CN219932872U

CN219932872U - Chain tensioner

Info

Publication number: CN219932872U
Application number: CN202320981946.5U
Authority: CN
Inventors: 张成伟
Original assignee: Ningbo Xinxu Metal Products Co ltd
Current assignee: Ningbo Xinxu Metal Products Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-10-31
Anticipated expiration: 2033-04-24

Abstract

The utility model relates to the technical field of chain tensioners and discloses a chain tensioner which comprises a mounting frame, wherein a movable seat is arranged in the middle of the inner top wall of the mounting frame, a threaded rod is movably arranged at the bottom of the movable seat, a thread sleeve is arranged in the middle of the threaded rod in a threaded manner, a supporting rod is arranged on the right side of the thread sleeve, a movable hole is formed in the right side of the mounting frame, and a movable mechanism is arranged on the right side of the supporting rod through the movable hole. According to the utility model, the threaded rod is driven to rotate by rotating the adjusting block, so that the threaded rod and the threaded sleeve are in threaded transmission, the threaded sleeve can be prevented from rotating along with the threaded rod by sliding the limiting block in the limiting groove, and the supporting rod can be driven to slide up and down in the movable hole, so that the position of the tensioning wheel is conveniently adjusted, the tensioning wheel can support the chain, the chain can be tensioned, the loose chain can be tensioned, and the tightness degree of the chain can be controlled by controlling the height position of the tensioning wheel.

Description

Chain tensioner

Technical Field

The utility model relates to the technical field of chain tensioners, in particular to a chain tensioner.

Background

The chain is generally a metal link or ring and is used for mechanical transmission and traction. Chains for mechanical lifting are used to obstruct traffic channels (e.g. in streets, rivers or estuary entrances).

When the chain is used, the chain needs to be tensioned, the tightness of the chain is inconvenient to adjust according to the use requirement of the chain when the existing tensioner is used, so that the normal use of the chain is affected, the chain tensioner device disclosed in Chinese patent publication No. CN215144418U is inconvenient to support and guide the chain when the chain tensioner is used, and in actual use of the chain, the tightness of the chain is inconvenient to adjust, so that the chain is easy to fall off when sliding, and the problem raised above is solved by providing the chain tensioner according to the above conditions.

Disclosure of Invention

The utility model aims to solve the defects existing in the prior art, such as: the existing chain tensioner is inconvenient to support and guide a chain when in use, and in actual use of the chain, the tightness degree of the chain is inconvenient to adjust, so that the chain is easy to fall off when sliding, and the chain tensioner is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a chain tensioner, includes the mounting bracket, the mid-mounting of roof in the mounting bracket has the movable seat, the bottom movable mounting of movable seat has the threaded rod, the thread bush is installed to the middle part screw thread of threaded rod, the bracing piece is installed on the right side of thread bush, the movable hole has been seted up on the right side of mounting bracket, movable mechanism is installed to the right side of bracing piece passes the movable hole, the take-up pulley is installed on the right side of movable mechanism, the slide hole has been vertically seted up to the rear side of mounting bracket, the mid-mounting at the thread bush back has fixed establishment, fixed establishment activity alternates in the inside of slide hole, the mounting panel is all installed in the left side of both sides around the mounting bracket, the fixed orifices has all been seted up to the upper and lower both sides of mounting panel.

Preferably, the fixing mechanism comprises an adjusting sleeve arranged in the middle of the rear side of the threaded sleeve, one side, far away from the threaded sleeve, of the adjusting sleeve is movably inserted into the sliding hole, an adjusting rod is arranged in the internal thread of the adjusting sleeve, and one end, far away from the adjusting sleeve, of the adjusting rod penetrates through the sliding hole to be provided with a fixing block.

Preferably, the movable mechanism comprises a movable frame arranged on the right side of the supporting rod, a movable bearing is arranged in the movable frame, a movable rod is arranged in the movable bearing, and the right side of the movable rod is connected with the tensioning wheel.

Preferably, the left inner wall of the mounting frame is vertically provided with a limiting groove, a limiting block is arranged in the middle of the left side of the threaded sleeve, and the left side of the limiting block is movably inserted into the limiting groove.

Preferably, limiting rings are arranged on two sides of the tensioning wheel.

Preferably, the middle part movable mounting of mounting bracket bottom has the regulating block, the bottom of threaded rod passes the mounting bracket and is connected with the regulating block.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the threaded rod is driven to rotate by rotating the adjusting block, so that the threaded rod and the threaded sleeve are in threaded transmission, the threaded sleeve can be prevented from rotating along with the threaded rod by sliding the limiting block in the limiting groove, and the supporting rod can be driven to slide up and down in the movable hole, so that the position of the tensioning wheel is conveniently adjusted, the tensioning wheel can support the chain, the chain can be tensioned, the loose chain can be tensioned, and the tightness degree of the chain can be controlled by controlling the height position of the tensioning wheel.

(2) According to the utility model, the chain on the tensioning wheel can be blocked through the limiting ring, the chain is prevented from sliding off the tensioning wheel, the tensioning wheel can be stably supported through the movable frame and the movable bearing, the tensioning wheel can freely rotate, the adjusting sleeve can slide in the sliding hole through the up-and-down movement of the threaded sleeve, the adjusting rod is driven to rotate through the rotating fixing block, the adjusting rod is arranged in the adjusting sleeve through threads, the fixing block is pressed on the outer side of the mounting frame, the threaded sleeve can be fixed, and the situation that the threaded sleeve moves after adjustment is prevented.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present utility model;

FIG. 2 is a schematic view of the right side surface of the present utility model;

FIG. 3 is a schematic diagram of a first embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure: 1. a mounting frame; 2. a limit groove; 3. a limiting block; 4. a thread sleeve; 5. a threaded rod; 6. a movable seat; 7. a movable hole; 8. a movable mechanism; 81. a movable frame; 82. a movable bearing; 83. a movable rod; 9. a fixing mechanism; 91. an adjusting sleeve; 92. an adjusting rod; 93. a fixed block; 10. a support rod; 11. a tensioning wheel; 12. a limiting ring; 13. an adjusting block; 14. a mounting plate; 15. a fixing hole; 16. and a slide hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, a chain tensioner comprises a mounting frame 1, a movable seat 6 is mounted in the middle of the inner top wall of the mounting frame 1, a threaded rod 5 is movably mounted at the bottom of the movable seat 6, an adjusting block 13 is movably mounted at the middle of the bottom end of the mounting frame 1, the bottom end of the threaded rod 5 penetrates through the mounting frame 1 to be connected with the adjusting block 13, a thread bush 4 is mounted at the middle thread of the threaded rod 5, a limit groove 2 is vertically formed in the left inner wall of the mounting frame 1, a limit block 3 is mounted at the middle of the left side of the thread bush 4, the left side of the limit block 3 is movably inserted in the limit groove 2, the limit block 3 slides in the limit groove 2 to prevent the thread bush 4 from rotating along with the threaded rod 5, a support rod 10 is mounted at the right side of the thread bush 4, a movable hole 7 is formed at the right side of the mounting frame 1, a movable mechanism 8 is mounted at the right side of the support rod 10 through the movable hole 7, the right side of the movable mechanism 8 is provided with a tensioning wheel 11, both sides of the tensioning wheel 11 are provided with limiting rings 12, a chain on the tensioning wheel 11 can be blocked through the limiting rings 12, the chain is prevented from sliding off the tensioning wheel 11, the threaded rod 5 is driven to rotate by rotating the adjusting block 13, the threaded rod 5 and the threaded sleeve 4 are in threaded transmission, the supporting rod 10 can be driven to slide up and down in the movable hole 7, the position of the tensioning wheel 11 is convenient to adjust, the tensioning wheel 11 can support the chain, the chain is tensioned, the loose chain is tensioned, the rear side of the mounting frame 1 is vertically provided with a sliding hole 16, the middle part of the back surface of the threaded sleeve 4 is provided with a fixing mechanism 9, the fixing mechanism 9 is movably inserted into the sliding hole 16, the tightness degree of the chain can be controlled by controlling the height position of the tensioning wheel 11, the mounting panel 14 is all installed in the left side of both sides around the mounting bracket 1, and fixed orifices 15 have all been seted up to the upper and lower both sides of mounting panel 14, through placing mounting bracket 1 in the position that needs to be taut to the chain, alternate the bolt in the inside of fixed orifices 15, install mounting panel 14 in appointed position steadily.

Embodiment one:

as shown in fig. 3, the fixing mechanism 9 includes an adjusting sleeve 91 installed in the middle of the rear side of the threaded sleeve 4, one side of the adjusting sleeve 91, far away from the threaded sleeve 4, is movably inserted into the sliding hole 16, an adjusting rod 92 is installed in the internal thread of the adjusting sleeve 91, one end, far away from the adjusting sleeve 91, of the adjusting rod 92 penetrates through the sliding hole 16 to be provided with a fixing block 93, the adjusting sleeve 91 can slide along with the sliding hole 16 through the up-down movement of the threaded sleeve 4, the adjusting rod 92 is driven to rotate through the rotating fixing block 93, the adjusting rod 92 is installed in the adjusting sleeve 91 in a threaded manner, the fixing block 93 is tightly pressed on the outer side of the mounting frame 1, the threaded sleeve 4 can be fixed, and the situation that the threaded sleeve 4 moves after adjustment is prevented.

Embodiment two:

as shown in fig. 4, the movable mechanism 8 includes a movable frame 81 mounted on the right side of the support bar 10, a movable bearing 82 is mounted in the movable frame 81, a movable rod 83 is mounted in the movable bearing 82, the right side of the movable rod 83 is connected with the tensioning wheel 11, the tensioning wheel 11 can be stably supported through the movable frame 81 and the movable bearing 82, and the tensioning wheel 11 can freely rotate.

According to the device, when a user uses the device, the mounting frame 1 is placed at a position where a chain needs to be tensioned, bolts are inserted into the fixing holes 15, the mounting plate 14 is stably mounted at a designated position, one end of the chain is sleeved on the outer side of the tensioning wheel 11, the chain is inserted between the two limiting rings 12, the rotation adjusting block 13 drives the threaded rod 5 to rotate, the threaded rod 5 and the threaded sleeve 4 are in threaded transmission, the limiting block 3 slides in the limiting groove 2, the threaded sleeve 4 can be prevented from rotating along with the threaded rod 5, the supporting rod 10 can be driven to slide up and down in the movable hole 7, the position of the tensioning wheel 11 is conveniently adjusted, the tensioning wheel 11 can support the chain, the chain is tensioned, the tensioning wheel 11 drives the movable rod 83 to stably rotate in the movable bearing 82 when the chain is pulled, the adjusting sleeve 91 slides along with the threaded sleeve 4 in the sliding hole 16, the adjusting block 93 drives the adjusting rod 92 to rotate, the adjusting rod 92 is in the adjusting sleeve 91, and the fixing block 93 is pressed on the outer side of the tensioning wheel 1, and the outer side 4 of the tensioning wheel can be fixed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a chain tensioner, includes mounting bracket (1), its characterized in that, mid-mounting of roof in mounting bracket (1) has movable seat (6), the bottom movable mounting of movable seat (6) has threaded rod (5), threaded rod (5) mid-screw thread installs thread bush (4), bracing piece (10) are installed on the right side of thread bush (4), movable hole (7) have been seted up on the right side of mounting bracket (1), movable mechanism (8) are installed in the right side of bracing piece (10) passing movable hole (7), take-up pulley (11) are installed on the right side of movable mechanism (8), slide hole (16) have been vertically seted up on the rear side of mounting bracket (1), mid-mounting at the thread bush (4) back has fixed establishment (9), fixed establishment (9) activity alternate in the inside of slide hole (16), mounting panel (14) are all installed on the left side of both sides around mounting bracket (1), fixed orifices (15) are all seted up on both sides about mounting panel (14).

2. The chain tensioner according to claim 1, wherein the fixing mechanism (9) comprises an adjusting sleeve (91) installed in the middle of the rear side of the threaded sleeve (4), one side, far away from the threaded sleeve (4), of the adjusting sleeve (91) is movably inserted into the sliding hole (16), an adjusting rod (92) is installed in the internal thread of the adjusting sleeve (91), and one end, far away from the adjusting sleeve (91), of the adjusting rod (92) penetrates through the sliding hole (16) to be provided with a fixing block (93).

3. A chain tensioner according to claim 1, wherein the movable mechanism (8) comprises a movable frame (81) mounted on the right side of the supporting bar (10), a movable bearing (82) is mounted in the movable frame (81), a movable bar (83) is mounted in the movable bearing (82), and the right side of the movable bar (83) is connected with the tensioning wheel (11).

4. The chain tensioner according to claim 1, wherein the limit groove (2) is vertically formed in the left inner wall of the mounting frame (1), the limit block (3) is mounted in the middle of the left side of the threaded sleeve (4), and the left side of the limit block (3) is movably inserted into the limit groove (2).

5. A chain tensioner according to claim 1, characterized in that the limiting rings (12) are mounted on both sides of the tensioning wheel (11).

6. The chain tensioner according to claim 1, wherein an adjusting block (13) is movably mounted in the middle of the bottom end of the mounting frame (1), and the bottom end of the threaded rod (5) penetrates through the mounting frame (1) to be connected with the adjusting block (13).