Anti-falling hoisting structure for engine cylinder block

Abstract

The utility model discloses an anti-drop hoisting structure for an engine cylinder body, which is characterized in that a hoisting ring is arranged on a positioning seat, at least one mounting hole vertically penetrating through a body of the positioning seat is arranged on the positioning seat and positioned beside the hoisting ring, a first threaded section is arranged at the upper part of the side wall of the mounting hole, and a hoisting bolt is arranged in the mounting hole and comprises an end part and a rod part; a second threaded section and a third threaded section are arranged on the middle portion and the lower portion of the rod portion respectively, the second threaded section can be in threaded connection with the first threaded section, when the third threaded section is connected with the engine cylinder body, at least part of the lower end of the end portion abuts against the upper end of the positioning base, and the second threaded section is located below the first threaded section. According to the hoisting structure, the second threaded section is matched with the first threaded section, and the end part is matched with the upper end of the positioning seat, so that the lifting bolt can be prevented from being upwards or downwards separated from the positioning seat, an anti-falling function is realized, and the engine cylinder body can be prevented from falling off in the hoisting process after the hoisting structure is assembled with the engine cylinder body.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting device technical field especially relates to a kind of anti-falling hoisting structure for engine cylinder. BACKGROUND

[0002] When assembling some large components, hoisting structure is needed to complete the movement of large components, such as engine cylinder assembly, which is heavy, needs to be lifted and adjusted to the right position before placing it on the process tray, so the hoisting structure itself or its connection with the engine cylinder needs to be stable and easy to operate.

[0003] In the prior art, for example, the application number is 201910111435.6, a kind of engine cylinder hoist, which discloses a hoist body and a connecting bolt connected with the hoisting hole of the cylinder, the positioning pin on the hoist body is attached to the side wall of the cylinder corresponding to the model of the positioning scale, the connecting bolt is aligned with the hoisting hole of the cylinder of the model for hoisting, but in the above-mentioned hoist, the connecting bolt is connected with the cylinder, but the connecting bolt has the risk of falling off when not connected with the cylinder. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of anti-falling hoisting structure for engine cylinder, hoisting structure itself can prevent lifting bolt from separating from positioning seat upward or downward by the cooperation of second threaded section and first threaded section and the cooperation of end and upper end of positioning seat, with anti-falling function, after hoisting structure is assembled with transmitter cylinder, positioning seat, lifting bolt and engine cylinder form stable force system through force transmission, to prevent engine cylinder from falling off in hoisting process.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme: a kind of anti-falling hoisting structure for engine cylinder, comprising:

[0006] Positioning seat, which is provided with a lifting ring, at least one mounting hole vertically penetrating the body is provided on the side of the positioning seat above the lifting ring, the upper part of the mounting hole side wall is provided with a first threaded section,

[0007] Lifting bolt, which is arranged in the mounting hole, the lifting bolt includes an end and a rod part arranged at the lower end of the end, the middle and lower part of the rod part are respectively provided with a second threaded section and a third threaded section, the second threaded section can be screwed with the first threaded section, when the third threaded section is connected with the engine cylinder, the lower end of the end at least partially abuts with the upper end of the positioning seat, and the second threaded section is below the first threaded section.

[0008] As a further optimization, the mounting hole comprises a narrow hole and a wide hole in communication, and the first threaded section is formed on the side wall of the narrow hole.

[0009] As a further optimization, the end portion is a cylindrical structure, and a projection of the end portion along the central axis covers the upper end of the mounting hole.

[0010] As a further optimization, the circumferential side wall of the end portion is provided with anti-skid lines, facilitating rotation of the lifting bolt.

[0011] As a further optimization, the lifting bolt is provided with two.

[0012] As a further optimization, the central axis of the lifting eye is located in a plane formed by the central axes of the two lifting bolts, so that the balance and stability of the lifting process can be ensured.

[0013] As a further optimization, a projection of the third threaded section along the central axis of the rod portion is located in a projection of the second threaded section along the central axis of the rod portion, preferably, the first threaded section is an M20 internal thread, the second threaded section is an M20 external thread, and the third threaded section is an M16 external thread.

[0014] Compared with the prior art, the lifting structure has the following beneficial effects:

[0015] 1. The lifting structure itself has an anti-falling function, and the cooperation of the second threaded section and the first threaded section and the cooperation of the end portion and the upper end of the positioning seat can prevent the lifting bolt from being separated from the positioning seat upward or downward;

[0016] 2. After the lifting structure is assembled with the engine cylinder body, the engine cylinder body exerts a downward pulling force on the lifting bolt, the lifting bolt exerts a downward pressure on the positioning seat through the end portion, and the positioning seat, the lifting bolt and the engine cylinder body form a stable force system, so that the engine cylinder body can be prevented from falling off during the lifting process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural view of the utility model.

[0018] Figure 2 is a sectional view of the utility model.

[0019] Figure 3 is a bottom view of the positioning seat of the utility model.

[0020] Figure 4 is a structural view of the lifting bolt of the utility model.

[0021] Figure 5 is an application schematic view of the utility model. DETAILED DESCRIPTION

[0022] The utility model discloses the specific embodiment of the utility model is as follows, and the technical scheme of the utility model is further described in connection with the drawings, but the utility model is not limited to these embodiments.

[0023] As Figures 1 to 5 The utility model discloses an engine cylinder body is with anti -drop hoist structure, including positioning seat 10 and hoisting bolt 30, the center hole 100 of positioning seat 10 is welded with the ring 20 for connecting with electric hoist, positioning seat 10 is located on the lateral side of ring 20 and is equipped with at least one mounting hole 11 that penetrates its body 10 vertically, preferably mounting hole 11 has two, two mounting holes 11 are symmetrical about ring 20, the upper portion of mounting hole 11 lateral wall is equipped with first threaded section 101, hoisting bolt 30 has two respectively corresponding set in two mounting holes 11, hoisting bolt 30 includes end 31 and the rod portion 32 set in end 31 lower end, and the middle part and lower part of rod portion 32 are equipped with second threaded section 301 and third threaded section 302 respectively, second threaded section 301 can be screwed with first threaded section 101, when third threaded section 302 is connected with engine cylinder body 40, the lower end of end 31 at least partially with the upper end of positioning seat 10 abuts, and second threaded section 301 is located below first threaded section 101.

[0024] In the utility model, the lifting bolt 30 is arranged in the mounting hole 11 on the positioning seat 10 for connecting the engine cylinder body 40. For the assembly of the lifting structure itself, in the process of arranging the lifting bolt 30 in the mounting hole 11, the side of the lower part of the rod part 32 with the third threaded section 302 is inserted into the mounting hole 11 from top to bottom, the projection of the third threaded section 302 along the central axis of the rod part 32 is arranged in the projection of the second threaded section 301 along the central axis of the rod part 31, for example, the first threaded section 101 is M20 internal thread, the second threaded section 301 is M20 external thread, and the third threaded section 302 is M16 external thread, so that the third threaded section 302 can pass through the first threaded section 101 on the mounting hole 11 until the second threaded section 301 on the rod part 32 is located above the first threaded section 101, at this time, the second threaded section 301 is combined with the first threaded section 101 in the form of screwing by rotating the lifting bolt 30 until the second threaded section 301 is completely located below the first threaded section 101 after passing through the first threaded section 101, and the assembly of the lifting bolt 30 on the positioning seat 10 is completed; for the installation of the lifting structure and the engine cylinder body 40, after the second threaded section 301 passes through the first threaded section 101 as described above, since the end part 31 is located above the second threaded section 301 on the rod part 32, the lifting bolt 30 moves downward in the mounting hole 11 until the end part 31 abuts against the upper end of the positioning seat 10, and the positioning seat 10 abuts against the engine cylinder body 40, so that the lifting bolt 30 corresponds to the locking hole 400 on the engine cylinder body 40, after the lower part of the lifting bolt 30 is inserted into the locking hole 400, since the upper end of the internal thread in the locking hole 400 is in contact with the lower end of the third threaded section 302, the internal thread in the locking hole 400 will lift the lifting bolt 30 upward without rotating the lifting bolt 30, and the end part 31 is separated from the positioning seat 10 upward, in one assembly form, the third threaded section 302 is screwed with the internal thread of the locking hole 400 by rotating the lifting bolt 30 downward along the mounting hole 11 while keeping the positioning seat 10 abutting against the engine cylinder body 40, the lifting bolt 30 is continuously rotated and moved downward until the lower end of the end part 31 abuts against the upper end of the positioning seat 10, and the installation of the lifting structure and the engine cylinder body 40 is completed, in another assembly form, the positioning seat 10 can not abut against the engine cylinder body in the initial stage, but the positioning seat 10 is pressed downward by the end part 31 until the positioning seat 10 abuts against the engine cylinder body 40 in the process of rotating the lifting bolt 30 (the third threaded section 302 is screwed with the internal thread of the locking hole 400). After the assembly is completed, in the lifting process, the lifting ring 20 pulls the positioning seat 10 upward, and the positioning seat 10 pulls the engine cylinder body upward through the abutting end part 31 (lifting bolt 30).

[0025] The assembling and limiting of the lifting bolt 30 and the positioning seat 10 are realized through cooperation of the second threaded section 301 and the first threaded section 101, when the lifting bolt 30 and the positioning seat 10 are assembled, the cooperation of the second threaded section 301 and the first threaded section 101 can prevent the lifting bolt 30 from separating upward from the positioning seat 10, and the cooperation of the end 31 and the hole diameter of the mounting hole 11 can prevent the lifting bolt 30 from separating downward from the positioning seat 10, so that the anti-falling function of the lifting bolt 30 is realized; when the engine cylinder body 40 is hoisted, the engine cylinder body 40 exerts downward pulling force on the lifting bolt 30, the lifting bolt 30 exerts downward pressure on the positioning seat 10 through the end 31, the positioning seat 10, the lifting bolt 30 and the engine cylinder body 40 form a stable stress system, and the engine cylinder body 40 can also be prevented from falling during hoisting.

[0026] For the specific structure of the mounting hole 11, the mounting hole 11 can include a narrow hole 111 and a wide hole 112 in communication, the narrow hole 111 is located above the wide hole 112, the first threaded section 101 is formed on the side wall of the narrow hole 111, and the setting of the wide hole 112 can allow the lifting bolt 30 in the locking hole 400 to move upward relatively freely when the lifting bolt 30 is lifted by the internal thread.

[0027] Preferably, the end 31 is a cylindrical structure, and the projection of the end 31 along the central axis covers the upper end of the mounting hole 11, so that the end 31 can stably abut against the upper end of the positioning seat 10.

[0028] The circumferential side wall of the end 31 is provided with anti-skid lines (not shown), so that the lifting bolt 30 can be rotated conveniently.

[0029] The two lifting bolts 30 are arranged, and the central axis of the lifting ring 20 is located in the plane formed by the central axes of the two lifting bolts 30, so that the balance and stability during hoisting can be ensured.

[0030] The hoisting mechanism of the utility model does not need to use tools to assemble or replace the lifting bolt 30, and the operation is simple.

[0031] The specific embodiments described in the present application are only examples of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. An anti-fall-off hoisting structure for an engine cylinder block, characterized in that, The utility model relates to a lifting bolt and positioning seat for engine cylinder block, comprising: a positioning seat, which is provided with a lifting ring, at least one mounting hole vertically penetrating the body of the positioning seat is arranged beside the lifting ring, a first threaded section is arranged on the upper part of the side wall of the mounting hole, a lifting bolt, which is arranged in the mounting hole, comprises an end part and a rod part arranged at the lower end of the end part, a second threaded section and a third threaded section are arranged on the middle part and the lower part of the rod part respectively, the second threaded section can be screwed with the first threaded section, when the third threaded section is connected with the engine cylinder block, the lower end of the end part at least partially abuts against the upper end of the positioning seat, and the second threaded section is below the first threaded section.

2. The anti-falling hoisting structure for an engine block according to claim 1, characterized by The mounting hole comprises a narrow hole and a wide hole in communication, and the first threaded section is formed on the side wall of the narrow hole.

3. The anti-falling hoisting structure for an engine block according to claim 1, characterized by The end part is in a cylindrical structure, and the projection of the end part along the central axis covers the upper end of the mounting hole.

4. The anti-falling hoisting structure for an engine block according to claim 3, characterized by Anti-skid lines are arranged on the side wall of the end part.

5. The anti-drop hoisting structure for an engine block according to claim 1, characterized by The lifting bolt is provided with two.

6. The anti-falling hoisting structure for an engine block according to claim 5, characterized by The central axis of the lifting ring is located in the plane formed by the central axes of the two lifting bolts.

7. The anti-drop hoisting structure for an engine block according to claim 1, characterized by The projection of the third threaded section along the central axis of the rod part is located in the projection of the second threaded section along the central axis of the rod part.

8. The anti-falling hoisting structure for an engine block according to claim 1 or 7, characterized by The first threaded section is an M20 internal thread, the second threaded section is an M20 external thread, and the third threaded section is an M16 external thread.

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