A matching coupling and connecting rod

Abstract

The utility model discloses a matching coupling and connecting rod, comprising a coupling body, a connecting rod body is arranged inside the coupling body, a connecting plate is slidably arranged inside the coupling body, and a locking block is fixedly connected to one side of the connecting plate, a movable rod is fixedly arranged on one side of the connecting plate, and the end of the movable rod passes through the coupling body, and the connecting spring is compressed by manually toggling the movable plate, and the locking block on the connecting plate is driven to move by the movable rod connected to the movable plate, so that the position of the locking block inside the coupling body can be adjusted. In this way, not only can the clamping limit be adjusted according to the actual thickness of connecting rod bodies of different specifications, but also it is convenient to disassemble the connecting rod body and the coupling body in the later stage, which not only will not affect the normal operation of the connecting rod body, but also ensures the connection between the two connecting rod bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling and connecting rod connection, in particular to a matching coupling and connecting rod. Background Art

[0002] A coupling is a device that connects two shafts or a shaft and a rotating part, which rotates together during the transmission of motion and power and does not disengage under normal circumstances. Therefore, a coupling is generally used to firmly connect the driving shaft and the driven shaft in different mechanisms so that they rotate together and transmit motion and torque, ensuring that the connecting rod can be driven by the motor to rotate normally.

[0003] The existing patent announcement number is CN 212360533 U, which is a coupling and a coupling for connecting a drill pipe. The coupling includes a first shaft body and a second shaft body that are connected to each other. One of the first shaft body and the second shaft body has an insertion section, and the other has an accommodating cavity for accommodating the insertion section. When the first shaft body and the second shaft body are in a connected state, the insertion section is inserted into the accommodating cavity to cooperate in transmitting torque. A connecting component is provided between the first shaft body and the second shaft body to connect and fix the first shaft body and the second shaft body.

[0004] However, the existing patent text only mentions the content of avoiding the situation where the existing threaded connection structure cannot be used after the thread teeth are worn. What is not taken into consideration is that the caliber of common couplings is fixed, and usually only connecting rods of the same specifications can be used for matching connections, which has limitations in use. Therefore, there is a need for a coupling that can be suitable for connecting rods of various specifications and can be matched with them for use, thereby increasing the scope of use of this coupling. Utility Model Content

[0005] The purpose of the utility model is to provide a matching coupling and a connecting rod to solve the above-mentioned problems.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A matching coupling and connecting rod, comprising a coupling body, a plurality of movable plates fixedly arranged in a circular array on the outside of the coupling body, fixed rods symmetrically slidably arranged on the movable plates, one end of the fixed rods passing through the coupling body, a connecting plate arranged at one end of two of the fixed rods located inside the coupling body, and a locking block arranged on the side of the connecting plate.

[0008] As a further solution of the utility model: a sleeve is rotatably provided on the side of the movable plate away from the coupling body, a top plate is provided on one end of the two fixed rods located outside the coupling body, a threaded rod is provided on the side of the top plate close to the movable plate, and the threaded rod is threadedly connected to the sleeve.

[0009] As a further solution of the utility model: a connecting spring is sleeved and arranged on the fixing rod between the movable plate and the top plate.

[0010] As a further solution of the utility model: the shape of the locking block is an "I" shape.

[0011] As a further solution of the utility model: a connecting rod, the connecting rod comprises: a connecting rod body, and the end of the connecting rod body is provided with a card slot in a ring array.

[0012] As a further solution of the utility model: the shape of the card slot is "T" shape.

[0013] Beneficial effects of the utility model:

[0014] (1) In the present invention, after the two connecting rod bodies are placed inside the coupling body, the sleeve is manually controlled to rotate on the movable plate, so that the sleeve and the threaded rod are threadedly rotated, driving the fixed rod to slide on the movable plate, and the connecting rod bodies are connected by the locking block, so that the connecting rod bodies are locked, ensuring that there will be no gap during the operation of the connecting rod bodies, resulting in the phenomenon of idling of one of the connecting rod bodies;

[0015] (2) In the utility model, a connecting rod body having a slot at one end is respectively placed into the interior of the coupling body, and the slot on the connecting rod body is aligned with the locking block on the connecting block. Thereafter, the position of the locking block is adjusted and the locking block is extended into the slot on the connecting rod body to complete the connection and locking work between the two connecting rod bodies, so that one locking block can enter into two docking slots to complete the locking of the connecting rod body, which not only does not affect the normal work of the connecting rod body, but also ensures the connection between the two connecting rod bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the connection structure of the connecting plate and the locking block in the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the local structure of the connecting rod in the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure of the sleeve and the threaded rod in the utility model.

[0021] In the figure: 1, coupling body; 2, connecting rod body; 21, slot; 3, movable plate; 31, fixed rod; 32, connecting plate; 33, locking block; 34, movable rod; 35, sleeve; 36, threaded rod; 37, top plate; 38, connecting spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1 , Figure 2 and Figure 4 As shown, the utility model is a matching coupling and connecting rod, including a coupling body 1, a movable rod 34 is arranged on the outside of the coupling body 1, a movable plate 3 is arranged on the end of the movable rod 34, a connecting rod body 2 is arranged inside the coupling body 1, a connecting plate 32 is slidably arranged inside the coupling body 1, and a locking block 33 is fixedly connected to one side of the connecting plate 32, and a fixing rod 31 is fixedly arranged on the other side of the connecting plate 32. After the two connecting rod bodies 2 are respectively placed into the coupling body 1, the position of the connecting plate 32 is then adjusted, so that the locking block 33 on the connecting plate 32 can clamp and lock the two connecting rod bodies 2, so as to avoid the appearance of a gap between the two connecting rod bodies 2 and affect normal work.

[0025] Specifically, the end of the movable rod 34 is fixedly connected to the movable plate 3, the fixed rod 31 is symmetrically arranged on the movable plate 3, and the end of the fixed rod 31 passes through the movable plate 3, a top plate 37 is arranged above the movable plate 3, and a connecting spring 38 is arranged between the top plate 37 and the movable plate 3. By controlling the fixed rod 31 to slide on the upper movable plate 3, the position of the locking block 33 on the connecting plate 32 is adjusted, and then the locking block 33 is used to limit and fix the connecting rod body 2.

[0026] More specifically, a sleeve 35 is rotatably connected to the movable plate 3, and a threaded rod 36 is threadedly connected inside the sleeve 35. The end of the threaded rod 36 is connected to the top plate 37. The sleeve 35 is manually controlled to rotate on the movable plate 3, so that the sleeve 35 and the threaded rod 36 can be threadedly rotated, which not only provides power for the fixed rod 31 to slide on the movable plate 3, but also can lock the position of the locking block 33 on the connecting plate 32 after adjusting the position of the locking block 33, thereby preventing the two connecting rod bodies 2 from separating.

[0027] Specific implementation method of this practical embodiment: after the two connecting rod bodies 2 are placed into the coupling body 1, the sleeve 35 is manually controlled to rotate on the movable plate 3, so that the sleeve 35 and the threaded rod 36 are threadedly rotated, driving the fixed rod 31 to slide on the movable plate 3, and the connecting rod bodies 2 are connected by the locking block 33, so that the connecting rod bodies 2 are locked to ensure that no gap will appear during the operation of the connecting rod bodies 2, causing one of the connecting rod bodies 2 to idle.

[0028] Embodiment 2

[0029] See also Figure 3 As shown, the connecting rod body 2 is symmetrically arranged on one side of the coupling body 1, and a slot 21 is opened on the connecting rod body 2. By placing the two connecting rod bodies 2 into the two sides of the coupling body 1 respectively, the slot 21 on the connecting rod body 2 is aligned with the locking block 33 on the connecting block, and then, by adjusting the position of the locking block 33, the locking block 33 is extended into the slot 21 on the connecting rod body 2 to complete the connection and locking work between the two connecting rod bodies 2.

[0030] Specifically, a circular array of the card slots 21 is arranged at the end of the connecting rod body 2, the card slots 21 are in the shape of a "T" shape, and the locking block 33 is in the shape of an "I" shape. By aligning the card slots 21 on the ends of the two connecting rod bodies 2, the card slots 21 on the two connecting rod bodies 2 are made to be in the shape of an "I", so that one locking block 33 can enter into the two docking card slots 21 to complete the locking of the connecting rod body 2, which not only does not affect the normal operation of the connecting rod body 2, but also ensures the connection between the two connecting rod bodies 2.

[0031] Specific implementation method of this practical embodiment: the connecting rod main body 2 with a slot 21 at one end is respectively placed into the interior of the coupling main body 1, and the slot 21 on the connecting rod main body 2 is aligned with the locking block 33 on the connecting block. After that, the position of the locking block 33 is adjusted, and the locking block 33 is extended into the slot 21 on the connecting rod main body 2 to complete the connection and locking work between the two connecting rod main bodies 2, so that one locking block 33 can enter the two docking slots 21 to complete the locking of the connecting rod main body 2, which not only does not affect the normal work of the connecting rod main body 2, but also ensures the connection between the two connecting rod main bodies 2.

[0032] The working principle of the utility model is as follows: after the two connecting rod bodies 2 are placed into the coupling body 1, the sleeve 35 is manually controlled to rotate on the movable plate 3, so that the sleeve 35 and the threaded rod 36 are threadedly rotated, driving the fixed rod 31 to slide on the movable plate 3, and the connecting rod bodies 2 are connected through the locking block 33, so that one locking block 33 can enter into the two docking slots 21 to complete the locking of the connecting rod bodies 2, which not only does not affect the normal operation of the connecting rod bodies 2, but also ensures the connection between the two connecting rod bodies 2.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A mating coupling, characterized in that: The invention comprises a coupling body (1), a plurality of movable plates (3) are fixedly arranged in a ring array on the outside of the coupling body (1), a fixed rod (31) is symmetrically slidably arranged on the movable plate (3), one end of the fixed rod (31) passes through the coupling body (1), a connecting plate (32) is arranged at one end of two fixed rods (31) located inside the coupling body (1), and a locking block (33) is arranged on the side of the connecting plate (32).

2. A mating coupling according to claim 1, characterized in that: A sleeve (35) is rotatably provided on the side of the movable plate (3) away from the coupling body (1), a top plate (37) is provided on one end of the two fixed rods (31) located outside the coupling body (1), and a threaded rod (36) is provided on the side of the top plate (37) close to the movable plate (3), and the threaded rod (36) is threadedly connected to the sleeve (35).

3. A mating coupling according to claim 2, characterized in that: A connecting spring (38) is sleeved and arranged on the fixing rod (31) between the movable plate (3) and the top plate (37).

4. A mating coupling according to claim 1, characterized in that: The locking block (33) is in the shape of an I-shaped character.

5. A connecting rod adapted for the mating coupling according to any one of claims 1 to 4, characterized in that: The connecting rod comprises: a connecting rod body (2), the end of the connecting rod body (2) being provided with clamping grooves (21) in the form of an annular array.

6. A connecting rod according to claim 5, characterized in that: The shape of the card slot (21) is "T"-shaped.

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