CRH3 type motor train unit windshield nail mounting and dismounting tool

Abstract

The utility model discloses a CRH3 type motor train unit windshield nail mounting and dismounting tool. The CRH3 type motor train unit windshield nail mounting and dismounting tool comprises an inner hexagonal ratchet wheel assembly matched with a fastening nail. The bending handle is connected with the inner hexagonal ratchet wheel assembly; a fastening nail to be fastened can be embedded into an inner hexagonal ratchet wheel of the inner hexagonal ratchet wheel assembly, and the bending handle is divided into a pressing part and an operation part. The pressing part drives the inner hexagonal ratchet wheel assembly to press the fastening nail, and the operation part is used for rotating a tool and fastening the fastening nail. The fastening nail can be directly fixed at the front end of the tool in the form of the ratchet head and the fixing structure, and the fastening nail does not need to be fixed by hands; downward force can be applied to the pressing part of the bent handle by hands, so that a nail can enter a screw hole more smoothly, and the length design of the operating part at the rear end can effectively balance the relation between the torque and the arm swinging amplitude of a person during fastening.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield nail disassembly and assembly of motor vehicle groups, in particular to a tool for installing and disassembling windshield nails of a CRH3 motor vehicle group. Background Art

[0002] With the increase of EMUs and running time and mileage, the maintenance work of EMUs is gradually carried out. During the maintenance of EMUs, the whole train needs to be disassembled and coupled. The connection of windshields between vehicles is an important link. The structure of the windshield results in no convenient installation position for the fastening nails. The fixed end is a double-layer wave-shaped bellows. Each time a nail is installed, the double-layer wave-shaped bellows must be pressed to deform it, leaving space for the hand to fix the fastening nail. At this time, the hand must be squeezed by force to squeeze the double-layer wave-shaped bellows to operate the fastening nail to fasten it vertically into the screw hole of the car body. There are problems such as cumbersome operation, easy crooked fastening nails, and easy squeezing of hands.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a CRH3 EMU windshield nail installation and removal tool. Utility Model Content

[0004] The utility model aims to provide a CRH3 EMU windshield nail installation and removal tool, which can quickly and accurately install the EMU windshield nails, speed up the installation, reduce the wear of the threads during installation, and avoid the problem of fingers being pinched when fixing the fastening nails during installation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a CRH3 type EMU windshield nail installation and removal tool, the tool comprising:

[0007] a hexagon socket ratchet assembly that cooperates with the fastening nail; and

[0008] a bending handle connected to the hexagonal ratchet assembly;

[0009] The fastening nail to be fastened can be embedded in the hexagonal ratchet of the hexagonal ratchet assembly, and the bending handle is divided into a pressing part and an operating part;

[0010] The pressing part drives the hexagonal ratchet assembly to press the fastening nail, and the operating part is used to rotate the tool and fasten the fastening nail.

[0011] Furthermore, the hexagonal ratchet assembly comprises:

[0012] The hexagonal ratchet has a circumscribed circle diameter of 23 mm, a distance between opposite straight edges of the inner wall of the hexagonal ratchet is 16 mm, and the hexagonal ratchet is hollow inside to form a fastening nail embedding cavity;

[0013] a stainless steel cap fixed to one end of the hexagonal ratchet; and

[0014] A magnet is fixed to one end of the hexagonal ratchet through the stainless steel cap.

[0015] Furthermore, the height of the stainless steel cap is 5 mm;

[0016] The stainless steel cap comprises:

[0017] A plugging portion and a protruding portion;

[0018] The cross-sectional dimensions of the blocking portion match those of the hexagonal ratchet, and the protrusion is embedded in the fastening nail embedding cavity;

[0019] The protrusion has a groove into which the magnet is embedded.

[0020] Furthermore, the bending handle comprises:

[0021] A pressing portion connected to the hexagonal ratchet; and

[0022] An operating portion connected to the pressing portion via a transition portion;

[0023] The pressing portion and the operating portion both extend in a horizontal direction, and the transition portion extends in a vertical direction.

[0024] Furthermore, a reinforcement portion is provided at the connection between the pressing portion and the transition portion, and at the connection between the transition portion and the operating portion, and the thickness of the reinforcement portion is greater than the thickness of the pressing portion, the transition portion, and the operating portion.

[0025] Furthermore, the clamping portion is connected to the middle position of the hexagonal ratchet, and the length of the clamping portion is 65 mm;

[0026] The length of the transition portion is 55 mm;

[0027] The length of the operating portion is 150 mm.

[0028] Furthermore, the operating part is a connector connected to the transition part and a hand-held rod for hand-holding;

[0029] The diameter of the handle bar is 22 mm, and the length of the handle bar is 83 mm.

[0030] In the above technical solution, the utility model provides a CRH3 EMU windshield nail installation and removal tool, which has the following beneficial effects:

[0031] The front end of the tool of the utility model adopts the form of a ratchet head plus a fixing structure, which can directly fix the fastening nail without the need for manual fixation; the pressing part of the bent handle can apply downward force by hand to make the nail enter the screw hole more smoothly, and the length design of the operating part at the rear end can effectively balance the relationship between the torque size and the amplitude of the operator's arm swing during tightening.

[0032] The tool of the utility model can speed up the installation and disassembly of the windshield, reduce the problem of thread wear caused by misalignment of the nail seat during installation, and avoid the problem of fingers being pinched due to fixing the fastening nails during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. It is obvious that the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 A schematic diagram of the structure of a CRH3 EMU windshield nail installation and removal tool disclosed in an embodiment of the utility model;

[0035] Figure 2 It is a front view of a CRH3 EMU windshield nail installation and removal tool disclosed in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1. Hexagonal ratchet assembly; 2. Bending handle;

[0038] 101. Hexagon socket ratchet; 102. sealing portion; 103. protruding portion; 104. magnet;

[0039] 201, pressing part; 202, transition part; 203, connecting body; 204, holding rod; 205, reinforcement part. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] See also Figure 1 to Figure 2 As shown;

[0042] A CRH3 EMU windshield nail installation and removal tool in this embodiment includes:

[0043] A hexagon socket ratchet assembly 1 that cooperates with the fastening nail; and

[0044] A bending handle 2 connected to the hexagonal ratchet assembly 1;

[0045] The fastening nail to be fastened can be embedded in the hexagonal ratchet 101 of the hexagonal ratchet assembly 1, and the bending handle 2 is divided into a pressing part 201 and an operating part;

[0046] The pressing part 201 drives the hexagonal ratchet assembly 1 to press the fastening nail, and the operating part is used to rotate the tool and tighten the fastening nail.

[0047] Specifically, the present embodiment discloses a tool suitable for installing and removing fastening nails of a windshield of an EMU, wherein a hexagonal ratchet assembly 1 is designed at the front end to cooperate with the fastening nail, and the inside of the hexagonal ratchet assembly 1 can better fix the fastening nail by magnetic attraction; the bending handle 2 is designed with a clamping part 201 and an operating part, wherein the clamping part 201 can be pressed down when held to clamp the hexagonal ratchet assembly 1 and the fastening nail, so that the fastening nail is completely embedded in the cavity of the hexagonal ratchet assembly 1, and the operating part at the rear end can be held and rotated to tighten or loosen the fastening nail.

[0048] Preferably, the hexagonal ratchet assembly 1 of this embodiment includes:

[0049] The hexagonal ratchet 101 has a circumscribed circle diameter of 23 mm, a distance between opposite straight edges of the inner wall of the hexagonal ratchet 101 is 16 mm, and the hexagonal ratchet 101 is hollow inside to form a fastening nail embedding cavity;

[0050] A stainless steel cap fixed to one end of the hexagonal ratchet 101; and

[0051] A magnet 104 is fixed to one end of the hexagonal ratchet 101 through a stainless steel cap.

[0052] This embodiment further defines the composition of the hexagonal ratchet assembly 1, which includes a hexagonal ratchet 101, a stainless steel cap and a magnet 104. The hexagonal ratchet 101 matches the specifications of the fastening nail, and then one end of the hexagonal ratchet 101 is blocked by the stainless steel cap, and a magnet 104 is installed inside, and the magnet 104 can absorb the fastening nail, allowing it to enter the hexagonal ratchet 101 more easily.

[0053] Furthermore, the height of the stainless steel cap is 5 mm;

[0054] Stainless steel cap includes:

[0055] A blocking portion 102 and a protruding portion 103;

[0056] The cross-sectional dimensions of the blocking portion 102 match those of the hexagonal ratchet 101, and the protrusion 103 is embedded in the fastening nail embedding cavity;

[0057] The protrusion 103 has a groove in which the magnet 104 is embedded.

[0058] In order to install the magnet 104, the stainless steel cap is designed with a protrusion 103, the groove of the protrusion 103 matches the size of the magnet 104, and the magnet 104 is fixed in the groove to absorb the fastening nail.

[0059] Preferably, the bending handle 2 of this embodiment includes:

[0060] A pressing portion 201 connected to the hexagonal ratchet 101; and

[0061] An operating portion connected to the pressing portion 201 via a transition portion 202;

[0062] The pressing portion 201 and the operating portion both extend in the horizontal direction, and the transition portion 202 extends in the vertical direction.

[0063] In order to provide structural stability, a reinforcing portion 205 is provided at the connection between the clamping portion 201 and the transition portion 202, and at the connection between the transition portion 202 and the operating portion in this embodiment. The thickness of the reinforcing portion 205 is greater than the thickness of the clamping portion 201, the transition portion 202, and the operating portion.

[0064] The pressing portion 201 is connected to the middle of the hexagonal ratchet 101, and the length of the pressing portion 201 is 65 mm.

[0065] The length of the transition portion 202 is 55 mm;

[0066] The length of the operating part is 150 mm.

[0067] The operating part of this embodiment is a connecting body 203 connected to the transition part 202, and a hand-held rod 204 for hand-holding; the diameter of the hand-held rod 204 is 22 mm, and the length of the hand-held rod 204 is 83 mm.

[0068] The present embodiment further defines the composition of the bending handle 2, which is an overall "Z"-shaped structure made of stainless steel, and is mainly divided into a clamping portion 201, a transition portion 202 and an operating portion, wherein the operating portion of the present embodiment is a connecting body 203 and a hand-held rod 204, wherein the hand-held rod 204 can be used to rotate the tool when held in hand to complete the tightening of the fastening nail.

[0069] In the above technical solution, the utility model provides a CRH3 EMU windshield nail installation and removal tool, which has the following beneficial effects:

[0070] The front end of the tool of the utility model adopts the form of a ratchet head plus a fixing structure, which can directly fix the fastening nail without the need for manual fixation; the clamping part 201 of the bent handle 2 can apply downward force by hand to make the nail enter the screw hole more smoothly, and the length design of the operating part at the rear end can effectively balance the torque size and the relationship between the swing arm amplitude of the person during tightening.

[0071] The tool of the utility model can speed up the installation and disassembly of the windshield, reduce the problem of thread wear caused by misalignment of the nail seat during installation, and avoid the problem of fingers being pinched due to fixing the fastening nails during installation.

[0072] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CRH3 EMU windshield nail installation and removal tool, characterized in that: The tools include: a hexagon socket ratchet assembly (1) cooperating with the fastening nail; and A bending handle (2) connected to the hexagonal ratchet assembly (1); The fastening nail to be fastened can be embedded in the hexagonal ratchet (101) of the hexagonal ratchet assembly (1), and the bending handle (2) is divided into a pressing part (201) and an operating part; The pressing portion (201) drives the hexagonal ratchet assembly (1) to press the fastening nail, and the operating portion is used to rotate the tool and tighten the fastening nail.

2. A CRH3 EMU windshield nail installation and removal tool according to claim 1, characterized in that: The hexagonal ratchet assembly (1) comprises: The hexagonal ratchet (101), the diameter of the circumscribed circle of the hexagonal ratchet (101) is 23 mm, the distance between the opposite straight edges of the inner wall of the hexagonal ratchet (101) is 16 mm, and the interior of the hexagonal ratchet (101) is hollow and formed into a fastening nail embedding cavity; a stainless steel cap fixed to one end of the hexagonal ratchet (101); and A magnet (104) is fixed to one end of the hexagonal ratchet (101) through the stainless steel cap.

3. A CRH3 EMU windshield nail installation and removal tool according to claim 2, characterized in that: The height of the stainless steel cap is 5 mm; The stainless steel cap comprises: A blocking portion (102) and a protruding portion (103); The cross-sectional dimensions of the blocking portion (102) match the cross-sectional dimensions of the hexagonal ratchet (101), and the protruding portion (103) is embedded in the fastening nail embedding cavity; The protrusion (103) has a groove in which the magnet (104) is embedded.

4. A CRH3 EMU windshield nail installation and removal tool according to claim 2, characterized in that: The bending handle (2) comprises: A pressing portion (201) connected to the hexagonal ratchet (101); and An operating portion connected to the pressing portion (201) via a transition portion (202); The pressing portion (201) and the operating portion both extend in a horizontal direction, and the transition portion (202) extends in a vertical direction.

5. A CRH3 EMU windshield nail installation and removal tool according to claim 4, characterized in that: A reinforcing portion (205) is provided at the connection between the pressing portion (201) and the transition portion (202), and at the connection between the transition portion (202) and the operating portion. The thickness of the reinforcing portion (205) is greater than the thickness of the pressing portion (201), the transition portion (202), and the operating portion.

6. A CRH3 EMU windshield nail installation and removal tool according to claim 4, characterized in that: The pressing portion (201) is connected to the middle position of the hexagonal ratchet (101), and the length of the pressing portion (201) is 65 mm; The length of the transition portion (202) is 55 mm; The length of the operating portion is 150 mm.

7. A CRH3 EMU windshield nail installation and removal tool according to claim 4, characterized in that: The operating part is a connecting body (203) connected to the transition part (202), and a hand-held rod (204) for hand-holding; The diameter of the hand-held rod (204) is 22 mm, and the length of the hand-held rod (204) is 83 mm.

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