Wall brushing device for diaphragm wall joint and method of use thereof

Abstract

The application relates to a wall brushing device for a diaphragm wall joint and a use method thereof, which comprises a fixing cylinder installed at the joint of the diaphragm wall, a transmission rod rotatably installed on the fixing cylinder, the cross section of the transmission rod being non-circular, a transmission cylinder sleeved on the transmission rod, the transmission cylinder being provided with a connecting hole matched with the transmission rod, and a plurality of steel wire brushes which are arranged at intervals and installed on the transmission cylinder, the transmission rod is rotated to drive the transmission cylinder and the steel wire brushes to rotate, the transmission cylinder is moved back and forth along the transmission rod to drive the steel wire brushes to move back and forth, and thus the steel wire brushes clean the joint of the diaphragm wall. The application effectively solves the problem of poor mud cleaning effect at the joint of the diaphragm wall, the joint of the diaphragm wall is cleaned by the wall brushing device to remove the excess mud, and the folds and recesses can be cleaned, the cleaning effect is good, and the construction quality in the subsequent construction is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a wall brushing device for diaphragm wall joints and a method of using the same. BACKGROUND

[0002] A diaphragm wall is a kind of foundation engineering, which uses a kind of trenching machine on the ground to excavate a long and narrow deep trench along the axis of a deep excavation project under the condition of mud wall protection. After trench cleaning, a reinforcement cage is hoisted into the trench, and then an underwater concrete is poured into the trench to form a unit trench section. The process is repeated to form a continuous reinforced concrete wall underground, which serves as a water interception, seepage prevention, load bearing and soil retaining structure.

[0003] The diaphragm wall is composed of many wall segments. In order to maintain continuous construction between the wall segments, a lock pipe technology is used for the joint. Before pouring the concrete into the trench section, a steel pipe with the same diameter and width as the trench is pre-inserted at the end of the trench section, i.e. the lock pipe. After the concrete is initially cured, the steel pipe is slowly pulled out to form a semi-recessed joint at the end. Then, the convex part of the secondary diaphragm wall reinforcement cage is lowered to connect, and then the concrete is poured to form a whole diaphragm wall.

[0004] After the lock pipe is pulled out, mud remains at the joint between the wall segments. If the concrete is poured directly at this time, the connection between the concrete and the wall will not be firm. Therefore, the mud at the joint of the wall needs to be cleaned first. Generally, a steel wire brush is suspended by a rope to explore the inside of the circular groove between the walls. However, when working on a deeper continuous wall, the steel wire brush will inevitably sway due to the large depth of the groove, resulting in unsatisfactory cleaning effect on the wall. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a wall brushing device for diaphragm wall joints and a method of using the same. The device can clean the mud at the joint of the diaphragm wall, remove excess mud, and clean the wrinkles and depressions, ensuring good cleaning effect and subsequent construction quality.

[0006] The technical solution to achieve the above-mentioned purpose is:

[0007] The present application provides a wall brushing device for diaphragm wall joints, comprising:

[0008] a fixed cylinder installed at the joint of the diaphragm wall;

[0009] a transmission rod rotatably installed in the fixed cylinder, the cross section of the transmission rod being non-circular;

[0010] The transmission cylinder is sleeved on the transmission rod, and the transmission cylinder is provided with a connecting hole matched with the transmission rod.

[0011] The steel wire brushes are arranged at intervals and installed on the transmission cylinder.

[0012] The brush wall device for the diaphragm wall joint is used to rotate the transmission rod to drive the transmission cylinder and the steel wire brushes to rotate, and then move the transmission cylinder back and forth along the transmission rod to drive the steel wire brushes to move back and forth, so that the steel wire brushes clean the joint of the diaphragm wall, solve the problem of poor mud cleaning effect at the joint of the diaphragm wall, and clean the joint of the diaphragm wall by using the brush wall device to remove excess mud and clean the wrinkles and depressions, so that the cleaning effect is good and the subsequent construction quality is guaranteed.

[0013] The brush wall device for the diaphragm wall joint is further improved, and further comprises a mounting cylinder sleeved on the transmission cylinder, a plurality of first insertion holes arranged at intervals on the mounting cylinder and parallel to the transmission rod, a bearing seat fixed in the first insertion hole, and a reciprocating wire rod rotatably installed in the fixed cylinder and inserted into the first insertion hole and screw-connected with the bearing seat, and the steel wire brush is rotatably connected to the mounting cylinder and fixedly connected with the transmission cylinder.

[0014] The reciprocating wire rod is rotated to drive the mounting cylinder and the steel wire brush to move back and forth along the reciprocating wire rod, and the transmission cylinder moves back and forth along the transmission rod, and then the transmission rod is rotated to make the fixed cylinder and the steel wire brush rotate relative to the mounting cylinder.

[0015] The brush wall device for the diaphragm wall joint is further improved, and further comprises a transmission gear fixedly sleeved on the transmission rod and a driven gear fixedly sleeved on the reciprocating wire rod and engaged with the transmission gear.

[0016] The transmission rod is rotated to drive the transmission gear and the driven gear to rotate, thereby driving the reciprocating wire rod to rotate.

[0017] The brush wall device for the diaphragm wall joint is further improved, and further comprises a plurality of second insertion holes arranged at intervals on the mounting cylinder and parallel to the first insertion holes, a limiting hole communicated with the bottom of the second insertion hole and having a diameter larger than that of the second insertion hole, a limiting rod matched with the second insertion hole and fixedly installed on the fixed cylinder, and a limiting block fixedly installed on the bottom end of the limiting rod and matched with the limiting hole.

[0018] When the limiting block abuts against the bottom end of the second insertion hole or the bottom end of the limiting hole, the mounting cylinder can no longer move upward or downward along the reciprocating wire rod.

[0019] Further improvement of the wall brushing device of the diaphragm wall joint is that the connecting cylinder is sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, the annular groove is arranged on the inner wall of the connecting cylinder, and the plurality of hemispherical blocks are clamped on the annular groove and arranged on the outer wall of the mounting cylinder in a spaced manner, and the steel wire brush is fixed on the outer side wall of the connecting cylinder.

[0020] Further improvement of the wall brushing device of the diaphragm wall joint is that the connecting cylinder is sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, the annular groove is arranged on the inner wall of the connecting cylinder, and the plurality of hemispherical blocks are clamped on the annular groove and arranged on the outer wall of the mounting cylinder in a spaced manner, and the steel wire brush is fixed on the outer side wall of the connecting cylinder.

[0021] The connecting cylinder is rotated to drive the top rod to rotate around the mounting cylinder, when the part of the top rod in the annular groove meets the hemispherical block, the hemispherical block pushes the corresponding end of the top rod, so that the top rod drives the cleaning block and the steel wire brush to move away from the mounting cylinder.

[0022] Further improvement of the wall brushing device of the diaphragm wall joint is that the connecting cylinder is sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, the annular groove is arranged on the inner wall of the connecting cylinder, and the plurality of hemispherical blocks are clamped on the annular groove and arranged on the outer wall of the mounting cylinder in a spaced manner, and the steel wire brush is fixed on the outer side wall of the connecting cylinder.

[0023] When the top rod passes through the hemispherical block, the spring rebound force drives the insertion rod and the cleaning block to move towards the mounting cylinder.

[0024] Further improvement of the wall brushing device of the diaphragm wall joint is that the connecting cylinder is sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, the annular groove is arranged on the inner wall of the connecting cylinder, and the plurality of hemispherical blocks are clamped on the annular groove and arranged on the outer wall of the mounting cylinder in a spaced manner, and the steel wire brush is fixed on the outer side wall of the connecting cylinder.

[0025] Further improvement of the wall brushing device of the diaphragm wall joint is that the connecting cylinder is sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, the annular groove is arranged on the inner wall of the connecting cylinder, and the plurality of hemispherical blocks are clamped on the annular groove and arranged on the outer wall of the mounting cylinder in a spaced manner, and the steel wire brush is fixed on the outer side wall of the connecting cylinder.

[0026] By extending the electric push rod, the rubber pad is abutted against the diaphragm wall.

[0027] The application also provides a use method of the wall brushing device of the diaphragm wall joint, which comprises the following steps:

[0028] The wall brushing device is provided, and the fixed cylinder is mounted on the joint of the diaphragm wall.

[0029] The transmission rod is rotated to rotate the transmission cylinder and the steel wire brush, and the transmission cylinder is moved back and forth along the transmission rod to drive the steel wire brush to move back and forth, so that the steel wire brush cleans the joint of the diaphragm wall. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 isometric view of the wall brushing device of the diaphragm wall joint of the present application.

[0031] Figure 2 front sectional view of the wall brushing device of the diaphragm wall joint of the present application.

[0032] Figure 3 isometric view of the fixed cylinder part of the wall brushing device of the diaphragm wall joint of the present application. Figure 2 enlarged view of part A.

[0033] Figure 4 enlarged view of part B. Figure 2 enlarged view of part B.

[0034] Figure 5 isometric view of the connecting cylinder part of the wall brushing device of the diaphragm wall joint of the present application.

[0035] Figure 6 isometric view of the connecting cylinder part of the wall brushing device of the diaphragm wall joint of the present application.

[0036] Figure 7 isometric view of the connecting cylinder part of the wall brushing device of the diaphragm wall joint of the present application. DETAILED DESCRIPTION

[0037] The present application will be further described in conjunction with the accompanying drawings and specific embodiments.

[0038] The wall brushing device of the diaphragm wall joint of the present application is used to rotate the transmission cylinder and the steel wire brush by rotating the transmission rod, and then move the transmission cylinder back and forth along the transmission rod to move the steel wire brush back and forth, so that the steel wire brush cleans the joint of the diaphragm wall, solves the problem of poor mud cleaning effect at the joint of the diaphragm wall, and through the use of the wall brushing device to clean the joint of the diaphragm wall, the excess mud can be removed, and the folds and recesses can be cleaned, the cleaning effect is good, and the subsequent construction quality is guaranteed. The wall brushing device of the diaphragm wall joint of the present application will be described below in conjunction with the accompanying drawings.

[0039] Referring to Figure 1 , Figure 1 isometric view of the wall brushing device of the diaphragm wall joint of the present application. The wall brushing device of the diaphragm wall joint of the present application will be described below in conjunction with Figure 1 .

[0040] As Figure 1 , Figure 5 and Figure 6 shown, the wall brushing device of the diaphragm wall joint of the present application comprises:

[0041] a fixed cylinder 1 for installation at the joint of the diaphragm wall;

[0042] a transmission rod 4 rotatably installed on the fixed cylinder 1, the cross section of the transmission rod 4 being non-circular;

[0043] A transmission cylinder 5 is fitted onto the transmission rod 4, and the transmission cylinder 5 has a connecting hole that matches the transmission rod 4; and

[0044] Several wire brushes 8 are spaced apart and installed on the transmission cylinder 5. By rotating the transmission rod 4, the transmission cylinder 5 and the wire brushes 8 are driven to rotate. The transmission cylinder 5 moves back and forth along the transmission rod 4, thereby driving the wire brushes 8 to move back and forth, so that the wire brushes 8 clean the joint of the wall-to-ground connection.

[0045] Specifically, it also includes a lifting lug 3 fixed to the top of the fixed cylinder 1, so as to lift the device to the joint of the diaphragm wall via the lifting lug 3.

[0046] Preferably, the transmission rod 4 is driven to rotate by the motor 2, which can be installed on the fixed cylinder 1.

[0047] Preferably, if the cross-section of the transmission rod 4 is hexagonal, then the cross-section of the connecting hole is also hexagonal.

[0048] As a preferred embodiment of the present invention, combined with Figure 2 As shown, it also includes a mounting cylinder 104 sleeved on the transmission cylinder 5, a plurality of first insertion holes 105 spaced apart on the mounting cylinder 104 and parallel to the transmission rod 4, a bearing seat 107 fixed in the first insertion holes 105, and a reciprocating screw 103 rotatably mounted in the fixed cylinder 1 and inserted into the first insertion holes 105 and screwed to the bearing seat 107. The wire brush 8 is rotatably connected to the mounting cylinder 104 and fixedly connected to the transmission cylinder 5.

[0049] By rotating the reciprocating screw 103, the mounting cylinder 104 and the wire brush 8 are driven to move back and forth along the reciprocating screw 103, and the transmission cylinder 5 moves back and forth along the transmission rod 4, thereby rotating the transmission rod 4, so that the fixed cylinder 1 and the wire brush 8 rotate relative to the mounting cylinder 104.

[0050] Specifically, it also includes a transmission gear 101 fixedly sleeved on the transmission rod 4 and a driven gear 102 fixedly sleeved on the reciprocating screw 103 and meshing with the transmission gear 101.

[0051] By rotating the transmission rod 4, the transmission gear 101 and the driven gear 102 are driven to rotate, thereby driving the reciprocating lead screw 103 to rotate.

[0052] Furthermore, it also includes a plurality of second insertion holes 106 spaced apart on the mounting cylinder 104 and parallel to the first insertion hole 105, a limiting hole communicating with the bottom of the second insertion hole 106 and having a diameter larger than the diameter of the second insertion hole 106, a limiting rod 108 matching the second insertion hole 106 and fixed to the fixing cylinder 1, and a limiting block fixed to the bottom end of the limiting rod 108 and matching the limiting hole.

[0053] When the limiting block abuts against the bottom end of the second insertion hole 108 or the bottom end of the limiting hole, the mounting cylinder 104 no longer moves upward or downward along the reciprocating wire rod 103.

[0054] Further, in combination with Figure 7 As shown, the connecting cylinder 6 is sleeved on the mounting cylinder 104 and fixedly connected with the transmission cylinder 5 at the bottom, the annular groove 203 is formed in the inner wall of the connecting cylinder 6, and the plurality of semispherical blocks 204 are clamped on the outer wall of the mounting cylinder 104 and spaced apart. The steel wire brush 8 is fixedly arranged on the outer side wall of the connecting cylinder 6. The connecting cylinder 6 can rotate relative to the mounting cylinder 104 through the annular groove 203 and is clamped and connected through the semispherical blocks 204 and the annular groove 203, so that the connecting cylinder 6 is mounted on the mounting cylinder 104.

[0055] Further, in combination with Figure 4 As shown, the connecting cylinder 6 is sleeved on the mounting cylinder 104 and fixedly connected with the transmission cylinder 5 at the bottom, the annular groove 203 is formed in the inner wall of the connecting cylinder 6, and the plurality of semispherical blocks 204 are clamped on the outer wall of the mounting cylinder 104 and spaced apart. The steel wire brush 8 is fixedly arranged on the outer side wall of the connecting cylinder 6. The connecting cylinder 6 can rotate relative to the mounting cylinder 104 through the annular groove 203 and is clamped and connected through the semispherical blocks 204 and the annular groove 203, so that the connecting cylinder 6 is mounted on the mounting cylinder 104.

[0056] The connecting cylinder 6 is rotated to drive the top rod 205 to rotate around the mounting cylinder 104. When the part of the top rod 205 located in the annular groove 203 meets the semispherical block 204, the semispherical block 204 pushes the corresponding end of the top rod 205, so that the top rod 205 drives the cleaning block 7 and the steel wire brush 8 to move away from the mounting cylinder 104.

[0057] Specifically, in combination with Figure 3 As shown, the recess 210 is formed in the outer side wall of the connecting cylinder 6 and is parallel to the top rod 205, the baffle 208 is fixedly arranged at the opening of the recess 210, the insertion rod 206 is fixed at one end of the cleaning block 7 and passes through the baffle 208 and the recess 210, the clamping plate 207 is fixed at the other end of the insertion rod 206, and the spring 209 is sleeved on the insertion rod 206 and located between the baffle 208 and the clamping plate 207.

[0058] When the top rod 205 passes through the semispherical block 204, the spring 209 drives the insertion rod 206 and the cleaning block 7 to move towards the mounting cylinder 104 by the elastic force.

[0059] Further, the air cavity 201 is formed in the cleaning block 7, and the air pipe 202 is connected at one end with the air cavity 201 and at the other end with the connecting hole. The steel wire brush 8 is mounted in the air cavity 201. When the transmission rod 4 moves back and forth along the transmission cylinder 5, the airflow in the transmission cylinder 5 flows into the air cavity 201 through the air pipe 202, so that the airflow is generated in the air cavity 201 to cool the steel wire brush 8, thereby avoiding the local overheating of the steel wire brush 8 due to friction and reducing the abrasion of the steel wire brush 8.

[0060] Further, a plurality of electric push rods 9 are installed at intervals on the outer side wall of the fixing cylinder 1, and rubber pads 10 are fixed to the ends of the electric push rods 9 away from the fixing cylinder 1;

[0061] By extending the electric push rods 9, the rubber pads 10 abut against the ground-connected wall, i.e. the ground-connected wall is supported by the plurality of electric push rods 9, so that the fixing cylinder 1 is fixed at the joint of the ground-connected wall.

[0062] The specific embodiments of the present application are as follows:

[0063] The wall brushing device is hoisted to the joint of the ground-connected wall by the lifting lugs 3, and then the electric push rods 9 are extended so that each electric push rod 9 supports the ground-connected wall, thereby fixing the fixing cylinder 1 at the joint of the ground-connected wall;

[0064] The motor 2 is started to drive the transmission rod 4 to rotate, and since the cross section of the transmission rod 4 is non-circular, the transmission cylinder 5 can rotate with the transmission rod 4 and also move back and forth along the transmission rod 4. The transmission rod 4 drives the transmission cylinder 5 to rotate, the transmission cylinder 5 drives the connecting cylinder 6 to rotate, and the connecting cylinder 6 drives the steel wire brush 8 to rotate, so that the steel wire brush 8 cleans the joint of the ground-connected wall. Since the mounting cylinder 104 is connected to the connecting cylinder 6 by the connection mode of the hemispherical block 204 and the annular groove 203, the mounting cylinder 104 does not rotate;

[0065] During the rotation of the connecting cylinder 6, the jacking rod 205 also rotates around the mounting cylinder 104, i.e. the jacking rod 205 passes through the hemispherical block 204 at intervals. When the jacking rod 205 passes through the hemispherical block 204, the hemispherical block 204 pushes the jacking rod 205 to move outward, thereby driving the cleaning block 7 and the steel wire brush 8 to move outward. At this time, the steel wire brush 8 can further clean the wrinkles of the ground-connected wall. At this time, the spring 209 is compressed. When the jacking rod 205 passes through the hemispherical block 204, the spring 209 drives the insertion rod 206 to move towards the mounting cylinder 104, thereby driving the cleaning block 7 and the steel wire brush 8 to return to the original position;

[0066] During the rotation of the transmission rod 4, the transmission gear 101 is driven to rotate, the transmission gear 101 drives the driven gear 102 and the reciprocating screw rod 103, the reciprocating screw rod 103 acts on the bearing seat 107 to drive the mounting cylinder 104 to move back and forth along the reciprocating screw rod 103. At this time, the mounting cylinder 104 drives the transmission cylinder 5 and the connecting cylinder 6 to move back and forth along the transmission rod 4, thereby driving the steel wire brush 8 to move back and forth on the joint of the ground-connected wall, i.e. the mounting cylinder 104 only moves back and forth without rotating, and the transmission cylinder 5 and the connecting cylinder 6 move back and forth and also rotate;

[0067] In the process that the transmission cylinder 5 moves back and forth along the transmission rod 4, air flow is generated in the connecting hole, which flows into the air cavity 201 through the air pipe 202, that is, air flow is generated in the air cavity 201, which can cool the steel wire brush 8 and prevent impurities from accumulating at the steel wire brush 8.

[0068] The application further provides a use method of the wall brushing device of the diaphragm wall joint, which comprises the following steps:

[0069] The wall brushing device is provided, and the fixing cylinder 1 is installed at the joint of the diaphragm wall;

[0070] The transmission rod 4 is rotated to rotate the transmission cylinder 5 and the steel wire brush 8, and the transmission cylinder 5 is moved back and forth along the transmission rod 4 to move the steel wire brush 8 back and forth, so that the steel wire brush 8 cleans the joint of the diaphragm wall.

[0071] The specific operation mode of the use method is as follows:

[0072] The wall brushing device is hoisted to the joint of the diaphragm wall by the lifting lug 3, and then the electric push rod 9 is elongated to support the diaphragm wall by each electric push rod 9, so that the fixing cylinder 1 is fixed at the joint of the diaphragm wall;

[0073] The motor 2 is started to rotate the transmission rod 4, and since the cross section of the transmission rod 4 is non-circular, the transmission cylinder 5 can rotate and move back and forth along the transmission rod 4; the transmission rod 4 rotates the transmission cylinder 5, the transmission cylinder 5 rotates the connecting cylinder 6, and the connecting cylinder 6 rotates the steel wire brush 8, so that the steel wire brush 8 cleans the joint of the diaphragm wall; since the installation cylinder 104 is connected with the connecting cylinder 6 through the connection mode of the half ball block 204 and the annular groove 203, the installation cylinder 104 does not rotate;

[0074] In the process that the connecting cylinder 6 rotates, the jacking rod 205 also rotates around the installation cylinder 104, that is, the jacking rod 205 will pass through the half ball block 204 at intervals; when the jacking rod 205 passes through the half ball block 204, the half ball block 204 pushes the jacking rod 205 to move outward, so as to drive the cleaning block 7 and the steel wire brush 8 to move outward; at this time, the steel wire brush 8 can further clean the wrinkles of the diaphragm wall; at this time, the spring 209 is compressed; when the jacking rod 205 passes through the half ball block 204, the elastic force of the spring 209 drives the inserting rod 206 to move towards the installation cylinder 104, so as to drive the cleaning block 7 and the steel wire brush 8 to return to the original position;

[0075] In the process of the rotation of the transmission rod 4, the transmission gear 101 is driven to rotate, the transmission gear 101 drives the driven gear 102 and the reciprocating screw rod 103, the reciprocating screw rod 103 acts with the bearing seat 107 to drive the installation cylinder 104 to move back and forth along the reciprocating screw rod 103, at this time, the installation cylinder 104 drives the transmission cylinder 5 and the connecting cylinder 6 to move back and forth along the transmission rod 4, thereby driving the steel wire brush 8 to move back and forth on the joint of the ground wall, that is, the installation cylinder 104 only moves back and forth reciprocally without rotation, the transmission cylinder 5 and the connecting cylinder 6 move reciprocally and rotate at the same time.

[0076] In the process of the transmission cylinder 5 moving back and forth along the transmission rod 4, the airflow is generated in the connecting hole, the airflow flows into the air cavity 201 through the air pipe 202, that is, the airflow is generated in the air cavity 201, the airflow can cool the steel wire brush 8 and prevent impurities from accumulating at the steel wire brush 8.

[0077] The above detailed description of the present application is made in combination with the embodiments of the drawings, and those of ordinary skill in the art can make various changes to the present application according to the above description. Thus, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.

Claims

1. A wall brushing device for a diaphragm wall joint, characterised in that, The utility model provides a fixing cylinder for installing in the joint of the diaphragm wall, a transmission rod rotatingly installed in the fixing cylinder, the cross section of the transmission rod being non-circular, a transmission cylinder sleeved on the transmission rod, the transmission cylinder being provided with a connecting hole matched with the transmission rod, and a plurality of steel wire brushes arranged at intervals and installed in the transmission cylinder, the transmission cylinder and the steel wire brushes being rotated by rotating the transmission rod, the transmission cylinder moving back and forth along the transmission rod, the steel wire brushes moving back and forth, and the steel wire brushes cleaning the joint of the diaphragm wall. The utility model further comprises a mounting cylinder sleeved on the transmission cylinder, a plurality of first insertion holes arranged at intervals in the mounting cylinder and parallel to the transmission rod, a bearing seat fixed in the first insertion hole, and a reciprocating wire rod rotatingly installed in the fixing cylinder, inserted in the first insertion hole and screw-connected with the bearing seat, the steel wire brushes being rotatingly connected with the mounting cylinder and fixedly connected with the transmission cylinder. The mounting cylinder and the steel wire brushes move back and forth along the reciprocating wire rod by rotating the reciprocating wire rod, the transmission cylinder moves back and forth along the transmission rod, the transmission rod is rotated, and the fixing cylinder and the steel wire brushes rotate relative to the mounting cylinder. The utility model further comprises a transmission gear fixedly sleeved on the transmission rod and a driven gear fixedly sleeved on the reciprocating wire rod and engaged with the transmission gear. The transmission gear and the driven gear are rotated by rotating the transmission rod, and the reciprocating wire rod is rotated. The utility model further comprises a plurality of second insertion holes arranged at intervals in the mounting cylinder and parallel to the first insertion hole, a limiting hole communicated with the bottom of the second insertion hole and having a diameter larger than that of the second insertion hole, a limiting rod matched with the second insertion hole and fixedly installed in the fixing cylinder, and a limiting block fixedly installed at the bottom end of the limiting rod and matched with the limiting hole. When the limiting block abuts against the bottom end of the second insertion hole or the bottom end of the limiting hole, the mounting cylinder can no longer move upward or downward along the reciprocating wire rod. The utility model further comprises a connecting cylinder sleeved on the mounting cylinder and fixedly connected with the transmission cylinder at the bottom, an annular groove formed in the inner wall of the connecting cylinder, and a plurality of semispherical blocks arranged at intervals on the outer wall of the mounting cylinder and clamped in the annular groove, the steel wire brushes being fixedly installed on the outer side wall of the connecting cylinder. The utility model further comprises a through hole formed in the connecting cylinder and communicated with the annular groove, a top rod inserted in the through hole and partially extending into the annular groove, and a cleaning block fixedly installed at the end of the top rod away from the annular groove and located on the outer side of the connecting cylinder, the steel wire brushes being fixedly installed on the cleaning block.

2. A wall painting device for a diaphragm wall joint as claimed in claim 1, characterised in that, The top rod is rotated around the mounting cylinder by rotating the connecting cylinder, when the part of the top rod located in the annular groove meets the semispherical blocks, the semispherical blocks push the corresponding end of the top rod, the top rod drives the cleaning block and the steel wire brushes to move away from the mounting cylinder. ​ 3. The wall painting device for a diaphragm wall joint as claimed in claim 1, wherein ​ 4. A wall painting device for a diaphragm wall joint as claimed in claim 3, wherein, ​ ​ 5. A wall painting device for a diaphragm wall joint as claimed in claim 4, wherein, Further comprising a groove opened in the outer sidewall of the connecting cylinder and parallel to the top rod, a baffle fixed at the opening of the groove, a plug rod with one end fixed to the cleaning block and penetrating the baffle and the groove, a clamping plate fixed to the other end of the plug rod, and a spring sleeved on the plug rod and located between the baffle and the clamping plate; When the top rod passes through the semi-spherical block, the elastic force of the spring drives the plug rod and the cleaning block to move towards the direction close to the mounting cylinder.

6. The wall painting device for a diaphragm wall joint as claimed in claim 4, wherein Further comprising an air cavity opened in the cleaning block and an air pipe with one end communicated with the air cavity and the other end communicated with the connecting hole, and the steel wire brush is installed in the air cavity.

7. The wall painting device for a diaphragm wall joint as claimed in claim 1, wherein Further comprising a plurality of electric push rods spacedly installed on the outer sidewall of the fixing cylinder and rubber pads fixed to the end of the electric push rods away from the fixing cylinder. By elongating the electric push rods, the rubber pads abut against the diaphragm wall.

8. A method of using a wall brushing device for a wall joint of a slurry wall as defined in claim 1, wherein, The method comprises the following steps: Providing the brush wall device, and installing the fixing cylinder at the joint of the diaphragm wall; Rotating the transmission rod to rotate the transmission cylinder and the steel wire brush, and moving the transmission cylinder back and forth along the transmission rod to drive the steel wire brush to move back and forth, so that the steel wire brush cleans the joint of the diaphragm wall.

Images