Construction joint processing device for tunnel engineering construction
By designing a construction joint treatment device with a scraper assembly and a negative pressure chamber, the problems of difficulty in collecting and splashing of scraped colloids in existing technologies have been solved, achieving efficient collection and treatment of colloids on the surface of construction joints.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-05
AI Technical Summary
Existing tunnel construction joint treatment devices often result in inaccurate collection of the scraped adhesive when smoothing construction joints at higher locations, and the adhesive tends to splatter, causing inconvenience in the treatment process.
A construction joint treatment device including a scraper assembly and a negative pressure chamber was designed. The scraper assembly collects the colloid through a scraper and a receiving trough. The negative pressure chamber works with the suction pipe assembly to draw the colloid into the receiving trough, thus achieving complete collection of the colloid.
It enables the effective collection and treatment of excess adhesive on the surface of construction joints, preventing adhesive overflow and improving the efficiency and safety of construction joint treatment.
Smart Images

Figure CN224326281U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tunnel engineering construction technology, and specifically relates to a construction joint treatment device for tunnel engineering construction. Background Technology
[0002] During tunnel construction, construction joints are inevitably generated due to factors such as construction technology, construction period, and structural design. The common way to deal with these construction joints is to fill them with special filler. According to the search, a Chinese patent application with application number CN202323584837.9 describes a construction joint treatment device for tunnel construction. In this patent, a designed scraper can scrape off excess filler and quickly smooth it out, while the scraped-off filler is collected by a receiving plate.
[0003] However, the above-mentioned patent still has some shortcomings in actual use. When smoothing construction joints at higher positions, the scraped adhesive will fall a long distance. On the one hand, the receiving plate is not easy to catch accurately, and on the other hand, the adhesive is easy to splash after falling. Therefore, a new construction joint treatment device needs to be designed to solve this problem. Utility Model Content
[0004] The purpose of this utility model is to provide a construction joint treatment device for tunnel engineering construction, so as to solve the problem of inconvenience in collecting the scraped adhesive in the aforementioned patent mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a construction joint treatment device for tunnel engineering, comprising...
[0006] Workbench, and an electrically operated telescopic rod rotatably connected to the surface of the workbench;
[0007] The scraper assembly includes a connecting strip fixedly connected to the end of an electric telescopic rod, a receiving groove connected to one side of the connecting strip, a scraper fixedly disposed inside the receiving groove and extending out at one end, and two connecting rods connected between the connecting strip and the receiving groove, wherein the connecting rods slide through the connecting strip;
[0008] A negative pressure chamber fixed to the top surface of the workbench;
[0009] The suction tube assembly includes a connecting frame fixed to the top of the connecting strip, a main tube connecting the connecting frame and the negative pressure chamber, and two branch tubes connecting the connecting frame and the receiving trough, the two branch tubes being distributed vertically.
[0010] Preferably, a rotating connection assembly is provided between the workbench and the end of the electric telescopic rod. The rotating connection assembly includes a rotating connection seat and a motor. The end of the electric telescopic rod is rotatably connected to the rotating connection seat. The motor is located on the top surface of the workbench, and its output end is fixed to the end of the electric telescopic rod.
[0011] Preferably, the scraper assembly further includes a spring, which is sleeved on the outside of the connecting rod and abuts against the connecting bar and the receiving groove.
[0012] Preferably, the scraper assembly further includes an anti-detachment plate, which is fixed to the extended end of the connecting rod.
[0013] Preferably, the scraper assembly further includes flow guide grooves, which are symmetrically distributed on the upper and lower surfaces of the scraper.
[0014] Preferably, the scraper assembly further includes a fixing rod, which is fixedly connected between the scraper and the inside of the receiving trough.
[0015] Preferably, the bottom of the workbench is provided with a shear lifting base, and a push handle is fixed on one side of the workbench.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] The designed scraper assembly can handle excess adhesive on the surface of construction joints. Since the receiving groove is designed on the outside of the scraper, no matter where the construction joint is smoothed, the adhesive that falls off will fall into the receiving groove and be collected. At the same time, the designed negative pressure chamber and suction pipe assembly can suck out the adhesive collected in the receiving groove to prevent the adhesive from overflowing. With the cooperation of the above structures, the scraped adhesive can be collected and processed properly. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 This is a three-dimensional schematic diagram of the scraper assembly of this utility model;
[0020] Figure 3 This utility model Figure 1 Enlarged view of area A in the middle;
[0021] Figure 4 This is a cross-sectional view of the inside of the receiving groove of this utility model;
[0022] In the diagram: 100, workbench; 200, electric telescopic rod; 300, scraper assembly; 301, connecting strip; 302, receiving trough; 303, scraper; 304, connecting rod; 305, spring; 306, anti-detachment plate; 307, guide channel; 308, fixing rod; 400, rotating connection assembly; 401, rotating connection seat; 402, motor; 500, negative pressure chamber; 600, suction pipe assembly; 601, connecting frame; 602, main pipe; 603, branch pipe; 700, shear lifting base; 800, push handle. Detailed Implementation
[0023] 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. Example
[0024] Please see Figures 1 to 4 This embodiment provides a technical solution: a construction joint treatment device for tunnel engineering, comprising...
[0025] Workbench 100, and an electric telescopic rod 200 rotatably connected to the surface of workbench 100;
[0026] The scraper assembly 300 includes a connecting strip 301 fixedly connected to the end of the electric telescopic rod 200, a receiving groove 302 connected to one side of the connecting strip 301, a scraper 303 fixedly installed inside the receiving groove 302 with one end protruding, and two connecting rods 304 connected between the connecting strip 301 and the receiving groove 302. The connecting rods 304 slide through the connecting strip 301. By activating the electric telescopic rod 200, the scraper assembly 300 is extended, so that the scraper 303 contacts the construction joint. By rotating the electric telescopic rod 200, the scraper 303 can smooth the construction joint, and the scraped adhesive will fall into the receiving groove 302.
[0027] The negative pressure chamber 500, fixed to the top surface of the workbench 100, provides suction.
[0028] The suction tube assembly 600 includes a connecting frame 601 fixed to the top of the connecting strip 301, a main pipe 602 connecting the connecting frame 601 and the negative pressure chamber 500, and two branch pipes 603 connecting the connecting frame 601 and the receiving trough 302. The two branch pipes 603 are distributed vertically. When the negative pressure chamber 500 is activated, the colloid inside the receiving trough 302 can be sucked out through the suction tube assembly 600.
[0029] In this embodiment, preferably, a rotating connection assembly 400 is provided between the workbench 100 and the end of the electric telescopic rod 200. The rotating connection assembly 400 includes a rotating connection seat 401 and a motor 402. The end of the electric telescopic rod 200 is rotatably connected to the rotating connection seat 401. The motor 402 is disposed on the top surface of the workbench 100, and its output end is fixed to the end of the electric telescopic rod 200. The motor 402 can drive the electric telescopic rod 200 to rotate.
[0030] In this embodiment, preferably, the scraper assembly 300 further includes a spring 305, which is sleeved on the outside of the connecting rod 304 and abuts against the connecting strip 301 and the receiving groove 302, so that the scraper 303 and the receiving groove 302 can adaptively retract, and the scraper 303 can be tightly abutted against the construction joint by the elastic force of the spring 305.
[0031] In this embodiment, preferably, the scraper assembly 300 further includes an anti-detachment piece 306, which is fixed to the extended end of the connecting rod 304 to prevent the connecting rod 304 from falling off.
[0032] In this embodiment, preferably, the scraper assembly 300 further includes a guide groove 307, which is symmetrically distributed on the upper and lower surfaces of the scraper 303. The colloid scraped off by the scraper 303 can flow into the receiving groove 302 along the guide groove 307.
[0033] In this embodiment, preferably, the scraper assembly 300 further includes a fixing rod 308, which is fixedly connected between the scraper 303 and the inside of the receiving groove 302, so that there is a gap between the tail end of the scraper 303 and the receiving groove 302, and the colloid flowing along the guide groove 307 can flow into the inside of the receiving groove 302 through the gap.
[0034] In this embodiment, preferably, the bottom of the workbench 100 is provided with a shear lifting base 700, which can lift the entire device. A push handle 800 is fixed on one side of the workbench 100 to facilitate pushing the device.
[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A construction joint treatment device for tunnel engineering, characterized in that: include Workbench (100), and an electric telescopic rod (200) rotatably connected to the surface of the workbench (100). The scraper assembly (300) includes a connecting strip (301) fixedly connected to the end of the electric telescopic rod (200), a receiving groove (302) connected to one side of the connecting strip (301), a scraper (303) fixedly disposed inside the receiving groove (302) and extending out at one end, and two connecting rods (304) connected between the connecting strip (301) and the receiving groove (302), wherein the connecting rods (304) slide through the connecting strip (301); A negative pressure chamber (500) is fixed on the top surface of the workbench (100). The suction tube assembly (600) includes a connecting frame (601) fixed to the top of the connecting strip (301), a main tube (602) connecting the connecting frame (601) and the negative pressure chamber (500), and two branch tubes (603) connecting the connecting frame (601) and the receiving trough (302), the two branch tubes (603) being distributed vertically.
2. The construction joint treatment device for tunnel engineering construction according to claim 1, characterized in that: A rotating connection assembly (400) is provided between the workbench (100) and the end of the electric telescopic rod (200). The rotating connection assembly (400) includes a rotating connection seat (401) and a motor (402). The end of the electric telescopic rod (200) is rotatably connected to the rotating connection seat (401). The motor (402) is located on the top surface of the workbench (100), and its output end is fixed to the end of the electric telescopic rod (200).
3. The construction joint treatment device for tunnel engineering construction according to claim 2, characterized in that: The scraper assembly (300) also includes a spring (305) which is sleeved on the outside of the connecting rod (304) and abuts against the connecting bar (301) and the receiving groove (302).
4. The construction joint treatment device for tunnel engineering construction according to claim 3, characterized in that: The scraper assembly (300) also includes an anti-detachment plate (306) fixed to the protruding end of the connecting rod (304).
5. The construction joint treatment device for tunnel engineering construction according to claim 4, characterized in that: The scraper assembly (300) also includes a guide groove (307), which is symmetrically distributed on the upper and lower surfaces of the scraper (303).
6. The construction joint treatment device for tunnel engineering construction according to claim 5, characterized in that: The scraper assembly (300) also includes a fixing rod (308) which is fixedly connected between the scraper (303) and the inside of the receiving trough (302).
7. A construction joint treatment device for tunnel engineering construction according to claim 6, characterized in that: The bottom of the workbench (100) is provided with a shear lifting base (700), and a push handle (800) is fixed on one side of the workbench (100).