Bolt mounting structure of paying-off tackle

Abstract

The utility model discloses a plug pin mounting structure of a paying-off tackle. The plug pin mounting structure comprises a frame and a plug pin, a limiting piece is arranged at the side part of the frame; the plug pin is suitable for penetrating through the limiting piece and the frame to be installed in an inserted mode. The plug pin is suitable for abutting against the limiting piece in the pulling-out direction to conduct limiting after the frame is pulled out. The safety pin has the beneficial effects that compared with an existing safety pin, the safety pin is provided with the limiting piece on the frame. The plug pin penetrates through the limiting piece to be connected with the frame in an inserted mode, and the plug pin can abut against the limiting piece in the pulling-out direction to conduct limiting. By means of the installation structure, the plug pin can be connected with the vehicle frame without a chain rope, accidents can be avoided in construction operation, and transportation is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pay-off trolley, in particular to a pay-off trolley bolt installation structure. BACKGROUND

[0002] In cable construction, the use of pay-off trolley bolt is very important. Its main function is to fix the trolley to prevent it from moving or falling off during the pay-off process, thereby ensuring the safety and smooth progress of cable construction.

[0003] The existing pay-off trolley bolt needs to install a chain rope on its bolt when in use, the other end of which is connected to the trolley frame to prevent the bolt from falling after being pulled out. However, the chain rope will inevitably age after a certain period of use and needs to be replaced, which is very inconvenient.

[0004] At the same time, the pay-off trolley bolt is a high-altitude operation when in normal use, and the bolt will sway in the air after being pulled out, which may come into contact with the cable and may cause accidents.

[0005] In addition, in the prior art, the pay-off trolley bolt needs to be fixed to the trolley frame by tape during transportation. Because the trolley will inevitably shake during transportation, the existing bolt may fall out during transportation, and the safety needs to be improved due to the nature of high-altitude operation.

[0006] Therefore, it is necessary to improve the existing pay-off trolley bolt installation structure. CONTENT OF THE INVENTION

[0007] The present application aims to provide a pay-off trolley bolt installation structure that can solve at least one of the defects in the background art.

[0008] To achieve the above at least one purpose, the technical solution adopted by the present application is: a pay-off trolley bolt installation structure, comprising a trolley frame and a bolt; the trolley frame is provided with a limiting piece on the side; the bolt is adapted to be inserted and installed through the limiting piece and the trolley frame; the bolt is adapted to abut the limiting piece in the pulling-out direction after being pulled out of the trolley frame to limit.

[0009] Preferably, the bolt comprises a transverse section and a curved section; the bolt is adapted to be limited and fitted with the limiting piece through the transverse section.

[0010] Preferably, one side of the limiting piece is provided with a limiting hole; the transverse section is adapted to be inserted and installed through the limiting hole and the trolley frame; the transverse section is limited and fitted with the limiting piece by setting a limiting part with a size larger than the limiting hole.

[0011] Preferably, the transverse section comprises a first shaft section and a second shaft section; the first shaft section is used for being inserted into the frame, and the second shaft section is used for being slidably matched with the limiting hole; the diameter of the first shaft section is greater than that of the second shaft section, so that the first shaft section is used as the limiting part of the limiting hole.

[0012] Preferably, the outer side of the transverse section is radially provided with a limiting column used for being inserted into the frame; the limiting column is adapted to be abutted with the limiting hole as the limiting part of the transverse section.

[0013] Preferably, the distance from the limiting hole to the frame is less than the distance from the limiting part to the top end of the transverse section, so that the top end of the transverse section is located in the frame when the limiting part is abutted with the limiting member.

[0014] Preferably, the limiting member passes through the limiting hole from the inner side to the outer side of the limiting member through the bending section, and then the limiting member carrying the installed limiting member is fixedly installed on the frame.

[0015] Preferably, the limiting member is provided with a mounting hole on one side of the limiting hole; the bolt is adapted to pass through the mounting hole through the limiting column to be installed after the limiting member is fixedly installed on the frame; wherein the limiting column is misaligned with the mounting hole in the pulling-out direction when the bolt is in a natural state.

[0016] Compared with the prior art, the application has the beneficial effects that:

[0017] Compared with the existing bolt, the application is provided with a limiting member on the frame. The bolt is inserted into the limiting member and the frame to be installed, and the bolt can be abutted with the limiting member in the pulling-out direction to be limited. Such an installation structure can make the bolt no longer need to be connected with the chain and the frame, and can avoid accidents in construction work and be more convenient for transportation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the prior art of the utility model.

[0019] Figure 2 It is a structure schematic view of the frame and the bolt when they are connected.

[0020] Figure 3 It is a structure schematic view of the frame and the bolt.

[0021] Figure 4 It is a state schematic view of the bolt when it passes through the disengagement hole.

[0022] Figure 5 This is a schematic diagram of the state when the latch of the utility model is pulled out from the frame.

[0023] Figure 6 It is a structural schematic diagram of the present invention when the limiting portion and the limiting member are offset against each other.

[0024] Figure 7 This is a schematic diagram of the position of the end portion of the transverse section when it is pulled out of the frame in the present invention.

[0025] Figure 8 This is another structural schematic diagram of the latch in the present invention.

[0026] Figure 9 It is a structural schematic diagram of the disengagement hole and the installation hole in the utility model.

[0027] In the figure: frame 1, disengagement hole 10, limiting member 11, limiting hole 110, mounting hole 111, hollow portion 12, insertion hole 120, latch 2, transverse section 20, first shaft section 200, second shaft section 201, curved section 21, limiting column 22, limiting portion 23, chain rope 3. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] The terms "comprise" and "comprising", and any variations thereof, as used in the specification and in claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of steps or elements does not necessarily comprise only those steps or elements but can include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] As shown in one of the preferred embodiments of the present application, Figures 1 to 9 a wireline trolley bolt, comprising a trolley 1 and a bolt 2. The trolley 1 is provided with a limiting member 11 on the side thereof. The bolt 2 can be inserted through the limiting member 11 and the trolley 1 for installation. The bolt 2 can be limited by the limiting member 11 in the pulling-out direction after being pulled out of the trolley 1.

[0033] It should be understood that, as shown in the prior art, Figure 1 the bolt 2 of the wireline trolley needs to be connected with a chain 3 in use, and the other end of the chain 3 is connected with the trolley 1, so that the bolt 2 will not fall after being pulled out. However, the chain 3 will be aged after being used for a certain period of time and needs to be replaced, which is very inconvenient. At the same time, the bolt 2 of the wireline trolley is used in high-altitude operation, and the bolt 2 will swing in the air after being pulled out, which may come into contact with a cable and may cause an accident, which leads to the fact that the safety factor of the connection between the bolt 2 and the trolley 1 needs to be improved. In addition, in the prior art, the bolt 2 of the wireline trolley needs to be fixed with the trolley 1 by using adhesive tape during transportation. Because the bolt 2 will shake during transportation, the bolt 2 may fall out during transportation, which adds trouble to the transportation process.

[0034] Therefore, in the present embodiment, the limiting member 11 is arranged on the side of the trolley 1. The bolt 2 can be inserted through the limiting member 11 and the trolley 1 for installation, and the bolt 2 can be limited by the limiting member 11 in the pulling-out direction. Such an installation structure can make the bolt 2 no longer need to be connected with the chain 3 and the trolley 1, can save cost, avoid accidents in construction operation, and be more convenient for transportation.

[0035] In the present embodiment, as can be seen from the above, the limiting member 11 is arranged on the side of the trolley 1. The bolt 2 can be inserted through the limiting member 11 and the trolley 1 for installation. The bolt 2 can be limited by the limiting member 11 in the pulling-out direction when the bolt 2 is pulled out of the trolley 1, so that the movement of the bolt 2 in the pulling-out direction is limited, and the bolt 2 is limited by the limiting member 11.

[0036] It should be understood that, as shown in the prior art, Figure 3As shown, the bolt 2 is divided into a transverse section 20 and a curved section 21, and one end of the transverse section 20 and one end of the curved section 21 are fixedly connected.

[0037] It can also be understood that the essence of the embodiment is that the transverse section 20 is inserted and installed with the frame 1 while passing through the limiting piece 11, and then the curved section 21 is held to drive the transverse section 20 to move in the pulling-out direction, so that the transverse section 20 and the frame 1 are disengaged from the inserted and installed state.

[0038] In the embodiment, as can be seen from the above, the bolt 2 can be inserted and installed with the frame 1 while passing through the limiting piece 11.

[0039] Therefore, in the embodiment, as shown in Figure 2 and Figure 3 , one side of the limiting piece 11 is provided with a limiting hole 110. The transverse section 20 can be inserted and installed with the frame 1 through the limiting hole 110. The transverse section 20 is limitedly matched with the limiting piece 11 by the limiting part 23 which is larger in size than the limiting hole 110.

[0040] It can be understood that in order to achieve the above function, the main structure is that the transverse section 20 can be limitedly matched with the limiting piece 11 through the limiting hole 110 in the pulling-out direction. However, there are many specific structure setting modes for the transverse section 20 to be limitedly matched with the limiting piece 11 through the limiting hole 110, including but not limited to the following two modes.

[0041] Mode one: as shown in Figure 8 , the transverse section 20 includes a first shaft section 200 and a second shaft section 201. The first shaft section 200 is used for insertion and installation with the frame 1, and the second shaft section 201 is used for sliding fit with the limiting hole 110; the first shaft section 200 can be limitedly matched with the limiting piece 11 through the limiting hole 110 in the pulling-out direction along with the second shaft section 201.

[0042] Mode two: the outer side of the transverse section 20 is provided with a limiting column 22 for limiting insertion and installation with the frame 1 in the radial direction. The limiting column 22 can be used as the limiting part 23 of the transverse section 20 to be limitedly matched with the limiting hole 110.

[0043] It should be known that the above two setting modes can meet the needs of the present application, and those skilled in the art can choose according to actual needs; in the embodiment, the above-mentioned mode two is preferably adopted.

[0044] It can be understood that, as shown in Figure 8As shown, the limiting principle of the first mode is that the transverse section 20 is divided into a first shaft section 200 and a second shaft section 201, one end of the first shaft section 200 is fixedly connected with one end of the second shaft section 201, and the second shaft section 201 is fixedly connected with the curved section 21 at an end away from the first shaft section 200 to form the plug 2. The plug 2 passes through the limiting hole 110 and the frame 1 to be inserted, and then the limiting column 22 provided on the first shaft section 200 is clamped with the frame 1. By holding the curved section 21 and pulling it out in the pulling direction, the first shaft section 200 cannot pass through the limiting hole 110, and then abuts against the limiting piece 11 to limit the plug 2. It should be noted that the necessary condition for the first mode is that the diameter of the first shaft section 200 must be greater than the diameter of the second shaft section 201 and the limiting hole 110.

[0045] It should be known that, as Figures 4 to 6 As shown, the limiting principle of the second mode is that the limiting column 22 is provided on the outer side of the transverse section 20. The limiting column 22 can be limited by abutting against the limiting piece 11 along the pulling direction of the transverse section 20 passing through the limiting hole 110. Specifically, the frame 1 is provided with a plurality of insertion holes 120, and the axes of the plurality of insertion holes 120 and the limiting hole 110 are located on the same horizontal line. The transverse section 20 can pass through the limiting hole 110 and the plurality of insertion holes 120 to be inserted with the frame 1. The frame 1 is provided with a disengagement hole 10 on the side close to the limiting piece 11, and the disengagement hole 10 intersects with the insertion hole 120. The plug 2 can pass through the disengagement hole 10 to pull out the frame 1 by the limiting piece 11, and be limited by abutting against the limiting piece 11 by the limiting column 22. At the same time, the disengagement hole 10 is arranged below the insertion hole 120, and the positions of the limiting column 22 and the disengagement hole 10 do not correspond. The plug 2 can be pulled out after rotating so that the positions of the limiting column 22 and the disengagement hole 10 correspond.

[0046] It should also be known that the opening size of the disengagement hole 10 can be greater than or equal to the size of the limiting column 22. However, the opening size of the disengagement hole 10 cannot be less than the size of the limiting column 22.

[0047] It should also be known that the installation mode of the plug 2 is particularly important in the embodiment. The plug 2 must be replaced after being used for a certain period of time, so the installation mode should be convenient and reliable to avoid safety hazards during high-altitude operation.

[0048] Therefore, in the embodiment, there are various specific structural modes for the installation between the plug 2 and the frame 1, including but not limited to the following two modes.

[0049] The first mode: the limiting piece 11 passes through the limiting hole 110 from the inside to the outside of the limiting piece 11 through the bending section 21, and then the limiting piece 11 carrying the installed limiting piece 11 is fixedly installed on the frame 1.

[0050] The second mode: the limiting piece 11 is provided with a mounting hole 111 on one side of the limiting hole 110; the bolt 2 can pass through the mounting hole 111 through the limiting column 22 after the limiting piece 11 is fixedly installed on the frame 1 for installation. Wherein, the limiting column 22 is arranged in a dislocation manner with the mounting hole 111 in the pulling-out direction when the bolt 2 is in a natural state.

[0051] It should be understood that the above two setting modes can meet the needs of the present application, and those skilled in the art can choose according to actual needs; the second mode is preferred in the embodiment.

[0052] It can be understood that the working principle of the first mode is that the tail end of the transverse section 20 is fixedly connected with the bending section 21, and the transverse section 20 can pass through the limiting hole 110 from the inside of the limiting piece 11 through the bending section 21, so as to be inserted with the limiting piece 11, and then the limiting piece 11 carries the bolt 2 and the frame 1 for fixed installation.

[0053] The working principle of the second mode is that, as shown in Figure 9 , the limiting piece 11 is provided with a mounting hole 111 on one side of the limiting hole 110, and the mounting hole 111 intersects with the limiting hole 110. The transverse section 20 can be rotated around its own axis to make the limiting column 22 and the mounting hole 111 positionally correspond, and then pass through the mounting hole 111 and the limiting hole 110, and then be inserted and installed with the frame 1.

[0054] It can also be understood that the installation mode of the second mode is more convenient, and the reliability is not inferior to the first mode. At the same time, the second mode is more convenient for dismounting the bolt 2, so as to replace the bolt 2 after a long period of use in the future.

[0055] In the embodiment, the distance from the limiting hole 110 to the frame 1 is less than the distance from the limiting part 23 on the transverse section 20 to the top end of the transverse section 20, so that when the limiting part 23 abuts against the limiting piece 11, the top end of the transverse section 20 is located in the frame 1.

[0056] Therefore, in the embodiment, as shown in Figure 3 and Figure 7 , the frame 1 is also provided with a hollow part 12, and the bolt 2 is pulled out, and the top end of the transverse section 20 still has a small part in the hollow part 12 after the limiting column 22 abuts against the limiting piece 11, and the main purpose of such setting mode is that when the staff needs to insert and engage the bolt 2 with the frame 1 again, it can be quickly connected with the through hole 120.

[0057] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A wire-laying pulley pin installation structure, characterized in that: include: A frame and a latch; a limit piece is provided on the side of the frame; the latch is suitable for passing through the limit piece and the frame for plug-in installation; The latch is adapted to abut against the limiting member along a pulling-out direction to limit the position after being pulled out of the vehicle frame.

2. A wire-laying pulley latch mounting structure according to claim 1, characterized in that: The latch includes a transverse section and a curved section; the latch is suitable for being limitedly matched with the transverse section and the limiting member.

3. A wire-laying pulley pin installation structure according to claim 2, characterized in that: A limiting hole is provided on one side of the limiting member; the transverse section is suitable for passing through the limiting hole and being plugged into the frame; the transverse section is limitedly matched with the limiting member by providing a limiting portion whose size is larger than the limiting hole.

4. A wire-laying pulley latch mounting structure according to claim 3, characterized in that: The transverse section includes a first shaft section and a second shaft section; the first shaft section is used to be plugged into the vehicle frame, and the second shaft section is used to slide with the limiting hole; the diameter of the first shaft section is larger than the diameter of the second shaft section, so that the first shaft section acts as the limiting part and offsets the limiting hole.

5. The pay-out pulley pin installation structure according to claim 3, characterized in that: A limiting column for inserting and limiting the position with the frame is radially arranged on the outer side of the transverse section; the limiting column is suitable for serving as the limiting portion of the transverse section and limiting against the limiting hole.

6. The pay-out pulley pin installation structure according to claim 3, characterized in that: The distance between the limiting hole and the vehicle frame is smaller than the distance between the limiting portion on the transverse segment and the top end of the transverse segment, so that when the limiting portion and the limiting member abut against each other, the top end of the transverse segment is located inside the vehicle frame.

7. A wire-laying pulley latch mounting structure according to claim 4 or 5, characterized in that: The limiting member passes through the limiting hole from the inner side of the limiting member to the outside through the bending section, and then the limiting member carrying the installed limiting member is fixedly installed on the vehicle frame.

8. The pay-out pulley pin installation structure according to claim 5, characterized in that: The limiting member is provided with a mounting hole on one side thereof; the latch is adapted to be installed by passing through the mounting hole through the limiting column after the limiting member is fixedly mounted on the vehicle frame; wherein, the limiting column is offset from the mounting hole along the pulling-out direction when the latch is in a natural state.

Images