-shaped plate 2.

It should be noted that the above detailed introduction of the technical solution of the utility model and the description of the principle of the utility model are provided, and the above description of the working principle is only used to help understand the core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

The technical personnel in the technical field of the utility model can make modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, which shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (8)

1. Expansion joint seal structure is built in room, its characterized in that includes:

The bottom surface of the transverse plate is fixed on a wall body (6) at one side of the expansion joint (7) of the first L-shaped plate (1);

The bottom surface of the transverse plate is fixed on a wall body (6) at the other side of the expansion joint (7);

The U-shaped plate (3) is inversely covered on the first L-shaped plate (1) and the second L-shaped plate (2), the first end is fixedly connected to the outer side of the transverse plate of the first L-shaped plate (1), the second end is positioned above the transverse plate of the second L-shaped plate (2), a guide groove (31) is formed in the second end and is downwards opened, and the U-shaped plate (3) is used for sealing the expansion joint (7);

The movable sealing component (4) is arranged in the guide groove (31) in a vertical sliding way, and the bottom end of the movable sealing component (4) is contacted with the surface of the transverse plate of the second L-shaped plate (2);

The buffering mechanisms (5) are arranged between the vertical plates of the first L-shaped plate (1) and the vertical plates of the second L-shaped plate (2) and used for buffering the force generated when the wall bodies (6) on the two sides of the expansion joint (7) move horizontally or vertically.

2. The building expansion joint sealing structure according to claim 1, wherein: the inboard a plurality of mechanism groove (21) that is provided with of riser of second L template (2), buffer gear (5) one end setting is in mechanism groove (21), buffer gear (5) include:

the upright post (51) is vertically arranged in the mechanism groove (21);

the sliding block (52) is arranged on the upright post (51) in a sliding manner;

A first spring (53) with one end connected to the top of the mechanism groove (21) and the other end connected to the slider (52);

One end of the connecting cylinder (54) is hinged to the vertical plate of the first L-shaped plate (1);

A second spring (55) arranged in the connecting cylinder (54), the first end of which is connected to the bottom surface in the connecting cylinder (54);

The first end of the connecting rod (56) is arranged in the connecting cylinder (54) in a sliding mode, the second end of the second spring (55) is connected with the first end of the connecting rod (56), and the second end of the connecting rod (56) is hinged to the sliding block (52).

3. The building expansion joint sealing structure according to claim 1, wherein: the movable closing assembly (4) comprises:

A plurality of third springs (41) which are arranged in the guide groove (31) and the first ends of which are connected to the bottom surface of the guide groove (31);

The top of the baffle plate (42) is arranged in the guide groove (31) in a sliding way, the top end of the baffle plate is connected with the second end of the third spring (41), and the bottom end of the baffle plate (42) is contacted with the surface of the transverse plate of the second L-shaped plate (2).

4. A building expansion joint sealing structure according to claim 3, wherein: the bottom end of the baffle plate (42) is provided with a sealing strip (421), and the bottom of the sealing strip (421) is tightly attached to the surface of the transverse plate of the second L-shaped plate (2).

5. The building expansion joint sealing structure according to claim 4, wherein: the cross section of the sealing strip (421) is in a semicircular or W-shaped structure.

6. The building expansion joint sealing structure according to claim 1, wherein: and the surface of the transverse plate of the second L-shaped plate (2) and the outer side surface of the baffle plate (42) are provided with graduated scales (22).

7. The building expansion joint sealing structure according to claim 1, wherein: waterproof layers are arranged between the bottom surface of the transverse plate of the first L-shaped plate (1) and the bottom surface of the transverse plate of the second L-shaped plate (2) and the wall body (6).

8. The building expansion joint sealing structure according to claim 1, wherein: the U-shaped plate (3) is fixedly arranged on the lateral surface of the transverse plate of the first L-shaped plate (1) through bolts.