A middle frame assembly and a through passage

Abstract

The application provides a through channel, which comprises a middle frame assembly, a connecting frame fixed on the bottom frame, and a wearing plate arranged at the bottom of the bottom frame, wherein the wearing plate is fixed at the bottom of the bottom frame, the wearing plate has a long strip plate structure, a wrapping protrusion is arranged on the side edge of the wearing plate, the wrapping protrusion and the wearing plate are vertically arranged, the wrapping protrusion and the wearing plate cover the corner of the bottom frame, and the wrapping protrusion protects the corner of the bottom frame. The wearing plate with the wrapping protrusion arranged at the bottom of the bottom frame can transfer the radial shearing force of the screw fixed on the wearing plate, avoid the screw from falling off after being sheared, and protect the bottom frame from being deformed due to stress caused by friction.

Description

Technical Field

[0002] This invention relates to the technical fields of intermediate frame components and through channels, and particularly to an intermediate frame component and through channel. Background Technology

[0004] When the connecting passage is installed onto the car body, the bottom of the intermediate frame is placed on the car body's coupler. Wear blocks are installed between the car body and the connecting passage, as disclosed in patent number CN202011466219.2, which discloses a rail vehicle connecting passage with wear plates and support members. The support member is equivalent to the car body's coupler, used to support the intermediate frame of the connecting passage. The wear plate is fixed to the intermediate frame and also overlaps the support member. Wear lines are added to the wear plate to observe and judge its wear condition. However, in use, when displacement or misalignment occurs between the connecting passage and the car body, the wear blocks, driven by the car body, generate a movement trend opposite to that of the connecting passage. The internal stress of this movement trend pushes the screws on the wear blocks, forming radial shear force on the bolts. Excessive shearing can cause bolt breakage and nut detachment, damaging the car body or the connecting passage during use. Summary of the Invention

[0006] The technical problem to be solved by this invention is that the screws used to fix the wear block to the middle frame will break due to shearing by the wear block.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an intermediate frame assembly, including a bottom frame, a connecting frame fixed on the bottom frame, and a wear plate disposed at the bottom of the bottom frame. The wear plate is fixed at the bottom of the bottom frame and has a long strip-shaped structure. A wrapping protrusion is provided on the side of the wear plate. The wrapping protrusion and the wear plate are perpendicular to each other. The wrapping protrusion and the wear plate cover the corners of the bottom frame, and the wrapping protrusion wraps and protects the corners of the bottom frame.

[0008] Furthermore, the connecting frame is a ring structure formed by connecting profiles, and the side of the connecting frame is fixedly connected to the canopy.

[0009] Furthermore, it also includes a sealing strip installed on the bottom frame, the sealing strip and the wrapping protrusion being disposed on the same side of the bottom frame.

[0010] Furthermore, it also includes a positioning pin and a positioning hole seat installed on the connecting frame. The positioning pin is inserted into the positioning hole seat, and the positioning pin and the positioning hole seat are respectively located at different positions on the connecting frame.

[0011] Furthermore, it also includes a fabric clamping frame installed on the connecting frame, the fabric clamping frame and the positioning pin being respectively located on both sides of the connecting frame, and the fabric clamping frame being provided with a curved clamping groove.

[0012] Furthermore, it also includes a pull rod installed on the connecting frame, a connecting hook fixed on the pull rod, and a connecting block provided on the connecting frame. The pull rod drives the connecting hook to move relative to the connecting block within the connecting frame, and the connecting hook can clamp onto the connecting block.

[0013] Furthermore, the connecting frame is provided with a sliding groove, and the pull rod is slidably disposed in the sliding groove.

[0014] Furthermore, the intermediate frame assembly also includes a pull rod handle, which is hinged to the connecting frame, and the end of the pull rod handle is hinged to the pull rod.

[0015] Furthermore, the wear plate covers and protects the two corners of the bottom frame.

[0016] Furthermore, a through channel includes any of the aforementioned intermediate frame components.

[0017] The beneficial effects of this invention are that, by using the above-mentioned through channel and its intermediate frame assembly, a wrapping protrusion is added to the wear plate, which covers and protects the corner of the bottom frame. When the wear plate moves under the drive of the vehicle body, the right-angle structure between the wrapping protrusion and the wear plate shifts the center of gravity of the wear plate, causing the radial shear force on the screws fixing the wear plate to shift, reducing the risk of screw breakage. At the same time, under the protection of the two wrapping protrusions, the compressive force on the corner of the bottom frame is reduced, preventing deformation of the corner of the bottom frame. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of a through-channel according to the present invention;

[0021] Figure 2 This is a perspective view of the middle frame component of the present invention;

[0022] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0024] Figure 5 yes Figure 2 A magnified view of a section at point C;

[0025] Figure 6 yes Figure 2 A magnified view of a section at point D;

[0026] Figure 7 yes Figure 2 The side view of the middle frame component shown;

[0027] Figure 8 It is along Figure 7 Sectional view of EE;

[0028] Figure 9 yes Figure 7 A magnified view of a section at point F in the middle;

[0029] Figure 10 yes Figure 2 A schematic diagram showing the splicing of the middle frame components;

[0030] In the figure: middle frame assembly 10, bottom frame 110, connecting frame 120, wear plate 130, wrapping protrusion 131, sealing strip 140, positioning pin 151, positioning hole seat 152, fabric clamping frame 141, pull rod handle 161, pull rod 162, connecting hook 163, connecting stop 164. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the invention, and should not be construed as limiting the invention. Rather, embodiments of the invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0033] like Figure 1 As shown, this application provides a through passage, including a middle frame assembly 10. Two middle frame assemblies 10 are symmetrically arranged, and the two middle frame assemblies 10 can be spliced ​​and disassembled to complete the coupling and uncoupling of train carriages.

[0034] like Figures 2 to 10 As shown, the middle frame assembly 10 includes a bottom frame 110, a connecting frame 120 fixed on the bottom frame 110, and a wear plate 130 disposed at the bottom of the bottom frame 110.

[0035] like Figure 2 , Figure 7 and Figure 8As shown, the bottom frame 110 has a long strip structure and is made of a square-section profile. The bottom frame 110 serves as a support and is attached to the vehicle body. It is fixed to the bottom of the connecting frame 120, which is roughly a ring-shaped structure formed by connecting profiles. The connecting frame 120 is fixedly connected to the canopy of the passageway; one side of the connecting frame 120 is used for the mating of two intermediate frame components 10, and the other side is used for connecting the canopy. The wear plate 130 is fixed to the bottom of the bottom frame 110 and is in direct contact with the vehicle body. The wear plate 130 has a long strip-shaped plate structure and can move relative to the vehicle body. Several bolts are inserted through the wear plate 130, with the ends of the bolts passing through the wear plate and then fitting into the bottom frame 110. The bolts fix the wear plate 130 to the bottom frame 110. The wear plate 130 replaces the bottom frame 110 in bearing the contact friction generated between the passageway and the vehicle body. The wear plate 130 has a wrapping protrusion 131 on its side. The wrapping protrusion 131 and the wear plate 130 are roughly perpendicular to each other. The wrapping protrusion 131 and the wear plate 130 cover the corner of the bottom frame 110. The wrapping protrusion 131 wraps and protects the corner of the bottom frame 110. In this embodiment, the wrapping protrusion 131 is preferably only provided on one side of the wear plate 130 and corresponds to the side where it is spliced ​​with the middle frame assembly 10.

[0036] like Figure 10 As shown, when the two intermediate frame assemblies 10 are spliced, the wrapping protrusions 131 on the wear plate 130 contact each other, and the two wear plates 130 seal the gaps at the bottom ends of the two bottom frames 110. The wrapping protrusions 131 on the wear plate 130 can offset the axis of motion of the wear plate 130, so that when the wear plate 130 moves relative to the vehicle body and the bottom frame 110, the force application point of the wear plate 130 shifts to the wrapping protrusions 131. The wrapping protrusions 131 push against the corners of the bottom frame 110, significantly reducing the radial shear force of the wear plate 130 on the bolts and preventing bolts from falling off. After the two intermediate frame assemblies 10 are spliced, the wrapping protrusions 131 contact and press against each other, reducing the stress on the bottom frame 110 and preventing deformation of the bottom frame 110.

[0037] like Figures 1 to 6 As shown, the middle frame assembly 10 also includes a sealing strip 140 mounted on the bottom frame 110, a positioning pin 151 and a positioning hole seat 152 mounted on the connecting frame 120, and a fabric clamping frame 141 mounted on the connecting frame 120.

[0038] The sealing strip 140 and the wrapping protrusion 131 are located on the same side of the bottom frame 110. The sealing strip 140 is fixedly embedded in the bottom frame 110 in a ring shape. When the two bottom frames 110 are joined together, the two sealing strips 140 are spliced ​​together to further seal the gap between the two bottom frames 110. The positioning pin 151 can be inserted into the positioning hole seat 152. The positioning pin 151 and the positioning hole seat 152 are located at different positions on the connecting frame 120. The positioning pin 151 on the connecting frame 120 of one set of intermediate frame assemblies 10 corresponds to the positioning hole seat 152 on the connecting frame 120 of another set of intermediate frame assemblies 10. When the two intermediate frame assemblies 10 are joined together, the positioning pin 151 in one intermediate frame assembly 10 is inserted into the positioning hole seat 152 in the other intermediate frame assembly 10 to complete the positioning of the two positioning frame assemblies 10. The fabric clamping frame 141 and the positioning pin 151 are respectively located on both sides of the connecting frame 120. The fabric clamping frame 141 is provided with a curved clamping groove, which can be used to clamp and fix the edge of the canopy fabric in the passage.

[0039] like Figures 7 to 9 As shown, the intermediate frame assembly 10 also includes a pull rod handle 161 mounted on the connecting frame 120, a pull rod 162 hinged to the pull rod handle 161, a connecting hook 163 fixed on the pull rod 162, and a connecting block 164 provided on the connecting frame 120.

[0040] The connecting frame 120 has a sliding groove inside. The pull rod handle 161 is hinged to the inside of the connecting frame 120. The end of the pull rod handle 161 extends into the sliding groove of the connecting frame 120. The pull rod 162 is movably disposed in the sliding groove of the connecting frame 120. The pull rod 162 is disposed on one side of the connecting frame 120. The pull rods 162 on the two intermediate frames are disposed on two symmetrical sides and are controlled by two symmetrical pull rod handles 161. The pull rod handles 161 control the pull rod 162 to move in the connecting frame 120. The connecting hook 163 is fixed on the pull rod 162. The bent part of the connecting hook 163 is disposed on the outside of the connecting frame 120. The connecting hook 163 corresponds to the connecting stop 164. When the connecting hook 163 moves relative to the connecting frame 120, the connecting hook 163 can move to the position of the connecting stop 164 of the other intermediate frame assembly 10. The two intermediate frame assemblies 10 can be fixed by the interlocking of the connecting hook 163 and the connecting stop 164.

[0041] In embodiments not shown in the figures, the wrapping protrusions 131 on the wear plate 130 cover and protect the two symmetrical corners of the bottom frame 110, further increasing the width of the wear plate 130, reducing the loss of friction, and also reducing the radial shear force on the screw in another direction.

[0042] In use, the two ends of the aforementioned optimal through-passage are respectively installed on adjacent car bodies. The two intermediate frame assemblies 10 in the through-passage correspond to each other and are brought close together until the sealing strip 140 and the wrapping protrusion 131 contact each other, sealing and protecting the gap between the two intermediate frame assemblies 10. At this time, the positioning pin 151 is inserted into the positioning hole seat 152 of the other intermediate frame assembly 10, completing the spatial positioning of the two connecting frames 120. Then, it rotates within the connecting frame 120. The lever handle 161 controls the lever 162 to slide within the sliding groove, causing the connecting hook 163 to move relative to the connecting block 164 until the connecting hook 163 clamps onto the connecting block 164 of the two intermediate frame assemblies 10, thus fixing the intermediate frame assemblies 10 on both sides and completing the coupling process of the two carriages. When it is necessary to uncoupling, the lever handle 161 is rotated in the opposite direction again, causing the lever 162 to slide in the opposite direction within the sliding groove, thereby causing the connecting hook 163 to release its clamp on the connecting block 164.

[0043] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A middle frame component, characterized in that: The device includes a base frame (110), a connecting frame (120) fixed on the base frame (110), and a wear plate (130) disposed at the bottom of the base frame (110). The wear plate (130) is fixed at the bottom of the base frame (110) and has a long strip-shaped structure. The wear plate (130) has a wrapping protrusion (131) on its side. The wrapping protrusion (131) and the wear plate (130) are perpendicular to each other. The wrapping protrusion (131) and the wear plate (130) cover the corners of the base frame (110) and the wrapping protrusion (131) wraps and protects the corners of the base frame (110).

2. The intermediate frame component according to claim 1, characterized in that: The connecting frame (120) is a ring structure formed by connecting profiles, and the side of the connecting frame (120) is fixedly connected to the tarpaulin.

3. The intermediate frame component according to claim 1, characterized in that: It also includes a sealing strip (140) mounted on the bottom frame (110), the sealing strip (140) and the wrapping protrusion (131) being disposed on the same side of the bottom frame (110).

4. A middle frame component according to claim 1, characterized in that... It also includes a positioning pin (151) and a positioning hole seat (152) installed on the connecting frame (120). The positioning pin (151) is inserted into the positioning hole seat (152). The positioning pin (151) and the positioning hole seat (152) are respectively located at different positions on the connecting frame (120).

5. A middle frame component according to claim 4, characterized in that: It also includes a fabric clamping frame (141) installed on the connecting frame (120), the fabric clamping frame (141) and the positioning pin (151) are respectively located on both sides of the connecting frame (120), and the fabric clamping frame (141) is provided with a curved clamping groove.

6. A middle frame component according to claim 1, characterized in that: It also includes a pull rod (162) installed on the connecting frame (120), a connecting hook (163) fixed on the pull rod (162), and a connecting block (164) provided on the connecting frame (120). The pull rod (162) drives the connecting hook (163) to move relative to the connecting block (164) within the connecting frame (120), and the connecting hook (162) can clamp on the connecting block (164).

7. A middle frame component according to claim 6, characterized in that: The connecting frame (120) is provided with a sliding groove, and the pull rod (162) is slidably disposed in the sliding groove.

8. A middle frame component according to claim 6, characterized in that: It also includes a lever handle (161), which is hinged to the connecting frame (120), and the end of the lever handle (161) is hinged to the lever (162).

9. A middle frame component according to claim 1, characterized in that: The wear plate (130) covers and protects the two corners of the bottom frame (110).

10. A through passage, characterized in that: Includes the intermediate frame component as described in any one of claims 1 to 8.

Images