Fixed type automatic windshield expander in narrow space
By designing a narrow space fixed windshield automatic expander for EMUs, the mechanical structure of push rods and clamp rods is used to solve the problem of inconvenient installation position of the windshield fastening nails, and rapid and safe torque application and anti-loose mark coating are achieved, which improves work efficiency and production quality.
Patent Information
- Application Number
- CN202421566716.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the debugging stage of the EMU, the structure of the windshield causes inconvenient installation position of the fastening nail, making it difficult for the operator to quickly and safely apply torque and apply anti-loose marks in a narrow space, and the prior art has safety hazards and easy tools to be damaged.
A narrow space fixed windshield automatic expansion device is designed, including a push rod assembly, a load-bearing beam and an expansion clamp rod. The push rod is driven to expand and retract by driving the clamp rod to push the windshield to open, achieving automatic expansion for the application of torque and anti-loose marks.
The operator can quickly and safely apply the windshield torque and apply the anti-loose marks, avoid damage to the vehicle body and windshield by the tools, and improve work efficiency and production quality.
Smart Images
Figure CN222779527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor vehicle groups, in particular to an automatic windshield expander with a fixed type in a narrow space. Background Art
[0002] With the increase of EMUs, running time and mileage, EMU maintenance work is gradually carried out. During the EMU debugging stage, the whole train needs to be marshaled and coupled, and the connection of windshields between vehicles is an important link. The structure of the windshield does not have a convenient installation position for the fastening nails. Its fixed end is a double-layer wave-shaped folding shed, and the windshield fastening bolts are pressed between the windshield and the car body. For this process, the operator first needs to use a tooling ladder to put it outside the windshield at the connection between the two cars, and then climb on the tooling ladder while applying torque to the bolts. The bolt position is covered by the windshield, and the windshield needs to be opened before torque can be applied and anti-loosening marks can be painted. Due to the narrow space and the need for the operator to hold the tooling ladder to maintain balance, it is difficult to conveniently complete the work content of applying torque or painting looseness while opening the windshield in this process. In order to complete the production task, the operator generally chooses to pry open the windshield with a ratchet or wrench, and use the back or foot to support the inside of the windshield to maintain balance before applying torque and anti-loosening marks can be painted. This method in the prior art is not only inconvenient to operate, but also has great potential safety hazards. Prying open the windshield with tools can easily cause bumps and scratches on the vehicle body or damage the windshield. Utility Model Content
[0003] The utility model aims to solve the technical problems in the prior art and provides a fixed windshield automatic expander for a narrow space.
[0004] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0005] An automatic windshield expander for a narrow space fixed type includes: a push rod assembly, a load-bearing crossbeam, and an expansion clamping rod connected in sequence;
[0006] The push rod assembly includes: a push rod, a push rod inner tube, a screw rod and an outer sleeve; a driving motor is arranged in the outer sleeve; the push rod is connected to the push rod inner tube; the push rod inner tube is connected to the screw rod; when the driving motor rotates, the screw rod is driven to rotate through the speed change mechanism, and the screw rod then drives the push rod inner tube to move in the outer sleeve, thereby driving the push rod to extend and retract;
[0007] The load-bearing crossbeam is a trapezoidal structure, and a conducting hole is arranged in the middle of the trapezoidal structure, which penetrates the upper plane and the lower plane of the trapezoidal structure. When the driving motor drives the push rod to pass through the middle of the conducting hole, the clamping rod is pushed to complete the extrusion movement; the hypotenuse of the trapezoidal structure is provided with a chamfer; circular crossbeam connecting ears are designed on both sides of the chamfer, and a crossbeam ear hole is arranged in the center of the crossbeam connecting ear;
[0008] The expansion clamping rod comprises: two L-shaped clamping rods; the long sides of the two clamping rods are tightly attached to each other, and the ends of the short sides are circular clamping rod connecting ears; and a clamping rod ear hole is provided at the center of the clamping rod connecting ear;
[0009] The clamp rod connecting ear and the cross beam connecting ear are connected together by bolts through the cross beam ear hole and the clamp rod ear hole;
[0010] The push rod is used to move toward the clamping rod through the through hole in the center of the bearing beam, push open the clamping rod angle, and make the clamping rod open to both ends.
[0011] In the above technical solution, a buffer rubber ring is provided on the push rod to prevent the push rod from moving and hitting the pipe wall.
[0012] In the above technical solution, the clamping rod is encapsulated by a thin rubber cover.
[0013] In the above technical solution, the diameter of the portion of the push rod extending out of the outer sleeve gradually decreases.
[0014] In the above technical solution, the drive motor is a 24V direct drive motor.
[0015] The utility model has the following beneficial effects:
[0016] By using the narrow space fixed windshield automatic expander of the utility model, the operator can quickly and safely apply the windshield torque and apply the anti-loosening mark without damaging the vehicle body and the windshield, thereby improving work efficiency and production quality.
[0017] Compared to using a wrench to pry open the windshield, the narrow space fixed windshield automatic expander of the utility model can effectively protect the vehicle body and the windshield from damage and greatly improve the efficiency of the operation. The structure is particularly suitable for positions where the windshield covers a large area of the fastening bolts. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0019] Figure 1 The utility model is a schematic structural diagram of a push rod assembly of a narrow space fixed windshield automatic expander.
[0020] Figure 2 The utility model is a schematic structural diagram of the load-bearing beam of the narrow space fixed windshield automatic expander.
[0021] Figure 3 It is a structural schematic diagram of the right side clamping rod of the narrow space fixed windshield automatic expander of the utility model.
[0022] Figure 4 The utility model is a schematic structural diagram of the left clamping rod of the narrow space fixed windshield automatic expander.
[0023] Figure 5 It is a three-dimensional structural schematic diagram of the utility model of the narrow space fixed windshield automatic expander.
[0024] Figure 6 The utility model is a schematic diagram of the working structure of the narrow space fixed windshield automatic expander.
[0025] The reference numerals in the figures indicate:
[0026] 1-push rod; 2-jacket; 3-conducting hole; 4-upper plane; 5-lower plane; 6-chamfer; 7-crossbeam connecting ear; 8-crossbeam ear hole; 9-clamping rod; 10-clamping rod connecting ear; 11-clamping rod ear hole. DETAILED DESCRIPTION
[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.
[0029] The utility model is a narrow space fixed windshield automatic expander which is a special windshield expansion structure. It uses a reduction motor to push a push rod to control the expander clamping rod to open and fix the windshield, and a rubber sleeve is provided on the clamping rod to prevent the clamping rod from scratching the vehicle body. After the windshield is opened, the torque is applied and the anti-loosening mark is painted.
[0030] like Figure 1-6 As shown, the utility model of the narrow space fixed windshield automatic expander includes: a push rod assembly, a bearing beam and an expansion clamp rod connected in sequence;
[0031] The push rod assembly includes: a push rod 1, a push rod inner tube, a screw rod and an outer sleeve 2; a driving motor is arranged in the outer sleeve 2; the push rod 1 is connected to the push rod inner tube; the push rod inner tube is connected to the screw rod; when the driving motor rotates, the screw rod is driven to rotate through the speed change mechanism, and the screw rod then drives the push rod inner tube to move in the outer sleeve 2, thereby driving the push rod 1 to extend and retract;
[0032] The load-bearing crossbeam is a trapezoidal structure, and a conducting hole 3 is arranged in the middle of the trapezoidal structure, which penetrates the upper plane 4 and the lower plane 5 of the trapezoidal structure. When the driving motor drives the push rod 1 to pass through the middle of the conducting hole 3, the clamping rod 9 is pushed to complete the extrusion movement; the hypotenuse of the trapezoidal structure is provided with a chamfer 6; circular crossbeam connecting ears 7 are designed on both sides of the chamfer 6, and a crossbeam ear hole 8 is arranged in the center of the crossbeam connecting ear 7;
[0033] The expansion clamping rod comprises: two L-shaped clamping rods 9; the long sides of the two clamping rods 9 are tightly attached together, and the short side ends are circular clamping rod connecting ears 10; the center of the clamping rod connecting ears 10 is provided with a clamping rod ear hole 11;
[0034] The clamp rod connecting ear 10 and the cross beam connecting ear 7 are connected together by bolts through the cross beam ear hole 8 and the clamp rod ear hole 11;
[0035] The push rod 1 is used to move toward the clamping rod 9 through the through hole 3 in the center of the bearing beam, push open the angle of the clamping rod 9, and make the clamping rod 9 open to both ends.
[0036] A buffer rubber ring is provided on the push rod 1 to prevent the push rod 1 from moving and hitting the pipe wall. The clamping rod 9 is enclosed by a thin rubber sleeve. The diameter of the part of the push rod 1 extending out of the outer sleeve 2 gradually decreases. The driving motor is a 24V direct drive motor.
[0037] The utility model adopts a 24V direct drive motor as the driving motor of the fixed windshield automatic expander for narrow spaces. The driving motor is responsible for providing power to push the push rod 1 to perform linear motion. The performance of the driving motor directly affects the accuracy and speed of the push rod 1, so a direct drive motor with stable output is selected to ensure its efficient and stable operation. The driving motor is embedded in a rectangular protective shell, such as Figure 1 As shown, it is connected to the push rod 1 through gears, and the internal gear plays a secondary reduction role.
[0038] The fixed support frame is formed by connecting a rectangular outer shell 2 and a rectangular thin plate base, which plays the role of fixing the push rod 1 and connecting the force balance beam. The cylindrical cavity retained inside can make the push rod 1 move smoothly therein.
[0039] like Figure 1As shown, the push rod assembly includes: a push rod 1, a push rod inner tube, a screw and an outer sleeve 2; the driving motor is arranged in the outer sleeve 2; the push rod 1 is connected to the push rod inner tube; the push rod inner tube is connected to the screw; when the driving motor rotates, the screw is driven to rotate through the speed change mechanism, and the screw then pushes the push rod inner tube to move in the outer sleeve 2, thereby driving the push rod 1 to extend and retract.
[0040] In the push rod assembly, the push rod 1 must withstand the force during movement and ensure the smoothness and accuracy of the movement. A buffer rubber ring is provided on the push rod 1 to prevent the push rod 1 from moving and hitting the pipe wall, ensuring the smoothness of the movement. In order to allow the push rod 1 to smoothly push the clamping rod 9, the diameter of the part of the push rod 1 that extends out of the outer sleeve 2 gradually decreases.
[0041] The utility model adopts a plug-in battery as a power source, and is powered by 24V DC, which ensures convenience and practicality, and can be charged at any time. Considering the production environment factors, a power source with a sufficiently high protection level is selected to ensure stable operation and extend the service life. The utility model adopts a button switch, and the push rod 1 is extended by pressing it once, and the push rod 1 is retracted by operating it again.
[0042] like Figure 2 As shown, the load-bearing beam is a trapezoidal structure, and a conducting hole 3 is set in the middle of the trapezoidal structure to penetrate the upper plane 4 and the lower plane 5. The push rod 1 can pass through the middle of the conducting hole 3 under the drive of the driving motor, and push the clamping rod 9 to complete the extrusion movement. The supporting sheet and the load-bearing beam are tightly connected together to ensure that the push rod 1 moves in the conducting hole 3. Chamfers 6 are set on the hypotenuse of the trapezoidal structure to ensure smoothness. Circular beam connecting ears 7 are designed on both sides of the chamfer 6, so that the bolts can connect the beam connecting ears 7 with the clamping rod 9 through the beam ear holes 8. The beam connecting ears 7 are designed in the form of grooves, so that the planes of the beam connecting ears 7 and the clamping rod 9 are closely matched to form an integrated plane structure.
[0043] like Figure 3 and 4 As shown, the expansion clamping rod includes: two L-shaped clamping rods 9; the long sides of the two clamping rods 9 are tightly together, and the short side ends are circular clamping rod connecting ears 10; the center of the clamping rod connecting ear 10 is provided with a clamping rod ear hole 11; the clamping rod connecting ear 10 is bolted together with the beam connecting ears 7 at both ends of the load-bearing beam through the beam ear hole 8 and the clamping rod ear hole 11.
[0044] The push rod 1 moves toward the clamp rod 9 through the through hole 3 in the center of the bearing beam, pushing up the clamp rod 9 angle, so that the clamp rod 9 is stretched to both ends. In order to ensure that the clamp rod 9 does not scratch the car body when subjected to force, a thin rubber cover is selected to encapsulate the clamp rod 9.
[0045] like Figure 5 and 6As shown, the working process of the narrow space fixed windshield automatic expander of the utility model is as follows:
[0046] When the operator needs to open the windshield, he presses the power switch to turn on the power; the direct drive motor rotates, and pushes the push rod 1 through the reduction device and the screw rod; the push rod 1 moves linearly through the guide hole 3 in the center of the load-bearing beam, and pushes the clamping rod 9, so that the clamping rod 9 stops after opening to a certain angle, ensuring that it is fixed between the vehicle body and the windshield.
[0047] After completing the process operation, press the button again, the motor rotates in the opposite direction, the push rod is retracted, and the clamping rod is clamped in the opposite direction due to the lack of supporting force, and can finally be taken out from the windshield.
[0048] By using the narrow space fixed windshield automatic expander of the utility model, the operator can quickly and safely apply the windshield torque and apply the anti-loosening mark without damaging the vehicle body and the windshield, thereby improving work efficiency and production quality.
[0049] Compared to using a wrench to pry open the windshield, the narrow space fixed windshield automatic expander of the utility model can effectively protect the vehicle body and the windshield from damage and greatly improve the efficiency of the operation. The structure is particularly suitable for positions where the windshield covers a large area of the fastening bolts.
[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A fixed windshield automatic expander for narrow spaces, characterized in that: It includes: a push rod assembly, a load-bearing beam and an expansion clamp rod connected in sequence; The push rod assembly comprises: a push rod (1), a push rod inner tube, a screw rod and an outer sleeve (2); a driving motor is arranged in the outer sleeve (2); the push rod (1) is connected to the push rod inner tube; the push rod inner tube is connected to the screw rod; when the driving motor rotates, the screw rod is driven to rotate through the speed change mechanism, and the screw rod then drives the push rod inner tube to move in the outer sleeve (2), thereby driving the push rod (1) to extend and retract; The load-bearing crossbeam is a trapezoidal structure, and a conducting hole (3) is arranged in the middle of the trapezoidal structure, which penetrates the upper plane (4) and the lower plane (5) of the trapezoidal structure. When the driving motor drives the lower push rod (1) to pass through the middle of the conducting hole (3), the clamping rod (9) is pushed to complete the extrusion movement; the hypotenuse of the trapezoidal structure is provided with a chamfer (6); circular crossbeam connecting ears (7) are respectively designed on both sides of the chamfer (6), and a crossbeam ear hole (8) is arranged in the center of the crossbeam connecting ear (7); The expansion clamping rod comprises: two L-shaped clamping rods (9); the long sides of the two clamping rods (9) are tightly attached together, and the short side ends are circular clamping rod connecting ears (10); and the center of the clamping rod connecting ears (10) is provided with a clamping rod ear hole (11); The clamping rod connecting ear (10) and the crossbeam connecting ear (7) are connected together by bolts through the crossbeam ear hole (8) and the clamping rod ear hole (11); The push rod (1) is used to move toward the clamping rod (9) through the through hole (3) at the center of the bearing crossbeam, push open the clamping rod (9) at an angle, and make the clamping rod (9) open to both ends.
2. The narrow space fixed windshield automatic expander according to claim 1, characterized in that: A buffer rubber ring is provided on the push rod (1) to prevent the push rod (1) from moving and colliding with the pipe wall.
3. The narrow space fixed windshield automatic expander according to claim 1, characterized in that: The clamping rod (9) is enclosed by a thin rubber cover.
4. The narrow space fixed windshield automatic expander according to claim 1, characterized in that: The diameter of the portion of the push rod (1) extending out of the outer sleeve (2) gradually decreases.
5. The narrow space fixed windshield automatic expander according to any one of claims 1 to 4, characterized in that: The drive motor is a 24V direct drive motor.