Lifting hook easy to open and close and steel box girder lifting construction device

Abstract

The utility model discloses a lifting hook easy to open and close and a steel box girder hoisting construction device.The lifting hook easy to open and close comprises a lifting hook body, a connecting cap and an elastic piece, the lifting hook body is provided with an opening, the two ends, corresponding to the opening, of the lifting hook body are provided with a guide part and a butt joint part respectively, and the connecting cap is arranged at the opening; a sliding part is arranged at the end, close to the guide part, of the connecting cap, the sliding part is arranged on the guide part in a sliding mode, a connecting part is arranged at the end, away from the sliding part, of the connecting cap, the connecting part and the butt joint part are oppositely arranged and detachably connected through the connecting piece correspondingly, and the elastic piece is arranged between the guide part and the connecting cap. According to the lifting hook disclosed by the utility model, the connecting part can be correspondingly butted with the butting part in a natural state, so that the lifting hook is simpler and more convenient to open and close, and the use convenience and practicability of the lifting hook are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering hoists, and further relates to an easy-to-open and close hook and a steel box girder hoisting construction device. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a common structural form for large-span bridges. It is generally used on bridges with larger spans. It is called a steel box girder because of its box-like appearance. During construction, a lifting device is required to lift the steel box girder.

[0003] When the existing steel box girder hoisting construction device is in use, it is generally connected to the steel box girder's sling through the hook at the bottom. In order to prevent the hook and the sling from falling off, a closing buckle is also provided at the end of the hook. However, the existing hook closing buckle is troublesome to open and close, and it is necessary to use a tool to loosen the screw to operate the closing buckle. For this reason, we propose a steel box girder hoisting construction device. Utility Model Content

[0004] In view of the above technical problems, the purpose of the utility model is to provide an easy-to-open and close hook, which can be conveniently opened and closed to solve the problems raised in the above background technology. Another purpose of the utility model is to provide a steel box girder lifting construction device with the above-mentioned easy-to-open and close hook.

[0005] In order to achieve the above object, the utility model provides an easy-to-open and close hook, comprising:

[0006] A hook body, wherein an opening is formed on the hook body, and two ends of the hook body corresponding to the opening are respectively provided with a guide portion and a docking portion;

[0007] A connecting cap, the connecting cap is arranged at the opening, a sliding portion is arranged at one end of the connecting cap close to the guide portion, the sliding portion is slidably arranged on the guide portion, a connecting portion is arranged at one end of the connecting cap away from the sliding portion, the connecting portion and the docking portion are arranged opposite to each other and are detachably connected via a connecting piece;

[0008] An elastic member is arranged between the guide portion and the connecting cap so that the connecting portion can be correspondingly connected with the connecting portion in a natural state.

[0009] By setting a connecting cap, the connecting part and the docking part are arranged relative to each other and are detachably connected through a corresponding connecting piece. The elastic piece is arranged between the guide part and the connecting cap. The connecting part can dock with the docking part in a natural state, making the opening and closing of the hook simpler and more convenient, and effectively improving the convenience and practicality of the use of the hook.

[0010] In some embodiments, a sliding groove is provided on one end of the sliding portion facing the guiding portion, and the guiding portion is correspondingly inserted into the sliding groove for sliding motion.

[0011] By arranging the sliding groove to match the guide part, the guide part is correspondingly inserted into the sliding groove, and the stability and reliability of the directional sliding of the connecting cap toward the docking part are enhanced, providing a guarantee for the docking of the docking part and the connecting part.

[0012] In some embodiments, a guide groove is formed on the guide portion, and an extending direction of the guide groove is consistent with an extending direction of the sliding groove;

[0013] A limit block matched with the guide groove is arranged at one end of the sliding part away from the connecting part. The limit block is arranged in the sliding groove and faces the center of the sliding groove so that the sliding part is movably connected with the guide part.

[0014] By providing the guide groove and the corresponding limit block, the connecting cap will not slide excessively and thus be separated from the guide portion. In addition, the directional stability of the sliding of the connecting cap is further enhanced, thereby effectively improving the reliability of the device.

[0015] In some embodiments, the elastic member is disposed in the sliding groove.

[0016] By arranging the elastic member in the sliding groove, the spring member can be effectively prevented from being accidentally contacted or damaged during use, while avoiding corrosion from the external environment, thereby effectively improving the durability and practicality of the device. In addition, the overall design can be made more compact, making the device more beautiful as a whole.

[0017] In some embodiments, the guide portion and the docking portion are arranged opposite to each other, and the elastic member is in a compressed state.

[0018] In some embodiments, the guide portion and the docking portion are arranged in parallel, and the elastic member is in a stretched state.

[0019] In some embodiments, a docking groove is formed on one end of the connecting portion close to the docking portion, and the docking groove corresponds to the docking portion.

[0020] By arranging the docking groove to match the docking portion, the docking portion and the connecting cap are engaged and connected, thereby further enhancing the connection stability of the connecting cap in the closed state, thereby effectively improving the reliability of the device.

[0021] In some embodiments, a first screw hole connected to the docking groove is opened on the connecting part, and a second screw hole is opened on the docking part. The first screw hole and the second screw hole are correspondingly connected when the connecting part and the docking part are correspondingly docked, and the connecting piece is correspondingly inserted into the first screw hole and the second screw hole to achieve the closure of the easy-to-open and close hook.

[0022] In some embodiments, an anti-slip ring is provided on the connecting cap.

[0023] According to another aspect of the utility model, the utility model further provides a steel box beam hoisting construction device, comprising a cross beam, and further comprising:

[0024] A moving mechanism, wherein the moving mechanism is slidably disposed on the crossbeam;

[0025] The easy-open-and-close hook described in any of the above embodiments is connected to the moving mechanism via a steel rope.

[0026] Compared with the prior art, the easy-open-and-close hook provided by the utility model has the following beneficial effects:

[0027] 1. The easy-to-open and close hook provided by the utility model is provided with a connecting cap, and the connecting part and the docking part are arranged opposite to each other and are detachably connected through a corresponding connecting piece. The elastic piece is arranged between the guide part and the connecting cap, and the connecting part can be docked with the docking part in a natural state, so that the opening and closing work of the hook is simpler and more convenient, and the convenience and practicality of the use of the hook are effectively improved.

[0028] 2. The easy-to-open and close hook provided by the utility model effectively prevents the spring part from being accidentally contacted or damaged during use by arranging the elastic part in the sliding groove, and at the same time avoids corrosion from the external environment, so as to effectively improve the durability and practicality of the device. In addition, it can also make the overall design more compact and make the equipment more beautiful as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0030] Figure 1 It is a structural schematic diagram of an easy-open-and-close hook of a preferred embodiment of the utility model;

[0031] Figure 2 It is a structural schematic diagram of part A of the easy-opening and closing hook of the preferred embodiment of the utility model.

[0032] Description of Figure Numbers:

[0033] The hook body 10 , the guide portion 11 , the docking portion 12 , the second screw hole 121 , the guide groove 13 , the connecting cap 20 , the connecting portion 21 , the first screw hole 211 , the sliding portion 22 , the sliding groove 23 , the limit block 24 , the anti-slip ring 25 , the elastic member 30 , and the connecting member 40 . DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0036] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In one embodiment, the reference specification Figure 1 and Figure 2The utility model provides an easy-to-open and close hook, comprising a hook body 10, a connecting cap 20 and an elastic member 30, wherein the hook body 10 is provided with an opening, and the two ends of the hook body 10 corresponding to the opening are respectively provided with a guide portion 11 and a docking portion 12, the connecting cap 20 is arranged at the opening, and a sliding portion 22 is provided at one end of the connecting cap 20 close to the guide portion 11, and the sliding portion 22 is slidably arranged on the guide portion 11, and a connecting portion 21 is provided at one end of the connecting cap 20 away from the sliding portion, the connecting portion 21 and the docking portion 12 are arranged opposite to each other, and are detachably connected by a corresponding connecting member 40, and the elastic member 30 is arranged between the guide portion 11 and the connecting cap 20, so that the connecting portion 21 can be docked with the docking portion 12 in a natural state.

[0040] Specifically, the hook body 10 is an integral casting structure, the opening can be opened on the side, the guide part 11 and the docking part 12 can be arranged opposite to each other, that is, the hook body 10 is C-shaped, the guide part 11 is arranged on the side of the hook body 10 corresponding to the opening away from the ground, and the docking part 12 is arranged on the side of the hook body 10 corresponding to the opening close to the ground, the guide part 11 extends toward the docking part 12, the connecting cap 20 is slidably arranged on the guide part 11, and the length of the connecting cap 20 is greater than the distance between the guide part 11 and the docking part 12, the connecting cap 20 can close the opening, and an elastic member 30 is arranged between the connecting cap 20 and the guide part 11, and the elastic member 30 is in a compressed state or a pulled state, so that the connecting cap 20 automatically docks with the docking part 12 in a natural state under the action of the elastic member 30, thereby realizing the convenience of opening and closing the hook.

[0041] In one embodiment, the reference specification Figure 1 and Figure 2 A sliding groove 23 is formed on one end of the sliding portion 22 facing the guiding portion 11, and the guiding portion 11 is correspondingly inserted into the sliding groove 23 for sliding motion.

[0042] Specifically, the sliding groove 23 is adapted to the guide portion 11 so that the guide portion 11 is correspondingly inserted into the sliding groove 23 , and the stability and reliability of the directional sliding of the connecting cap 20 toward the docking portion 12 are enhanced, providing a guarantee for the docking of the docking portion 12 and the connecting portion 21 .

[0043] In one embodiment, the reference specification Figure 1 and Figure 2 On the basis of the above embodiment, a guide groove 13 is provided on the guide portion 11, and the extension direction of the guide groove 13 is consistent with the extension direction of the sliding groove 23. A limit block 24 adapted to the guide groove 13 is provided on the end of the sliding portion 22 away from the connecting portion 21. The limit block 24 is arranged in the sliding groove 23 and faces the center of the sliding groove 23, so that the sliding portion 22 is correspondingly and movably connected with the guide portion 11.

[0044] Specifically, the guide groove 13 can be opened on the outer wall of the guide part 11, and the corresponding limit block 24 is arranged on the inner wall of the sliding groove 23, and close to the notch of the sliding groove 23, so that the limit block 24 is always stuck in the guide groove 13 during the sliding process, so that the connecting cap 20 will not slide excessively and then separate from the guide part 11. In addition, the directional stability of the sliding of the connecting cap 20 is further enhanced, and the reliability of the device is effectively improved.

[0045] In one embodiment, the reference specification Figure 1 and Figure 2 , the elastic member 30 is disposed in the sliding groove 23 .

[0046] Specifically, one end of the elastic member 30 is connected to the bottom of the sliding groove 23, and the other end of the elastic member 30 is connected to the head on the guide portion 11. By arranging the elastic member 30 in the sliding groove 23, the spring member can be effectively prevented from being accidentally contacted or damaged during use, while avoiding corrosion from the external environment, so as to effectively improve the durability and practicality of the device. In addition, it can also make the overall design more compact, making the device more beautiful as a whole.

[0047] In one embodiment, the guide portion 11 and the docking portion 12 are disposed opposite to each other, and the elastic member 30 is in a compressed state.

[0048] Specifically, when the guide portion 11 and the docking portion 12 are arranged relatively to each other and the elastic member 30 is in a compressed state, the connecting cap 20 can approach the docking portion 12 under the elastic force of the elastic member 30, thereby achieving the state in which the opening of the hook in a natural state is always kept closed by the connecting cap 20.

[0049] It should be pointed out that the elastic member 30 can be a coil spring, a rubber spring, or other elastic materials, depending on the actual situation and is not limited here.

[0050] In one embodiment, the reference specification Figure 1 and Figure 2 The guide portion 11 and the docking portion 12 are arranged in parallel, and the elastic member 30 is in a stretched state.

[0051] Specifically, when the guide portion 11 and the docking portion 12 are arranged in parallel and the elastic member 30 is in a compressed state, the connecting cap 20 can approach the docking portion 12 under the pulling force of the elastic member 30, thereby achieving the state in which the opening of the hook in a natural state is always kept closed by the connecting cap 20.

[0052] In one embodiment, the reference specification Figure 1 and Figure 2 On the basis of the above embodiment, a docking groove is provided on one end of the connecting portion 21 close to the docking portion 12 , and the docking groove corresponds to the docking portion 12 .

[0053] Specifically, the docking groove is matched with the docking portion 12 so that the docking portion 12 is engaged and connected with the connecting cap 20, thereby further enhancing the connection stability of the connecting cap 20 in the closed state, thereby effectively improving the reliability of the device.

[0054] In one embodiment, the reference specification Figure 1 and Figure 2 A first screw hole 211 connected to the docking groove is opened on the connecting part 21, and a second screw hole 121 is opened on the docking part 12. The first screw hole 211 and the second screw hole 121 are correspondingly connected when the connecting part 21 and the docking part 12 are correspondingly docked, and the connecting piece 40 is correspondingly inserted into the first screw hole 211 and the second screw hole 121 to realize the closure of the easy-to-open and close hook.

[0055] Specifically, the connecting member 40 can be a bolt, and the first screw hole 211 is opened on the side wall of the connecting part 21 and passes through the connecting docking groove. The second screw hole 121 is correspondingly opened on the side wall of the docking part 12. When the connecting part 21 and the docking part 12 are correspondingly docked, the first screw hole 211 and the second screw hole 121 are correspondingly connected to form a connecting hole. By screwing the connecting member 40 into the connecting hole, a stable connection between the connecting cap 20 and the docking part 12 is achieved.

[0056] In one embodiment, the reference specification Figure 1 and Figure 2 , an anti-slip ring 25 is provided on the connecting cap 20 .

[0057] Specifically, the anti-slip ring 25 is disposed on the outer wall of the connecting cap 20 to prevent the tool from sliding when in use, while ensuring that the worker can hold it safely and firmly, and can also effectively improve the operating efficiency.

[0058] It should be noted that the anti-slip ring 25 can be replaced by an anti-slip pattern to achieve the same effect.

[0059] The use process of the easy-to-open and close hook of the utility model is as follows: first, loosen and remove the connecting piece 40, so that its ends are withdrawn from the inside of the first screw hole 211 and the second screw hole 121, so as to release the positioning of the connecting cap 20, and then the personnel manually push the connecting cap 20 upward through the anti-slip ring 25 to drive the guide block to slide in the guide groove 13, so that the docking part 12 is disengaged from the limiting groove to open the opening, and then the rope corresponding to the hanging hole that needs to be put into the hook is passed through the opening into the hanging hole, and then the connecting cap 20 is loosened, so that the connecting cap 20 automatically resets and slides downward along the guide groove 13 under the action of the elastic member 30, so that the docking part 12 is correspondingly inserted into the limiting groove, and the first screw hole 211 and the second screw hole 121 are aligned, and then the connecting piece 40 is inserted and tightened to complete the opening closure of the hook.

[0060] The utility model further provides a steel box girder hoisting construction device, comprising a crossbeam, a moving mechanism and an easy-to-open and close hook in any of the above embodiments, wherein the moving mechanism is slidably arranged on the crossbeam, and the easy-to-open and close hook is connected to the moving mechanism by a steel rope.

[0061] Specifically, the steel box girder hoisting construction device having the easy-to-open and close hook in any of the above-mentioned embodiments can make the hook operation simpler and more convenient, and can make the hoisting operation more efficient and faster.

[0062] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An easy-to-open and close hook, characterized in that: include: A hook body, wherein an opening is formed on the hook body, and two ends of the hook body corresponding to the opening are respectively provided with a guide portion and a docking portion; A connecting cap, the connecting cap is arranged at the opening, a sliding portion is arranged at one end of the connecting cap close to the guide portion, the sliding portion is slidably arranged on the guide portion, a connecting portion is arranged at one end of the connecting cap away from the sliding portion, the connecting portion and the docking portion are arranged opposite to each other and are detachably connected via a connecting piece; An elastic member is arranged between the guide portion and the connecting cap so that the connecting portion can be correspondingly connected with the connecting portion in a natural state.

2. The easy-open-and-close hook according to claim 1, characterized in that: A sliding groove is provided on one end of the sliding part facing the guiding part, and the guiding part is correspondingly inserted into the sliding groove for sliding movement.

3. The easy-open-and-close hook according to claim 2, characterized in that: The guide portion is provided with a guide groove, and the extending direction of the guide groove is consistent with the extending direction of the sliding groove; A limit block matched with the guide groove is arranged at one end of the sliding part away from the connecting part. The limit block is arranged in the sliding groove and faces the center of the sliding groove so that the sliding part is movably connected with the guide part.

4. The easy-open-and-close hook according to claim 2 or 3, characterized in that: The elastic member is arranged in the sliding groove.

5. The easy-open-and-close hook according to claim 4, characterized in that: The guide portion and the docking portion are arranged opposite to each other, and the elastic member is in a compressed state.

6. The easy-open-and-close hook according to claim 4, characterized in that: The guide portion and the docking portion are arranged in parallel, and the elastic member is in a stretched state.

7. The easy-open-and-close hook according to claim 5, characterized in that: A docking groove is formed on one end of the connecting portion close to the docking portion, and the docking groove corresponds to the docking portion.

8. The easy-open-and-close hook according to claim 7, characterized in that: The connecting part is provided with a first screw hole connected to the docking groove, and the docking part is provided with a second screw hole. The first screw hole and the second screw hole are correspondingly connected when the connecting part and the docking part are correspondingly docked, and the connecting piece is correspondingly inserted into the first screw hole and the second screw hole to realize the closure of the easy-open and close hook.

9. The easy-open-and-close hook according to any one of claims 5-8, characterized in that: The connecting cap is provided with an anti-slip ring.

10. A steel box girder hoisting construction device, comprising a cross beam, characterized in that: Also includes: A moving mechanism, wherein the moving mechanism is slidably disposed on the crossbeam; The easy-open-and-close hook as described in any one of claims 1 to 9, wherein the easy-open-and-close hook is connected to the moving mechanism via a steel rope.

Images