Automobile tensioner with pawl locking mechanism

Abstract

The utility model discloses an automobile tensioner with a pawl locking mechanism, and relates to the technical field of tensioners. Comprising a main body shell, a connecting base is arranged at one end of the main body shell, a plunger is arranged in the connecting base, a tooth groove is formed in one side of the plunger, a pawl meshed with the tooth groove is arranged in the connecting base, a plug pin used for locking the pawl is arranged on one side of the connecting base, and a connecting arm is arranged at one end of the main body shell; and one end of the connecting seat extends to one side of the connecting arm. The locking function is achieved through meshing of a pawl and a plunger tooth groove, the bolt mechanism can manually lock the position of the pawl to ensure that the tension force is stable, a pawl spring enables the pawl to automatically reset and keep continuous meshing, the linkage design of a limiting plate and a bolt facilitates rapid unlocking and overhauling, and the installation process is simplified through a T-shaped guide groove and a buckle structure. The belt tensioning control device integrally achieves high-reliability and easy-to-maintain belt tensioning control, is simple and compact in structure, conforms to economic benefits and has wide application prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tensioner, concretely is a kind of automobile tensioner with ratchet pawl locking mechanism. BACKGROUND

[0002] Tensioner is the key device in belt, chain drive system, avoids belt slip, gear skipping or chain slackening by dynamic regulation tension, ensure the efficient stability of power transmission.Its core value is reflected in: anti-slip: maintain the meshing state of belt and gear, reduce power loss;Anti-wear: avoid abnormal wear of chain wheel and chain caused by too loose or too tight;Safety guarantee: prevent mechanical failure caused by chain drop or synchronous belt rupture.

[0003] The existing tensioner generally has the problems of easy wear of locking mechanism leading to tension attenuation and complex manual adjustment operation, and the installation structure of part of products is complicated, which increases maintenance cost, affects the long-term stability of belt drive system and has undesirable use effect. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of automobile tensioner with ratchet pawl locking mechanism to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile tensioner with ratchet pawl locking mechanism, including main body shell, the one end of the main body shell is provided with connecting seat, the inside of the connecting seat is provided with plunger, the side of the plunger is provided with tooth slot, the inside of the connecting seat is provided with ratchet pawl engaged with tooth slot, the side of the connecting seat is provided with the latch for locking ratchet pawl.

[0006] Further, the one end of the main body shell is provided with connecting arm, the one end of the connecting seat extends to the side of connecting arm, the inside of the connecting seat and connecting arm is jointly provided with connecting shaft.

[0007] Further, the bottom of the connecting seat is provided with movable slot, the inside of the ratchet pawl is fixedly provided with fixed shaft, the fixed shaft is rotationally arranged in the inside of movable slot.

[0008] Further, the one end of the fixed shaft extends to the side of connecting seat and is fixedly provided with limit plate.

[0009] Further, the side of the connecting seat is movably inserted with latch, the inside of the one end of the limit plate away from the fixed shaft is movably sleeved with latch.

[0010] Further, the inside of the movable slot is provided with ratchet spring, the bottom end of the ratchet spring is connected with the top of the one end of ratchet pawl away from tooth slot.

[0011] Further, the inside of the plunger is provided with a plunger spring, the bottom of the plunger extends to below the connecting seat and is provided with a movable piece, the inside of the movable piece is provided with an iron sheet which is sleeved with the bottom of the plunger.

[0012] Further, one side of the movable piece is provided with a plurality of limiting holes, the top of the connecting seat is jointly clamped with the inside of one of the limiting holes with a limiting spring.

[0013] Further, the plastic seat is further provided, the bottom of the plastic seat is provided with a guide groove and buckles on both sides of the guide groove.

[0014] Further, the one end of the main body shell away from the connecting arm is provided with a guide block which is movably sleeved with the guide groove, and the one end of the main body shell is provided with a clamping block which is clamped with the buckle below the guide block.

[0015] Compared with the prior art, the automobile tensioner with the pawl locking mechanism has the following beneficial effects:

[0016] The automobile tensioner with the pawl locking mechanism realizes the locking function through the engagement of the pawl and the plunger tooth groove, the bolt mechanism can manually lock the pawl position to ensure the stability of the tensioning force, the pawl spring makes the pawl automatically reset to maintain continuous engagement, the limiting plate and the bolt are designed in linkage to facilitate quick unlocking and maintenance, the T-shaped guide groove and the buckle structure simplify the installation process, and the whole realizes the high-reliability, easy-maintenance belt tensioning control, the structure is simple and compact, conforms to the economic benefits, and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural side view of the utility model;

[0019] Figure 3 It is an exploded view of the structure of the utility model;

[0020] Figure 4 It is a connecting seat structure sectional view of the utility model;

[0021] Figure 5 It is a bolt structure sectional view of the utility model.

[0022] In the figure: 1, main body shell; 11, connecting arm; 12, connecting shaft; 13, guide block; 14, clamping block; 2, connecting seat; 21, plunger; 22, plunger spring; 23, tooth groove; 24, movable slot; 25, pawl; 26, pawl spring; 27, fixed shaft; 271, limiting plate; 28, bolt; 3, movable piece; 31, iron sheet; 32, limiting hole; 4, plastic seat; 41, guide groove; 412, buckle; 5, limiting spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-5 The utility model discloses a kind of automobile tensioner of pawl locking mechanism, including main body shell 1, the one end of main body shell 1 is provided with connecting seat 2, the inside of connecting seat 2 is provided with plunger 21, the side of plunger 21 is provided with tooth groove 23, the inside of connecting seat 2 is provided with pawl 25 engaged with tooth groove 23, the side of connecting seat 2 is provided with bolt 28 for locking pawl 25.

[0025] Specifically, the one end of the main body shell 1 is provided with a connecting arm 11, and the one end of the connecting seat 2 extends to one side of the connecting arm 11. The connecting seat 2 and the connecting arm 11 are internally and collectively provided with a connecting shaft 12.

[0026] In the present embodiment, the connecting arm 11 provides a connecting position for mounting the connecting seat 2, and the connecting shaft 12 is used to connect the main body shell 1 and the connecting arm 11. The connecting arm 11 and the connecting seat 2 are further provided with a coaxial and opposite hole position inside. The hole position is located on one side of the connecting shaft 12. When a shaft rod is installed inside the hole position, the shaft rod can be locked with the connecting seat 2 in cooperation with the connecting shaft 12.

[0027] Specifically, the bottom of the connecting seat 2 is provided with a movable slot 24, the inside of the pawl 25 is fixedly provided with a fixed shaft 27, the fixed shaft 27 is rotatably arranged inside the movable slot 24, one end of the fixed shaft 27 extends to one side of the connecting seat 2 and is fixedly provided with a limiting plate 271, and the connecting seat 2 is movably inserted with a bolt 28 on one side. The inside of the end of the limiting plate 271 away from the fixed shaft 27 is movably sleeved with the bolt 28.

[0028] In the embodiment, the latch 28 is pulled out, the pawl 25 is deflected to drive the fixed shaft 27 to rotate synchronously, the fixed shaft 27 drives the limiting plate 271 to deflect synchronously, when the pawl 25 needs to be limited, the limiting plate 271 is turned over to the hole position for installing the latch 28, the latch 28 is inserted into one side of the connecting seat 2 after passing through the limiting plate 271, and the locking of the pawl 25 is completed.

[0029] Specifically, the inside of the movable slot 24 is provided with the pawl spring 26, and the bottom end of the pawl spring 26 is connected with the top of the end of the pawl 25 away from the tooth groove 23.

[0030] In the embodiment, the pawl spring 26 is used to drive the pawl 25 to reset, and the pawl 25 is deflected to avoid the tooth groove 23 when the plunger 21 moves up and down to abut against the pawl 25 through the tooth groove 23, and the pawl spring 26 is stretched or compressed.

[0031] Specifically, the inside of the plunger 21 is provided with the plunger spring 22, the bottom of the plunger 21 extends to the lower side of the connecting seat 2 and is provided with the movable piece 3, the inside of the movable piece 3 is provided with the iron sheet 31 sleeved with the bottom of the plunger 21, one side of the movable piece 3 is provided with a plurality of limiting holes 32, and the top of the connecting seat 2 is jointly clamped with the inside of one of the limiting holes 32 with the limiting spring 5.

[0032] In the embodiment, the limiting spring 5 hooks the top of the connecting seat 2 and the limiting hole 32 at two ends, and one end of the limiting spring 5 can move slightly in the inside of the limiting hole 32.

[0033] Specifically, the plastic seat 4 is further included, the bottom of the plastic seat 4 is provided with the guide groove 41 and the buckle 412 located on both sides of the guide groove 41, the end of the main body shell 1 away from the connecting arm 11 is provided with the guide block 13 movably sleeved with the guide groove 41, and one end of the main body shell 1 is provided with the clamping block 14 located below the guide block 13 and clamped with the buckle 412.

[0034] In the embodiment, the guide groove 41 and the guide block 13 are both T-shaped, the guide groove 41 is connected with the guide block 13, the stability of the plastic seat 4 is ensured, the buckle 412 is clamped with the clamping block 14, and the plastic seat 4 is fixed.

[0035] In summary, the automobile tensioner with the pawl locking mechanism, through the engagement of the pawl 25 and the tooth groove 23 of the plunger 21, realizes the locking function, the bolt 28 mechanism can manually lock the pawl 25 position to ensure the stability of the tensioning force, the pawl spring 26 makes the pawl 25 automatically reset to maintain continuous engagement, the limiting plate 271 and the bolt 28 are linked and designed to facilitate quick unlocking and maintenance, the T-shaped guide groove 41 and the buckle 412 structure simplify the installation process, and the whole realizes the high reliability, easy maintenance, compact structure, economic benefit and wide application prospect of the belt tensioning control.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A car tensioner with a pawl locking mechanism, comprising a main body shell (1), characterized in that: One end of the main body shell (1) is provided with a connecting seat (2), the inside of the connecting seat (2) is provided with a plunger (21), one side of the plunger (21) is provided with a toothed groove (23), the inside of the connecting seat (2) is provided with a pawl (25) that meshes with the toothed groove (23), and one side of the connecting seat (2) is provided with a pin (28) for locking the pawl (25).

2. The automotive tensioner with a pawl locking mechanism according to claim 1, characterized in that: One end of the main body shell (1) is provided with a connecting arm (11), and one end of the connecting seat (2) extends to one side of the connecting arm (11). The connecting seat (2) and the connecting arm (11) are both provided with a connecting shaft (12).

3. The automotive tensioner with a pawl locking mechanism according to claim 1, characterized in that: The bottom of the connecting seat (2) is provided with a movable groove (24), and a fixed shaft (27) is fixedly provided inside the pawl (25). The fixed shaft (27) is rotatably disposed inside the movable groove (24).

4. The automotive tensioner with a pawl locking mechanism according to claim 3, characterized in that: One end of the fixed shaft (27) extends to one side of the connecting seat (2) and is fixedly provided with a limiting plate (271).

5. A car tensioner with a pawl locking mechanism according to claim 4, characterized in that: A pin (28) is movably inserted into one side of the connecting seat (2), and the end of the limiting plate (271) away from the fixed shaft (27) is movably sleeved with the pin (28).

6. A car tensioner with a pawl locking mechanism according to claim 3, characterized in that: The movable groove (24) is provided with a pawl spring (26), the bottom end of which is connected to the top of the end of the pawl (25) away from the tooth groove (23).

7. A car tensioner with a pawl locking mechanism according to claim 1, characterized in that: The plunger (21) is provided with a plunger spring (22) inside. The bottom of the plunger (21) extends to the bottom of the connecting seat (2) and is provided with a movable part (3). The movable part (3) is provided with an iron plate (31) that fits into the bottom of the plunger (21).

8. A car tensioner with a pawl locking mechanism according to claim 7, characterized in that: The movable part (3) has several limiting holes (32) on one side, and the top of the connecting seat (2) and the interior of one of the limiting holes (32) are engaged with a limiting spring (5).

9. A car tensioner with a pawl locking mechanism according to claim 1, characterized in that: It also includes a plastic base (4), the bottom of which is provided with a guide groove (41) and buckles (412) located on both sides of the guide groove (41).

10. A car tensioner with a pawl locking mechanism according to claim 1, characterized in that: The main body shell (1) is provided with a guide block (13) that is movably sleeved with the guide groove (41) at one end away from the connecting arm (11), and a snap block (14) is provided at one end of the main body shell (1) that is located below the guide block (13) and snapped with the snap fastener (412).

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