Bonding suction cup tool for replacing side window glass of motor train unit

By designing a suction cup fixture for replacing the side window glass of a high-speed train, and utilizing the multi-angle adjustment of the limit frame and positioning group, the problems of displacement and installation difficulties during the replacement of the side window glass were solved, achieving efficient and stable glass replacement results.

CN224088836UActive Publication Date: 2026-04-07CHINA RAILWAY GUANGZHOU BUREAU GRP CO LTD GUANGZHOU EMU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

During the replacement of the side window glass of the CRH3C EMU, the side window glass is prone to displacement under the influence of uncured Sikaflex-265R adhesive, which makes installation difficult, requires multiple people to operate and affects efficiency. In addition, traditional installation methods have problems of uncertainty and poor adaptability.

Method used

A suction cup fixture for replacing side window glass in high-speed trains was designed, including a limiting frame and a positioning group. Through the combination of longitudinal, lateral and vertical adjustment groups, and using structures such as electric suction cups and guide rods, the fixture can achieve multi-angle positioning and fixation of the side window glass, counteract the tilting force of the glass and reduce small-range displacement before the adhesive dries.

Benefits of technology

It improves the installation efficiency and adaptability of side window glass replacement, reduces small-range displacement of the glass before the adhesive dries, ensures a tight fit between the glass and the interior wall of the vehicle, prevents adhesive cracks, and improves the stability and efficiency of installation.

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Abstract

The utility model provides a motor train unit side window glass replacement bonding suction cup tool which comprises limiting frames and positioning sets, the positioning sets are fixed to the sides, close to the exterior of a motor train unit, of the limiting frames, and four positioning sets are arranged on each limiting frame. The positioning set comprises a longitudinal suction set, a transverse adjusting set and a vertical adjusting set, one end of the longitudinal suction set is connected with an electric suction cup, and the electric suction cup is sucked to the inner side surface, close to the carriage, of the side window glass. The longitudinal suction set further comprises a guide rod which is fixed to the electric suction cup and perpendicular to the surface of the side window glass, the guide rod is in threaded connection with a longitudinal limiting rotary knob, and one end of the longitudinal limiting rotary knob is fixedly connected with the limiting frame. The transverse, vertical and longitudinal positions of the positioning sets are adjusted, so that the limiting frames can be attached to the interior of the compartment body, the gravity acting force generated when the glass topples towards the exterior of the compartment is conducted to the inner wall of the compartment, and the part of the acting force is counteracted.
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Description

Technical Field

[0001] This utility model relates to the field of construction instrument and equipment technology, specifically a suction cup tool for replacing and bonding side window glass of a high-speed train. Background Technology

[0002] When replacing the side windows of the CRH3C EMU, the side windows are bonded to the car body entirely with Sikaflex-265R adhesive (black glue 265). Before the Sikaflex-265R adhesive (black glue 265) has cured, the side windows may shift due to factors such as their own weight, causing them to tilt outwards. The traditional installation method involves applying adhesive to the windows on both sides of the car, connecting suction cups on the side where the two windows are close to each other, and connecting a fixing strap between the two suction cups. The interaction force between the two windows is used to counteract the outward tilting force of the side windows. However, this installation process requires a large number of workers, and after installing the fixing strap, the car is not passable during the adhesive drying process, affecting installation efficiency. Furthermore, the side windows are affected by the uncertainty caused by the weight of the suction cups and the fixing strap, making it less adaptable.

[0003] To achieve the above objectives, this utility model provides a suction cup tool for replacing and bonding side window glass of high-speed trains, which can solve the problems mentioned in the background art. Utility Model Content

[0004] This utility model adopts the following technical solution:

[0005] A tooling for replacing adhesive suction cups on the side window glass of a high-speed train includes a limiting frame and a positioning group. The positioning group is fixed to the limiting frame on the side near the outside of the high-speed train. Each limiting frame is provided with four positioning groups.

[0006] The positioning group includes a longitudinal suction group, a lateral adjustment group, and a vertical adjustment group. One end of the longitudinal suction group is connected to an electric suction cup, which is attracted to the inner surface of the side window glass near the vehicle compartment.

[0007] The longitudinal suction assembly also includes a guide rod fixed on the electric suction cup and perpendicular to the surface of the side window glass. A longitudinal limiting knob is threaded onto the guide rod, and one end of the longitudinal limiting knob is fixedly connected to the limiting frame.

[0008] Preferably, the limiting frame includes a connecting tube, a telescopic inner tube, and a loop-shaped limiting tube arranged in a rectangular shape. The two ends of the connecting tube are respectively connected to two telescopic inner tubes, and the two ends of the loop-shaped limiting tube are respectively connected to one end of two telescopic inner tubes. The connecting tubes connected to the other ends of the two telescopic inner tubes connected to the same loop-shaped limiting tube are parallel to each other and are not the same connecting tube.

[0009] Preferably, the inner wall of the telescopic inner tube is provided with a matching positioning guide rail, and the outer periphery of the connecting tube is provided with a guide positioning groove, the guide positioning groove and the matching positioning guide rail are mutually coordinated and slide.

[0010] Preferably, both the telescopic inner tube and the spiral limiting tube are provided with a protective sleeve.

[0011] Preferably, the longitudinal suction assembly further includes a positioning cylinder disposed on one side of the electric suction cup, the guide rod is fixed to one side of the positioning cylinder, the longitudinal limiting knob is threadedly connected to the guide rod, the interior of the longitudinal limiting knob has a bearing-type upper and lower layered structure, and the lower layer of the longitudinal limiting knob is fixedly connected to the top of the vertical adjustment assembly.

[0012] Preferably, the lateral adjustment assembly includes a lateral fixing base, the interior of which is a tubular passage and equipped with a positioning guide block. The lateral fixing base is slidably connected to the limiting frame, and the positioning guide block cooperates with the limiting frame to limit movement.

[0013] Preferably, the vertical adjustment group includes a vertical fixing base, which is fixed above the horizontal adjustment group;

[0014] The vertical fixing base has a pipe-like interior and is equipped with a vertical mating block. A vertical adjusting rod is inserted through the pipe of two adjacent vertical fixing bases. A vertical connecting block is provided above the vertical adjusting rod. A vertical guide groove is provided on the outer wall of the vertical fixing base. The vertical mating block, the vertical connecting block, and the vertical guide groove cooperate and slide with each other.

[0015] Preferably, the vertical adjustment rod has multiple connecting inner tubes with through-walls inside, and the connecting inner tubes are slidably connected to the outside of the guide rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model uses a tool to attract the side window glass and adjusts the horizontal, vertical and longitudinal positions of the positioning group so that the limiting frame can fit against the inside of the carriage body, thereby transmitting the gravity force of the glass tilting out of the carriage to the inner wall of the carriage, thus offsetting this part of the force and playing a better fixing role.

[0018] Meanwhile, this tooling utilizes the friction between the limiting bracket and the inner wall of the carriage to reduce the small-range displacement of the glass before the adhesive dries, thus preventing adhesive cracks from occurring.

[0019] By using individual workpieces at multiple angles, the tooling can be adjusted in multiple directions to accommodate the replacement needs of car windows of different sizes and positions. It also facilitates the positioning and installation of suction cups, improves the suction cup's attraction and support for the side windows, and enhances the static friction effect between the limiting bracket and the inner wall of the car body, thus achieving a better side window installation effect. Attached Figure Description

[0020] Figure 1 This is a side view of the overall structure of this utility model during installation;

[0021] Figure 2 This is a three-dimensional structural view of the present invention;

[0022] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of area A in the middle;

[0023] Figure 4 This is a cross-sectional view of the longitudinal limiting knob structure of this utility model.

[0024] In the diagram: 1. Limiting frame; 2. Positioning assembly;

[0025] 101. Connecting pipe; 102. Telescopic inner pipe; 103. Guide positioning groove; 104. Matching positioning guide rail; 105. Recurved limiting pipe; 106. Filler protective sleeve;

[0026] 201. Longitudinal suction group; 202. Lateral adjustment group; 203. Vertical adjustment group;

[0027] 204. Electric suction cup; 205. Positioning cylinder; 206. Guide rod; 207. Longitudinal limit knob;

[0028] 208. Lateral fixed base; 209. Positioning guide block;

[0029] 210. Vertical fixed base; 211. Vertical mating block; 212. Connecting inner tube; 213. Vertical guide groove; 214. Vertical connecting block; 215. Vertical adjusting rod. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Please refer to the attached document carefully. Figure 1 , Figure 2 , Figure 4 It includes a limiting frame 1 and a positioning group 2. The positioning group 2 is fixed to the limiting frame 1 on the side near the outside of the EMU. Each limiting frame 1 is provided with four positioning groups 2.

[0035] The positioning group 2 includes a longitudinal suction group 201, a lateral adjustment group 202, and a vertical adjustment group 203. One end of the longitudinal suction group 201 is connected to an electric suction cup 204, which is attracted to the inner surface of the side window glass near the carriage.

[0036] The longitudinal suction assembly 201 also includes a guide rod 206 fixed on the electric suction cup 204 and perpendicular to the surface of the side window glass. A longitudinal limiting knob 207 is threaded onto the guide rod 206, and one end of the longitudinal limiting knob 207 is fixedly connected to the limiting frame 1.

[0037] Please refer to this carefully. Figures 1-3 The limiting frame 1 includes a rectangularly distributed connecting tube 101, a telescopic inner tube 102, and a loop-shaped limiting tube 105. The two ends of the connecting tube 101 are respectively connected to two telescopic inner tubes 102. The two ends of the loop-shaped limiting tube 105 are respectively connected to one end of two telescopic inner tubes 102. The connecting tubes 101 connected to the other ends of the two telescopic inner tubes 102 connected to the same loop-shaped limiting tube 105 are parallel to each other and are not the same connecting tube 101.

[0038] The inner wall of the telescopic inner tube 102 is provided with a matching positioning guide rail 104, and the outer periphery of the connecting tube 101 is provided with a guide positioning groove 103, which cooperates with the matching positioning guide rail 104 to slide.

[0039] Both the telescopic inner tube 102 and the spiral limiting tube 105 are provided with a protective sleeve 106.

[0040] Example 1: A single connecting tube 101 is slidably connected inside the two telescopic inner tubes 102. Its adjustment has two functions: first, it adjusts the distance between the positioning cylinders 205 on both sides to adapt to the outward expansion of the window in different installation positions; second, after adjustment, the positioning group 2 limits one side of its edge distance to prevent it from sliding freely; in addition, the positioning between the guide positioning groove 103 and the matching positioning guide rail 104 can make the entire limiting frame 1 parallel to the glass surface while facilitating the installation of the loop limiting tube 105, which is convenient for balancing the suction force required by the suction cup; the funnel end of the suction cup can be an accordion-style universal structure, which is convenient for adapting to the inner surface of the non-planar side window and improving the fitting effect; the filling protective sleeve 106 is made of sponge material that is easy to fit and increases static friction, which can play a buffering role while increasing static friction, thereby balancing more of the weight force of the limiting frame 1 itself without increasing the suction force of the suction cup; the overall structure of the limiting frame 1 can be made of lightweight aluminum alloy.

[0041] Please refer to this carefully. Figures 2-4 The longitudinal suction assembly 201 also includes a positioning cylinder 205 disposed on one side of the electric suction cup 204. The guide rod 206 is fixed to one side of the positioning cylinder 205. The longitudinal limiting knob 207 is threadedly connected to the guide rod 206. The interior of the longitudinal limiting knob 207 has a bearing-type upper and lower layered structure. The lower layer of the longitudinal limiting knob 207 is fixedly connected to the top of the vertical adjustment assembly 203.

[0042] The lateral adjustment group 202 includes a lateral fixing base 208. The interior of the lateral fixing base 208 is a tubular passage and is provided with a positioning guide block 209. The lateral fixing base 208 is slidably connected to the connecting tube 101 on the limiting frame 1. The positioning guide block 209 cooperates with the outer wall of the connecting tube 101 on the limiting frame 1 to limit the position.

[0043] The vertical adjustment group 203 includes a vertical fixing base 210, which is fixed above the horizontal adjustment group 202;

[0044] The vertical fixing base 210 has a pipe-like interior and is provided with a vertical mating block 211. A vertical adjusting rod 215 is inserted through the pipe of two adjacent vertical fixing bases 210. A vertical connecting block 214 is provided above the vertical adjusting rod 215. A vertical guide groove 213 is provided on the outer wall of the vertical fixing base 210. The vertical mating block 211, the vertical connecting block 214, and the vertical guide groove 213 cooperate and slide with each other.

[0045] The vertical adjustment rod 215 has multiple connecting inner tubes 212 that penetrate through the side walls, and the connecting inner tubes 212 are slidably connected to the outside of the guide rod 206.

[0046] Example 2: The adjustment method of the longitudinal suction assembly 201 is mainly through the adjustment of the longitudinal limit knob 207. The longitudinal limit knob 207 is rotated as follows: Figure 4 The bottom layer drives the limiting frame 1 to move towards the vehicle compartment, while the guide rod 206 moves relative to the connecting inner tube 212.

[0047] The adjustment method of the lateral adjustment group 202 is the limiting guide cooperation between the guide positioning groove 103 and the positioning guide block 209. By changing the cooperation position of the two, the suction position of the bottom suction cup can be changed, and a pre-adaptive adjustment can be made. After the adjustment is completed, the cooperation position of the guide positioning groove 103 and the cooperation positioning guide rail 104 can be adjusted at the same time to limit the four corners of the lateral fixed base 208.

[0048] The vertical adjustment group 203 is adjusted by the cooperation between the vertical mating block 211, the vertical guide groove 213, and the vertical connecting block 214, as well as the positioning of the inner connecting tube 212 and the guide rod 206. This can also be achieved through pre-adjustment. This step can be adjusted before closing the window. After this adjustment, the corresponding length of the loop-shaped limiting tube 105 needs to be replaced.

[0049] The operation of this device is as follows: First, place the fixture inside the carriage at the window position, adjust the position of the four suction cups to align with the window, hold the fixture inside the carriage window with one hand, and use the other hand to attach the suction cups to the window glass to be fixed. Adjust the suction cups to make them adhere to the glass surface. Change the fixed position of the guide rod 206 by adjusting the longitudinal limit knob 207 to tighten and fix the suction cups to the fixture. Then fix the other three suction cups in sequence (operate in diagonal order). After the suction is completed, change the knob state of the longitudinal limit knob 207 to make the filling protective sleeve 106 on the limit frame 1 fit tightly against the inner wall of the carriage until the adhesive is dry. Then release the suction state of the suction cups in sequence.

[0050] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A tooling for replacing adhesive suction cups on the side windows of high-speed trains, characterized in that: It includes a limiting frame (1) and a positioning group (2). The positioning group (2) is fixed to the limiting frame (1) on the side near the outside of the train set. Each limiting frame (1) is provided with four positioning groups (2). The positioning group (2) includes a longitudinal suction group (201), a lateral adjustment group (202), and a vertical adjustment group (203). One end of the longitudinal suction group (201) is connected to an electric suction cup (204), which is attracted to the inner surface of the side window glass near the carriage. The longitudinal suction assembly (201) also includes a guide rod (206) fixed on the electric suction cup (204) and perpendicular to the surface of the side window glass. A longitudinal limiting knob (207) is threaded onto the guide rod (206), and one end of the longitudinal limiting knob (207) is fixedly connected to the limiting frame (1).

2. The tooling for replacing and bonding suction cups on the side windows of a high-speed train according to claim 1, characterized in that: The limiting frame (1) includes a rectangularly distributed connecting tube (101), a telescopic inner tube (102), and a loop-shaped limiting tube (105). The two ends of the connecting tube (101) are respectively connected to two telescopic inner tubes (102), and the two ends of the loop-shaped limiting tube (105) are respectively connected to one end of two telescopic inner tubes (102). The connecting tubes (101) connected to the other ends of the two telescopic inner tubes (102) connected to the same loop-shaped limiting tube (105) are parallel to each other and are not the same connecting tube (101).

3. The tooling for replacing and bonding suction cups on the side windows of a high-speed train according to claim 2, characterized in that: The inner wall of the telescopic inner tube (102) is provided with a matching positioning guide rail (104), and the outer periphery of the connecting tube (101) is provided with a guide positioning groove (103). The guide positioning groove (103) and the matching positioning guide rail (104) cooperate and slide with each other.

4. The tooling for replacing and bonding suction cups on the side windows of a high-speed train according to claim 2, characterized in that: The telescopic inner tube (102) and the spiral limiting tube (105) are both provided with a protective sleeve (106).

5. The tooling for replacing adhesive suction cups on the side windows of a high-speed train according to claim 1, characterized in that: The longitudinal suction assembly (201) also includes a positioning cylinder (205) disposed on one side of the electric suction cup (204). The guide rod (206) is fixed to one side of the positioning cylinder (205). The longitudinal limiting knob (207) is threadedly connected to the guide rod (206). The interior of the longitudinal limiting knob (207) has a bearing-type upper and lower layered structure. The lower layer of the longitudinal limiting knob (207) is fixedly connected to the top of the vertical adjustment assembly (203).

6. The tooling for replacing adhesive suction cups on the side windows of a high-speed train according to claim 5, characterized in that: The lateral adjustment group (202) includes a lateral fixing base (208), the interior of which is a tubular passage and is provided with a positioning guide block (209). The lateral fixing base (208) is slidably connected to the limiting frame (1), and the positioning guide block (209) cooperates with the limiting frame (1) to limit the position.

7. The tooling for replacing and bonding suction cups on the side windows of a high-speed train according to claim 5, characterized in that: The vertical adjustment group (203) includes a vertical fixing base (210), which is fixed above the horizontal adjustment group (202); The vertical fixing base (210) has a pipe-like interior and is provided with a vertical mating block (211). A vertical adjusting rod (215) is provided through the pipe of two adjacent vertical fixing bases (210). A vertical connecting block (214) is provided above the vertical adjusting rod (215). A vertical guide groove (213) is provided on the outer wall of the vertical fixing base (210). The vertical mating block (211), the vertical connecting block (214), and the vertical guide groove (213) cooperate and slide with each other.

8. The tooling for replacing and bonding suction cups for side windows of high-speed trains according to claim 7, characterized in that: The vertical adjustment rod (215) has multiple connecting inner tubes (212) with side walls penetrating inside, and the connecting inner tubes (212) are slidably connected to the outside of the guide rod (206).