Installation device and installation method of rubber strip for expansion joint

Abstract

The present disclosure relates to the technical field of installation and construction of expansion joints of ballastless tracks, and in particular to a rubber strip installation device and installation method for expansion joints. The device comprises a first traction unit provided with a first winding roller, a second traction unit provided with a second winding roller, and at least one pair of extrusions, wherein the first winding roller is provided with a first traction rope, the first traction rope is provided with a clamping member, the clamping member is used to clamp the expansion band of the rubber strip in a contracted state, the extrusions are connected with a second traction rope, the second traction rope is used to cooperate with the second winding roller, and the extrusions match the shape of the large cavity of the expansion joint. By setting the above-mentioned first traction unit, the second traction unit and the extrusion, effective traction and positioning of the rubber strip can be achieved, and by setting the clamping member, rapid traction of the rubber strip can be achieved, and by setting the second traction rope and the second winding roller separately, the overall process is made more flexible and convenient, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of installation and construction of ballastless track expansion joints, and in particular to an installation device and an installation method for a rubber strip for an expansion joint. Background Art

[0002] In the prior art, the expansion joint is generally set between two ballastless tracks. The two adjacent ballastless tracks are provided with profiles on the side close to each other. The two profiles are provided with cavities on the side close to each other. The rubber strip generally includes a telescopic belt located in the middle and fixed belts arranged at both ends of the telescopic belt. In the actual construction process, we need to install the fixed belt between the cavity. The staff can only pull the rubber strip and the extrusion part through ordinary winding rollers. The pulling equipment is single and unsystematic. Only when the rubber strip of one expansion joint is completely installed can the construction of the next rubber strip be continued, so the construction efficiency is low. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a rubber strip installation device and an installation method for expansion joints.

[0004] The present invention provides a rubber strip installation device for expansion joints, comprising a first traction unit provided with a first winding roller, a second traction unit provided with a second winding roller, and at least one pair of extrusion pieces, wherein the first winding roller is provided with a first traction rope, the first traction rope is provided with a clamping piece, the clamping piece is used to clamp the expansion band of the rubber strip in a contracted state, the extrusion pieces are connected with the second traction rope, the second traction rope is used to cooperate with the second winding roller, and the extrusion pieces match the shape of a large cavity of the expansion joint.

[0005] Optionally, two pairs of extrusions are provided.

[0006] Optionally, the second traction unit includes a base, the second winding roller is arranged on the base, and the second traction unit also includes a bracket provided with a first fixed pulley, the base is arranged on the protective wall on one side of the expansion joint, and the bracket is arranged on the vertical wall on the other side of the expansion joint.

[0007] Optionally, the bracket includes a pulley portion and a clamping and fixing portion, the clamping and fixing portion includes a connecting member and a first clamping portion and a second clamping portion arranged at both ends of the connecting member, the connecting member is used to be arranged in a gap formed by two adjacent vertical walls, the first clamping portion and the second clamping portion are used to clamp on the inner and outer sides of the vertical wall respectively, the pulley portion can be fixed to the inner side of the vertical wall through the first clamping portion, and the first fixed pulley is arranged on the pulley portion.

[0008] Optionally, the pulley portion includes a pair of substrates and a connecting rod arranged between the pair of substrates, the first fixed pulley is sleeved on the connecting rod, and a plurality of sockets for fixing the connecting rod are arranged at equal vertical intervals on the substrate, and the first clamping portion is used to clamp the pair of substrates on both sides of the gap respectively.

[0009] Optionally, the connecting member is a rod-shaped structure, one end of the connecting member is fixedly connected to the second clamping portion, the other end of the connecting member is provided with a thread and connected with a bolt, and the first clamping portion is provided with a through hole matching the connecting member.

[0010] Optionally, a pair of clamping plates are provided at the bottom end of the base, and the clamping plates are used to clamp on both sides of the protective wall.

[0011] Optionally, the first traction unit includes a fixed frame, on which are provided a rotating handle, a first transmission gear, a second transmission gear and a first winding roller, the rotating handle is used to drive the first transmission gear to rotate, the first transmission gear and the second transmission gear are meshed with each other, the second transmission gear is used to drive the first winding roller to rotate, and the diameter of the first transmission gear is smaller than the diameter of the second transmission gear.

[0012] Optionally, a second fixed pulley is further provided at the bottom of the fixing frame.

[0013] A method for installing a rubber strip for an expansion joint, comprising an installation device for the rubber strip for an expansion joint, and further comprising the following steps:

[0014] Step 1: a pair of second traction ropes are arranged in the large cavity of the first-level expansion joint, and then a first traction unit and a second traction unit are installed at the end of the first-level expansion joint, and the rubber strip is pulled into the large cavity of the first-level expansion joint by the first traction unit. When the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out;

[0015] Step 2: first install the idle second traction rope in the next-level expansion joint, and install the first traction unit that has been removed in the previous-level expansion joint, and use the first traction unit to pull the rubber strip; complete the traction of the extrusion piece by the second traction unit in the previous-level expansion joint, so that both sides of the rubber strip enter the corresponding small cavity. When the traction of the second traction unit of the previous-level expansion joint is completed, the second traction unit is removed and installed in the current expansion joint; when the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out;

[0016] Step 3: Repeat step 2 above.

[0017] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0018] By setting the above-mentioned first traction unit, second traction unit and extrusion member, effective traction and positioning of the rubber strip can be achieved. By setting the clamping member, rapid traction of the rubber strip can be achieved. By separating the second traction rope and the second winding roller, the overall process is made more flexible and convenient, and the construction efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a schematic diagram of the traction structure of the first winding roller on the rubber strip telescopic belt in the present disclosure;

[0022] Figure 2 It is a schematic diagram of the traction structure of the second winding roller on the extrusion member in the present disclosure;

[0023] Figure 3 It is a schematic diagram of the structure of the extrusion piece entering the large cavity in the present disclosure;

[0024] Figure 4 It is a cross-sectional view of the connection between the bracket and the vertical wall in the present disclosure;

[0025] Figure 5 It is a top view of the connection between the bracket and the vertical wall in the present disclosure.

[0026] Among them, 11, the first winding roller; 12, the clamping member; 13, the fixing frame; 14, the rotating handle; 15, the first transmission gear; 16, the second transmission gear; 17, the second fixed pulley; 21, the second winding roller; 22, the extrusion member; 23, the base; 24, the clamping plate; 25, the extrusion wheel; 26, the rolling wheel; 31, the connecting member; 32, the first clamping part; 33, the second clamping part; 34, the base plate; 35, the connecting rod; 36, the first fixed pulley; 37, the socket; 38, the bolt; 41, the large cavity; 42, the small cavity; 51, the protective wall; 61, the vertical wall; 62, the gap; 71, the fixing belt; 72, the telescopic belt. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] See also Figures 1 to 3 The present invention provides a rubber strip installation device for expansion joints, including a first traction unit provided with a first winding roller 11 and a second traction unit provided with a second winding roller 21, a clamping member 12 is provided on the traction rope of the first winding roller 11, and the clamping member 12 is used to clamp the expansion belt 72 of the rubber strip in a contracted state, and an extrusion member 22 is provided on the traction rope of the second winding roller 21, and the extrusion member 22 matches the shape of the large cavity 41 of the expansion joint.

[0030] In the prior art, the expansion joint is generally arranged between two ballastless tracks, and profiles are provided on the sides of the two adjacent ballastless tracks close to each other, and cavities are provided on the sides of the two profiles close to each other, and the rubber strip generally includes an expansion belt 72 located in the middle and fixed belts 71 arranged at both ends of the expansion belt 72. In the actual construction process, we need to install the fixed belt 71 between the cavity.

[0031] Since the cavity groove generally includes a large cavity 41 away from the rubber strip and a small cavity 42 close to the rubber strip, when installing, we generally first install the fixing belt 71 into the large cavity 41 by manual or pulling, and set the extrusion piece 22 in the large cavity 41, and then pull the extrusion piece 22 along the length direction of the expansion joint so that the extrusion piece 22 squeezes the fixing belt 71, so that the fixing belt 71 enters the small cavity 42 from the large cavity 41. Since the shape of the small cavity 42 is more matched with the shape of the fixing belt 71, after the fixing belt 71 enters the small cavity 42, the overall waterproof effect of the rubber strip is better.

[0032] In the prior art, workers can only pull the fixing belt 71 and the extrusion member 22 through ordinary winding rollers. The pulling equipment is single and unsystematic, and the construction of the next rubber strip can only be continued after the rubber strip of a construction joint is completely installed. Therefore, the construction efficiency is low.

[0033] In this embodiment, a rubber strip installation device for expansion joints is provided in the system, thereby improving the installation efficiency of the rubber strips for expansion joints.

[0034] In the actual construction process, the two second traction ropes are first placed in the large cavities 41 of the two profiles respectively, one end of the second traction rope extends out of the profile and is connected to the extrusion piece 22, and the other end extends out of the profile and is connected to the winding roller of the second traction unit.

[0035] Then, the fixing belt 71 is docked with the opening of the large cavity 41 of the profile, so that the end of the fixing belt 71 enters the large cavity 41, and then the clamping piece 12 is clamped on the telescopic belt 72, and the first winding roller 11 is rotated to make the first winding roller 11 drive the first traction rope and the clamping piece 12 to move, thereby realizing the traction of the telescopic belt 72. During the traction process, the fixing belt 71 of the rubber strip continuously enters the large cavity 41 of the profile.

[0036] When the fixing belt 71 of the rubber strip is completely pulled into the large cavity 41, it is necessary to move the fixing belt 71 from the large cavity 41 to the small cavity 42. At this time, the second winding roller 21 is rotated to drive the second traction rope and the extrusion member 22 to move. After the extrusion member 22 enters the large cavity 41, the fixing belt 71 is squeezed into the small cavity 42 accordingly, thereby completing the final adjustment of the fixing belt 71. During the traction process of the extrusion member 22, the user can construct the two profiles of each expansion joint simultaneously or separately according to needs. In order to make the operation of the extrusion member 22 more flexible, the second traction rope can be set separately from the second winding roller 21. When the extrusion member 22 needs to be pulled, the second traction rope is connected to the second winding roller 21.

[0037] By setting the above-mentioned first traction unit, the second traction unit and the extrusion member 22, effective traction and positioning of the rubber strip can be achieved. By setting the clamping member 12, rapid traction of the rubber strip can be achieved. By separating the second traction rope and the second winding roller 21, the overall process is made more flexible and convenient, and the construction efficiency is effectively improved.

[0038] In some embodiments, two pairs of extrusion pieces 22 are provided. This embodiment also provides a method for installing a rubber strip for an expansion joint, including a rubber strip installation device for an expansion joint, and further comprising the following steps:

[0039] Step 1: a pair of second traction ropes are arranged in the large cavity 41 of the first-level expansion joint, and then a first traction unit and a second traction unit are installed at the end of the first-level expansion joint, and the rubber strip is pulled into the large cavity 41 of the first-level expansion joint by the first traction unit. When the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out;

[0040] Step 2: first install the idle second traction rope in the next-level expansion joint, and install the first traction unit that has been removed in the previous-level expansion joint, and use the first traction unit to pull the rubber strip; complete the traction of the extrusion piece 22 by the second traction unit in the previous-level expansion joint, so that both sides of the rubber strip enter the corresponding small cavity 42. When the traction of the second traction unit of the previous-level expansion joint is completed, the second traction unit is removed and installed in the current expansion joint; when the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out;

[0041] Step 3: Repeat step 2 above.

[0042] In the above method, two pairs of extrusion members 22 are provided, and the above method will be described in more detail below.

[0043] In step 1, when constructing the first expansion joint, we first need to install a pair of second traction ropes with extrusions 22 in the profile. This is because each expansion joint has two profiles, and the corresponding rubber strips are also provided with two fixing belts 71. If the fixing belts 71 are installed first, the extrusions 22 cannot be installed later. Therefore, we first pre-install the second traction ropes with extrusions 22 in the two profiles. Since there are two pairs of extrusions 22, only one pair is used at this time, so there is one pair of extrusions 22 left in an idle state.

[0044] Then, the expansion belt 72 can be pulled by the first traction unit to make the fixing belt 71 run into the large cavity 41 of the corresponding profile. When the fixing belt 71 reaches the designed position, i.e., the large cavity 41, the first traction unit is temporarily not needed for the first expansion joint, so the first traction unit can be removed. At this time, the first traction unit is in an idle state and can be used for the construction of the second expansion joint.

[0045] In step 2, the idle first traction unit can be installed to the design position of the second expansion joint. Before traction of the rubber strip of the second expansion joint, the idle second traction rope and extrusion 22 in the above step need to be placed in the profile corresponding to the second expansion joint in advance. Then the traction of the rubber strip of the second expansion joint can be carried out. At the same time, in the first expansion joint, the extrusion 22 can be pulled by the second traction unit so that the fixing belt 71 in the first expansion joint runs into the corresponding small cavity 42. At this time, the second traction unit and the second traction rope with the extrusion 22 located in the first expansion joint are also in an idle state. Therefore, the second traction unit can be removed from the first expansion joint, so that it can be used for the construction of the second expansion joint, and the extrusion 22 after the use of the first expansion joint can be used for the construction of the third construction joint. Since the first traction unit has completed the traction of the second expansion joint fixing belt 71, the first traction unit is also in an idle state at this time and can be used for the construction of the third expansion joint.

[0046] In step three, the second traction rope and extrusion 22 idle in the first expansion joint can be installed in the profile of the third construction joint, and then the rubber strip of the third construction joint is pulled by the first traction unit idle in the second expansion joint, and at the same time, the extrusion 22 of the second expansion joint is pulled by the second traction unit, and then the second traction unit is removed for use in the third expansion joint, and so on, which will not be repeated here.

[0047] In the prior art, generally only a single expansion joint can be constructed. For example, after the fixing belt 71 is pulled, the extrusion piece 22 is pulled. After the extrusion piece 22 is pulled, the next expansion joint can be constructed. In this solution, by providing a first pulling unit, a second pulling unit and two pairs of extrusion pieces 22, the cyclic construction of the expansion joint can be effectively completed. After the first expansion joint, the first pulling unit and the second pulling unit can be constructed simultaneously and continuously cyclically, thereby effectively increasing the work efficiency.

[0048] See also Figure 2 In some embodiments, the second traction unit includes a base 23, the second winding roller 21 is arranged on the base 23, and the second traction unit also includes a bracket provided with a first fixed pulley 36, the base 23 is arranged on the protective wall 51 on one side of the expansion joint, and the bracket is arranged on the vertical wall 61 on the other side of the expansion joint.

[0049] In the above embodiment, the setting position of the second traction unit is optimized. In actual construction, the length of the expansion joint is relatively long, generally more than 12 meters. If the second traction unit is only set at one end of the expansion joint, the extrusion member 22 enters the large cavity 41 from the other end of the expansion joint. Since the shape of the extrusion member 22 matches the large cavity 41, it is necessary to manually align the extrusion member 22 with the large cavity 41 to facilitate the entry of the extrusion member 22. However, the initial entry position of the extrusion member 22 is far away from the second winding roller 21, which makes it inconvenient for the staff to connect with each other. That is, the staff operating the second winding roller 21 does not know when to wind the wire, and cannot observe the entry of the extrusion member 22, which causes inconvenience to the construction to a certain extent.

[0050] Therefore, this solution makes use of the inherent conditions of the expansion joint construction environment, sets a second winding roller 21 on the protective wall 51 on one side of the expansion joint, and sets a first fixed pulley 36 on the vertical wall 61 on the other side of the expansion joint. Through the changing function of the first fixed pulley 36, the initial entry position of the extrusion member 22 and the second winding roller 21 are achieved on the same side, thereby effectively improving construction efficiency.

[0051] It should be emphasized that, due to the provision of the first fixed pulley 36, the traction direction of the second traction rope on the extrusion member 22 can be parallel to the expansion joint, thereby optimizing the traction effect. And due to the height of the protective wall 51 itself, the second winding roller 21 can be located at a relatively high position, which is convenient for the staff to exert force, that is, there is no need to have too many requirements on the height direction of the base 23, thereby simplifying the structure of the base 23 and reducing the workpiece cost to a certain extent.

[0052] See also Figure 2 , Figure 4 as well as Figure 5In some embodiments, the bracket includes a pulley portion and a clamping and fixing portion, the clamping and fixing portion includes a connecting member 31 and a first clamping portion 32 and a second clamping portion 33 arranged at both ends of the connecting member 31, the connecting member 31 is used to be arranged in a gap 62 formed by two adjacent vertical walls 61, the first clamping portion 32 and the second clamping portion 33 are used to clamp on the inner and outer sides of the vertical wall 61 respectively, the pulley portion can be fixed to the inner side of the vertical wall 61 through the first clamping portion 32, and the first fixed pulley 36 is arranged on the pulley portion.

[0053] Since the extrusion piece 22 encounters a large resistance during the actual traction process, it is necessary to effectively fix the bracket and the base 23 to ensure smooth traction. In the above embodiment, the bracket structure is further disclosed. In the actual construction environment, the vertical wall 61 is also segmented, and a gap 62 will be formed between two adjacent vertical walls 61. This solution effectively utilizes the gap 62 to achieve effective fixation of the bracket and the pulley part. The above method first utilizes the structure of the vertical wall 61 itself, which can effectively reduce the fixing cost of the bracket, and at the same time, it can also make the first fixed pulley 36 located at a lower position, thereby ensuring the traction effect. The structure is relatively simple, and the main body of the structure is concentrated on the wall surface of the vertical wall 61, which can effectively increase the space utilization efficiency and provide sufficient operating space for other construction.

[0054] In some embodiments, the pulley portion includes a pair of substrates 34 and a connecting rod 35 arranged between the pair of substrates 34, the first fixed pulley 36 is sleeved on the connecting rod 35, and a plurality of sockets 37 for fixing the connecting rod 35 are arranged at equal intervals along the vertical direction on the substrate 34, and the first clamping portion 32 is used to clamp the pair of substrates 34 on both sides of the gap 62 respectively.

[0055] In the above embodiment, the setting of the first fixed pulley 36 is optimized. By setting the socket 37, the height of the connecting rod 35 can be effectively adjusted, so that the staff can adjust the height of the first fixed pulley 36 according to the specific construction environment, thereby improving the traction efficiency of the extrusion member 22.

[0056] Furthermore, the method of clamping and fixing the substrate 34 by the first clamping part 32 is relatively convenient and quick, and no other fixing parts are required. Since the substrate 34 and the first clamping part 32 are actually separately arranged, preferably, matching positioning parts can be arranged on the substrate 34 and the first clamping part 32, for example, a clamping strip is arranged on the substrate 34, and a clamping groove is arranged on the first clamping part 32. By aligning the clamping strip with the clamping groove, the substrate 34 can be ensured not to be misaligned during the fixing process of the substrate 34 and the first clamping part 32, thereby improving work efficiency.

[0057] See also Figure 4 and Figure 5In some embodiments, the connecting member 31 is a rod-shaped structure, one end of the connecting member 31 is fixedly connected to the second clamping portion 33, the other end of the connecting member 31 is provided with a thread and connected with a bolt 38, and the first clamping portion 32 is provided with a through hole matching the connecting member 31.

[0058] In the above embodiment, the fixing method of the first clamping part 32 and the connecting member 31 is specifically disclosed. The through hole of the first clamping part 32 can be inserted into the connecting member 31, and then the bolt 38 is screwed to gradually bring the first clamping part 32 and the second clamping part 33 closer to each other, thereby achieving a fixing effect.

[0059] In some embodiments, two first fixed pulleys 36 are disposed on the connecting rod 35 .

[0060] In the above embodiment, the number of first fixed pulleys 36 is optimized. When two extrusion members 22 of an expansion joint are constructed simultaneously, two first fixed pulleys 36 can be provided to ensure smooth implementation of the traction of the extrusion members 22 .

[0061] See also Figure 2 In some embodiments, a pair of clamping plates 24 are provided at the bottom end of the base 23 , and the clamping plates 24 are used to clamp on both sides of the protective wall 51 .

[0062] In the above embodiment, the fixing method of the base 23 is specifically disclosed. By utilizing the structural characteristics of the protective wall 51 and providing a pair of clamping plates 24, the base 23 can be effectively fixed. The structure is simple and the installation process is convenient and quick.

[0063] See also Figure 1 In some embodiments, the first traction unit includes a fixed frame 13, on which a rotating handle 14, a first transmission gear 15, a second transmission gear 16 and a first winding roller 11 are provided. The rotating handle 14 is used to drive the first transmission gear 15 to rotate, and the first transmission gear 15 and the second transmission gear 16 are meshed with each other. The second transmission gear 16 is used to drive the first winding roller 11 to rotate, and the diameter of the first transmission gear 15 is smaller than the diameter of the second transmission gear 16.

[0064] In the above embodiment, the structure of the fixing frame 13 is specifically disclosed. Since there is a large resistance between the fixing belt 71 of the rubber strip and the large cavity 41, traction can be performed through gear transmission, thereby making the traction process more efficient, labor-saving and stable.

[0065] See also Figure 1 In some embodiments, a second fixed pulley 17 is further provided at the bottom of the fixing frame 13 .

[0066] In the above embodiment, the second fixed pulley 17 is provided to change the direction of the first traction rope, so that the traction direction of the clamping member 12 is parallel to the direction of the expansion joint, thereby optimizing the traction effect.

[0067] See also Figure 3 In some embodiments, an extrusion wheel 25 is provided at one end of the extrusion member 22 close to the rubber strip, and a rolling wheel 26 is provided at one end of the extrusion member 22 away from the rubber strip.

[0068] In the above embodiment, the structure of the extrusion piece 22 is specifically disclosed. By providing the extrusion wheel 25 and the rolling wheel 26, the resistance of the extrusion piece 22 moving in the large cavity 41 can be effectively reduced, thereby optimizing the traction effect.

[0069] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0070] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for installing a rubber strip for an expansion joint. It is characterized in that The invention comprises a rubber strip installation device for an expansion joint, the installation device comprising a first traction unit provided with a first winding roller (11), a second traction unit provided with a second winding roller (21), and at least one pair of extrusion members (22), the first winding roller (11) being provided with a first traction rope, the first traction rope being provided with a clamping member (12), the clamping member (12) being used for clamping an expansion belt (72) of the rubber strip in a contracted state, the extrusion members (22) being connected with a second traction rope, the second traction rope being used for cooperating with the second winding roller (21), the extrusion members (22) matching the shape of a large cavity (41) of the expansion joint; The following steps are also included: Step 1: a pair of second traction ropes are arranged in the large cavity (41) of the first-level expansion joint, and then a first traction unit and a second traction unit are installed at the end of the first-level expansion joint, and the rubber strip is pulled into the large cavity (41) of the first-level expansion joint by the first traction unit. When the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out; Step 2: first install an idle second traction rope in the next-level expansion joint, and install the first traction unit that has been removed from the previous-level expansion joint, and use the first traction unit to pull the rubber strip; complete the traction of the extrusion piece (22) by the second traction unit in the previous-level expansion joint, so that both sides of the rubber strip enter the corresponding small cavity (42); when the traction of the second traction unit of the previous-level expansion joint is completed, the second traction unit is removed and installed in the current expansion joint; when the traction of the first traction unit is completed, the first traction unit is removed, and the construction of the next-level expansion joint is carried out; Step 3: Repeat step 2 above.

2. The method for installing a rubber strip for expansion joints according to claim 1, It is characterized in that The extrusion pieces (22) are provided in two pairs.

3. The method for installing a rubber strip for expansion joints according to claim 2, It is characterized in that The second traction unit comprises a base (23), the second winding roller (21) is arranged on the base (23), the second traction unit further comprises a bracket provided with a first fixed pulley (36), the base (23) is arranged on a protective wall (51) on one side of the expansion joint, and the bracket is arranged on a vertical wall (61) on the other side of the expansion joint.

4. The method for installing a rubber strip for an expansion joint according to claim 3, It is characterized in that The bracket comprises a pulley portion and a clamping and fixing portion, the clamping and fixing portion comprises a connecting member (31) and a first clamping portion (32) and a second clamping portion (33) arranged at two ends of the connecting member (31), the connecting member (31) is used to be arranged in a gap (62) formed by two adjacent vertical walls (61), the first clamping portion (32) and the second clamping portion (33) are used to clamp the inner and outer sides of the vertical wall (61) respectively, the pulley portion can be fixed to the inner side of the vertical wall (61) through the first clamping portion (32), and the first fixed pulley (36) is arranged on the pulley portion.

5. The method for installing a rubber strip for expansion joints according to claim 4, It is characterized in that The pulley portion comprises a pair of base plates (34) and a connecting rod (35) arranged between the pair of base plates (34); the first fixed pulley (36) is sleeved on the connecting rod (35); a plurality of jacks (37) for fixing the connecting rod (35) are arranged at equal intervals in the vertical direction on the base plates (34); and the first clamping portion (32) is used to clamp the pair of base plates (34) on both sides of the gap (62) respectively.

6. The method for installing a rubber strip for expansion joints according to claim 5, It is characterized in that The connecting member (31) is a rod-shaped structure, one end of the connecting member (31) is fixedly connected to the second clamping portion (33), the other end of the connecting member (31) is provided with a thread and connected to a bolt (38), and the first clamping portion (32) is provided with a through hole matching the connecting member (31).

7. The method for installing a rubber strip for an expansion joint according to claim 3, It is characterized in that A pair of clamping plates (24) are provided at the bottom end of the base (23), and the clamping plates (24) are used to clamp onto two sides of the protective wall (51).

8. The method for installing a rubber strip for an expansion joint according to claim 1, It is characterized in that The first traction unit comprises a fixed frame (13), the fixed frame (13) being provided with a rotating handle (14), a first transmission gear (15), a second transmission gear (16) and the first winding roller (11), the rotating handle (14) being used to drive the first transmission gear (15) to rotate, the first transmission gear (15) and the second transmission gear (16) being meshed with each other, the second transmission gear (16) being used to drive the first winding roller (11) to rotate, and the diameter of the first transmission gear (15) being smaller than the diameter of the second transmission gear (16).

9. The method for installing a rubber strip for an expansion joint according to claim 8, It is characterized in that A second fixed pulley (17) is also provided at the bottom of the fixed frame (13).

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