Bridge expansion joint rapid caulking material extruder

Abstract

The utility model relates to the field of bridge expansion joints, and discloses a rapid caulking material extruder for a bridge expansion joint. Comprising a shell, and an auger and a motor for driving the auger to rotate are installed at the bottom of the inner wall of the shell; a discharging groove is formed in the upper portion of the inner wall of the shell, a feeding port communicated with the feeding end is formed in the position, at the feeding end of the packing auger, of the discharging groove, and the discharging end of the packing auger is communicated with one end of a feeding pipe located outside the shell; the other end of the feeding pipe is connected with a mounting pipe, and a material extrusion replacement mechanism is arranged on the inner wall of the mounting pipe. The head replacement assembly is arranged, so that a material extrusion head of the extrusion device can be replaced to be matched with a bridge expansion joint, the filling effect of a caulking material on the bridge expansion joint is better, and the filling efficiency is improved; and the auger controlled by the motor is more stable than manual material extrusion, the caulking material is more uniformly extruded into the bridge expansion joint in cooperation with different extrusion heads, and the practicability of the device is further improved.

Description

Bridge Expansion Joint Quick Sealing Material Extruder Technical Field

[0001] This utility model relates to the field of bridge expansion joints, and in particular to a rapid caulking material extruder for bridge expansion joints. Background Technology

[0002] Bridge expansion joints are joints installed between the ends of two beams, between the beam end and the abutment, or at the hinged joints of the bridge to accommodate bridge deck deformation. The expansion joints must be able to expand and contract freely in two directions, parallel and perpendicular to the bridge axis, be strong and reliable, and allow vehicles to pass smoothly without bumps or noise.

[0003] In existing bridge expansion joint caulking processes, to ensure sufficient adhesion of the caulking material to the joint, the effectiveness of the caulking material in areas with special shapes, such as corners, is affected by the extrusion head, which can easily lead to uneven extrusion. This necessitates a device that allows for extrusion head replacement, enabling the extrusion unit to adapt to different caulking environments. Furthermore, during the replacement and cleaning of the extrusion head, the lack of a sealing mechanism can easily cause material overflow, affecting the caulking construction of the expansion joint. Therefore, a rapid caulking material extruder for bridge expansion joints is proposed to solve these problems. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a bridge expansion joint rapid caulking material extruder, which aims to improve the problem in the prior art that "the extruder cannot be used with different extrusion heads to adapt to different construction environments, and during the process of changing and cleaning the extrusion head, there is no sealing of the extrusion head, which easily leads to overflow".

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a rapid caulking material extruder for bridge expansion joints, comprising a housing, wherein an auger and a motor for driving the auger to rotate are installed on the bottom of the inner wall of the housing; a material discharge groove is provided on the upper part of the inner wall of the housing, and an inlet communicating with the material inlet end of the auger is provided at the material inlet end of the material discharge groove; the material discharge end of the auger is connected to one end of a feeding pipe located outside the housing; the other end of the feeding pipe is connected to an installation pipe, and an extrusion replacement mechanism is provided on the inner wall of the installation pipe, the extrusion replacement mechanism including a blocking component and a head changing component. The blocking assembly includes an installation rod and a fixing ring. The installation rod is fixedly connected to the inner wall of the installation tube, and the fixing ring is fixedly connected to the inner wall of the installation tube. A blocking block is fixedly connected to the end of the installation rod. A connecting tube is slidably connected to the inner wall of the fixing ring. A sealing ring that mates with the blocking block is fixedly connected to the end of the connecting tube near the blocking block. The sealing ring and the fixing ring are elastically connected by a spring. The head-changing assembly includes an extrusion head. The extrusion head is threadedly connected to the inner wall of the installation tube. A sealing ring is fixedly connected to the right surface of the extrusion head and abuts against the end face of the connecting tube.

[0006] As a further description of the above technical solution:

[0007] The sealing ring is shaped as a hollow frustum, and the blocking block is shaped as a sphere. The blocking block is disposed inside the sealing ring, and the diameter of the blocking block is larger than the smaller end of the inner diameter of the sealing ring.

[0008] As a further description of the above technical solution:

[0009] The bottom of the housing is fixedly connected to casters, and the inner wall of the material discharge trough is slidably connected to a pull-out cabinet.

[0010] As a further description of the above technical solution:

[0011] The sealing ring is made of rubber.

[0012] As a further description of the above technical solution:

[0013] The left end of the connecting pipe is provided with a protruding ring that slides against the inner wall of the mounting pipe. The sealing ring and the protruding ring prevent the caulking material from contacting the spring.

[0014] As a further description of the above technical solution:

[0015] A handle is fixedly connected to the outer wall of the installation tube.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting a head-changing assembly, the extrusion head of the extrusion device can be replaced to adapt to the bridge expansion joint, so that the caulking material can fill the bridge expansion joint better. Moreover, the auger controlled by the motor is more stable than manual extrusion. With different extrusion heads, the caulking material can be squeezed into the bridge expansion joint more evenly, which further improves the practicality of the device.

[0018] 2. In this utility model, by setting a blocking component, the feeding pipe can be blocked when the extrusion head is replaced, avoiding material overflow during the replacement process. The discharge channel can only be reopened when a new extrusion head is installed, which will not affect the normal operation of the device and further improve the device's performance. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of the overall device in this utility model;

[0020] Figure 2 is a three-dimensional cross-sectional view of the shell in this utility model;

[0021] Figure 3 is a three-dimensional structural disassembly diagram of the blocking component in this utility model;

[0022] Figure 4 is a three-dimensional structural disassembly diagram of the blocking component in this utility model.

[0023] Legend:

[0024] 1. Housing; 2. Casters; 3. Drawer cabinet; 4. Feeding pipe; 5. Mounting pipe; 6. Discharge chute; 7. Motor; 8. Screwdriver; 9. Handle; 10. Mounting rod; 11. Blocking block; 12. Sealing ring; 13. Spring; 14. Fixing ring; 15. Connecting pipe; 16. Sealing ring; 17. Extrusion head; 18. Blocking assembly; 19. Head changing assembly. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Referring to Figures 1, 2, and 3, one embodiment of this utility model is provided: a bridge expansion joint rapid caulking material extruder, including a housing 1 for mounting other components. An auger 8 for conveying caulking material and a motor 7 for driving the auger 8 are rotatably connected to the inner wall of the housing 1. The motor 7 controls the auger 8 to extrude material. A feeding pipe 4 is used to convey material. A discharge trough 6 for placing material is opened on the inner wall of the housing 1. The discharge trough 6 has an inlet at the inlet end of the auger 8, communicating with the inlet end. The outlet end of the auger 8 is connected to one end of the feeding pipe 4 located outside the housing 1. The other end of the feeding pipe 4 is fixedly connected to an installation pipe 5. An extrusion replacement mechanism is provided on the inner wall of the installation pipe 5, which can replace the extrusion head 17 according to different usage requirements. The extrusion replacement mechanism includes... The assembly includes a blocking component 18 and a head-changing component 19. The blocking component 18 includes a mounting rod 10 for mounting a blocking block 11 and a fixing ring 14 for fixing with a spring 13. The mounting rod 10 is fixedly connected to the inner wall of the mounting tube 5, and the fixing ring 14 is fixedly connected to the inner wall of the mounting tube 5. The left end of the mounting rod 10 is fixedly connected to a blocking block 11 for sealing the inner wall of the sealing ring 12. The outer wall of the fixing ring 14 is slidably connected to a connecting tube 15 for linkage with the sealing ring 12. The right end of the connecting tube 15 is fixedly connected to the sealing ring 12. The sealing ring 12 and the blocking block 11 can block the mounting tube 5 when the extrusion head 17 is disassembled to prevent material from flowing out during replacement and affecting the replacement effect. The sealing ring 12 and the fixing ring 14 are elastically connected by a spring 13, which provides elastic force for the movement of the sealing ring 12.

[0027] Referring to Figures 2 and 3, the head changing assembly 19 includes an extrusion head 17 for changing different discharge orifice diameters. The extrusion head 17 is threadedly connected to the inner wall of the mounting tube 5, and the threaded connection makes replacement convenient. A sealing ring 16 for preventing material from entering the threaded connection is fixedly connected to the right surface of the extrusion head 17 and abuts against the end face of the connecting tube 15. A universal wheel 2 for facilitating device movement is fixedly connected to the bottom of the housing 1. A pull-out cabinet 3 for sealing the material inside the housing 1 is slidably connected to the inner wall of the discharge trough 6.

[0028] Referring to Figures 2, 3, and 4, a raised ring that slides against the inner wall of the mounting pipe 5 is provided at the left end of the connecting pipe 15. The sealing ring 12 and the raised ring block the caulking material from contacting the spring 13, ensuring the effectiveness of the spring 13. A handle 9 for convenient control of the extrusion head 17 is fixedly connected to the outer wall of the mounting pipe 5. The inner wall of the sealing ring 12 is shaped as a hollow frustum, which ensures stable material cutting when it cooperates with the blocking block 11 for sealing. The blocking block 11 is spherical in shape to reduce the impact on material flow. The sealing ring 12 is fitted around the blocking block 11, and the diameter of the blocking block 11 is larger than the smaller end of the inner diameter of the sealing ring 12.

[0029] Working principle: During use, motor 7 drives auger 8 to rotate via output shaft. After the operator injects caulking material into the discharge trough 6 through pull-out cabinet 3, the spiral blades of auger 8 push the material to the left along the feeding pipe 4 during rotation. The material is then conveyed to the installation pipe 5 via the feeding pipe 4, and finally extruded continuously and stably from the extrusion head 17. When the extrusion head 17 needs to be replaced, the operator disassembles it by rotating the extrusion head 17. At this time, under the elastic action of spring 13, the sealing ring 12 slides to the right along the connecting pipe 15, allowing the conical surface of the inner wall to seal against the blocking block 11, achieving complete sealing of the installation pipe 5 channel. The material flow is blocked to prevent overflow during the replacement process. When installing the new extrusion head 17, the sealing ring 16 at the left end of the extrusion head 17 first contacts the right end of the connecting pipe 15. As the thread tightening process progresses, the extrusion head 17 pushes the connecting pipe 15 to the left, forcing the sealing ring 12 to compress the spring 13 and disengage from the contact state with the blocking block 11. At this time, the material channel is reopened. The sealing ring 16 is compressed and deformed during the tightening process, forming a seal protection for the thread connecting the extrusion head 17 and the installation pipe 5. The entire process realizes automatic material cutting off and re-opening of the material replacement operation through mechanical linkage. The caster wheel 2 provides the equipment with mobility.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid caulking material extruder for bridge expansion joints, comprising a housing (1), characterized in that: The bottom of the inner wall of the housing (1) is equipped with an auger (8) and a motor (7) for driving the auger (8) to rotate; a discharge trough (6) is provided on the upper part of the inner wall of the housing (1), and the discharge trough (6) is provided with an inlet at the inlet end of the auger (8) that communicates with the inlet end. The outlet end of the auger (8) is connected to one end of a feeding pipe (4) located outside the housing (1); the other end of the feeding pipe (4) is connected to an installation pipe (5), and the inner wall of the installation pipe (5) is provided with a material extrusion replacement mechanism. The material extrusion replacement mechanism includes a blocking component (18) and a head-changing component (19); the blocking component (18) includes an installation rod (10) and a fixing ring (14), and the installation rod (10) is fixedly connected to the installation... The inner wall of the tube (5) is fixedly connected to the inner wall of the mounting tube (5). The end of the mounting rod (10) is fixedly connected to the blocking block (11). The inner wall of the fixing ring (14) is slidably connected to the connecting tube (15). The end of the connecting tube (15) near the blocking block (11) is fixedly connected to the sealing ring (12) that cooperates with the blocking block (11). The sealing ring (12) and the fixing ring (14) are elastically connected by the spring (13). The head changing assembly (19) includes an extrusion head (17). The extrusion head (17) is threadedly connected to the inner wall of the mounting tube (5). The right surface of the extrusion head (17) is fixedly connected to the sealing ring (16) and abuts against the end face of the connecting tube (15).

2. The bridge expansion joint rapid caulking material extruder according to claim 1, characterized in that: The sealing ring (12) is shaped as a hollow frustum, and the blocking block (11) is shaped as a sphere. The blocking block (11) is disposed inside the sealing ring (12), and the diameter of the blocking block (11) is larger than the smaller end of the inner diameter of the sealing ring (12).

3. The bridge expansion joint rapid caulking material extruder according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected with casters (2), and the inner wall of the material trough (6) is slidably connected with a pull-out cabinet (3).

4. The bridge expansion joint rapid caulking material extruder according to claim 1, characterized in that: The sealing ring (16) is made of rubber.

5. The bridge expansion joint rapid caulking material extruder according to claim 1, characterized in that: The left end of the connecting pipe (15) is provided with a protruding ring that slides against the inner wall of the mounting pipe (5). The sealing ring (12) and the protruding ring block the caulking material from contacting the spring (13).

6. The bridge expansion joint rapid caulking material extruder according to claim 1, characterized in that: A handle (9) is fixedly connected to the outer wall of the mounting tube (5).

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