Dual position controllable limit block

Abstract

The present invention belongs to the field of limit blocks, and in particular to a dual-position controllable limit block. In view of the problem that the existing ordinary mechanical limit block has only one fixed length and cannot realize the switching of two limit blocks of different sizes, resulting in inconvenience in use, the following scheme is proposed, which includes a stop block body, a piston hole is opened on the stop block body, and a piston core is installed in the piston hole, both ends of the piston hole are blocked with connecting heads, and the connecting heads are connected to an air pipe joint, a sliding hole is opened on the front side of the stop block, and the sliding hole is connected to the piston hole. The present invention is an improved version of an ordinary fixed limit block, which is used as a mechanical limit block for reciprocating motion, and can realize the switching of two limit blocks of different sizes by driving the internal piston core by compressed air, and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of limit blocks, and in particular to a dual-position controllable limit block. Background Art

[0002] Ordinary mechanical limit blocks have only one fixed length and cannot switch between limit blocks of two different sizes, resulting in inconvenience in use.

[0003] Therefore, we proposed a dual-position controllable limit block to solve the above problems. Summary of the invention

[0004] The dual-position controllable limit block proposed by the present invention solves the problem that ordinary mechanical limit blocks have only one fixed length and cannot realize the switching of limit blocks of two different sizes, resulting in inconvenience in use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-position controllable limit block comprises a stop body, a piston hole is provided on the stop body, and a piston core is installed in the piston hole, both ends of the piston hole are blocked with connectors, and the connectors are connected to an air pipe joint, a sliding hole is provided on the front side of the stop body, and the sliding hole is connected to the piston hole, a transmission pin is slidably installed in the sliding hole, and the transmission pin is connected to the piston core, an axial hole provided on the stop body is provided above the sliding hole, and a central axis is installed in the axial hole, one end of the central axis extends to the front side of the stop body and is sleeved with a shaft sleeve, and a pendulum block is sleeved on the shaft sleeve, one end of a length adjusting screw is installed on both sides of the bottom of the pendulum block, and a stop collision block is installed on the other end of the length adjusting screw, a transmission groove is provided on the side of the pendulum block close to the stop body, and an end of the transmission pin away from the piston core is slidably installed in the transmission groove.

[0007] Preferably, both ends of the piston core are equipped with sealing rings, and the sealing rings are sealed with the inner wall of the piston hole.

[0008] Preferably, the air pipe joint is used to provide compressed air, and the connector is used to seal the piston core in the piston hole.

[0009] Preferably, a transmission hole is provided on the piston core, and a transmission pin is inserted into the transmission hole.

[0010] Preferably, locking rings are provided at both ends of the central axis, and the locking rings are used to lock the central axis.

[0011] Preferably, the side of the sleeve close to the stop body contacts an inner gasket sleeved on the central shaft, and an outer gasket sleeved on the central shaft is provided between the locking ring on the end of the central shaft close to the pendulum block and the pendulum block.

[0012] Preferably, the central axis and the shaft sleeve are used to connect the pendulum block to the stop body, and to drive the pendulum block to swing with the central axis as the center.

[0013] Preferably, the transmission pin is used to drive the pendulum block to swing when the piston core moves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Due to the provision of a connector, an air pipe connector and a sealing ring, compressed air can be provided and the piston core can be driven to move in the piston hole.

[0016] 2. Due to the provision of the central axis, the shaft sleeve and the shaft hole, the pendulum block can be connected to the stop body, and the pendulum block can be swung with the central axis as the center.

[0017] 3. Since a transmission pin is provided, the pendulum block can be driven to swing when the piston core moves.

[0018] The present invention is an improved version of a common fixed limit block, which is used as a mechanical limit block for reciprocating motion, can drive an internal piston core through compressed air to realize switching between two limit blocks of different sizes, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the explosion structure of the dual-position controllable limit block proposed by the present invention;

[0020] Figure 2 This is a front view structural schematic diagram of the dual-position controllable limit block proposed in the present invention.

[0021] In the figure: 1 stop body, 2 locking ring, 3 middle shaft, 4 inner gasket, 5 sleeve, 6 swing block, 7 transmission pin, 8 length adjustment screw, 9 stop collision block, 10 outer gasket, 11 air pipe joint, 12 connecting head, 13 piston core. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-2, a double-position controllable limit block comprises a stop body 1, a piston hole is provided on the stop body 1, and a piston core 13 is installed in the piston hole, both ends of the piston hole are blocked with connectors 12, and the connector 12 is connected to a trachea joint 11, a sliding hole is provided on the front side of the stop body 1, and the sliding hole is connected to the piston hole, a transmission pin 7 is slidably installed in the sliding hole, and the transmission pin 7 is connected to the piston core 13, an axial hole provided on the stop body 1 is provided above the sliding hole, and a central axis 3 is installed in the axial hole, one end of the central axis 3 extends to the front side of the stop body 1 and is sleeved with a shaft sleeve 5, and a swing block 6 is sleeved on the shaft sleeve 5, one end of the length adjusting screw 8 is installed on both sides of the bottom of the swing block 6, and a stop collision block 9 is installed on the other end of the length adjusting screw 8, a transmission groove is provided on the side of the swing block 6 close to the stop body 1, and the end of the transmission pin 7 away from the piston core 13 is slidably installed in the transmission groove.

[0024] In this embodiment, both ends of the piston core 13 are equipped with sealing rings, and the sealing rings are sealed with the inner wall of the piston hole, the air pipe joint 11 is used to provide compressed air, and the connecting head 12 is used to seal the piston core 13 in the piston hole, a transmission hole is opened on the piston core 13, and the transmission pin 7 is stuck in the transmission hole, both ends of the central axis 3 are provided with locking rings 2, and the locking ring 2 is used to lock the central axis 3, the side of the sleeve 5 close to the stop body 1 is in contact with the inner gasket 4 sleeved on the central axis 3, and the locking ring 2 on the end of the central axis 3 close to the pendulum block 6 and the outer gasket 10 sleeved on the central axis 3 is provided between the pendulum block 6, the central axis 3 and the sleeve 5 are used to connect the pendulum block 6 to the stop body 1, and are used to drive the pendulum block 6 to swing with the central axis 3 as the center, and the transmission pin 7 is used to drive the pendulum block 6 to swing when the piston core 13 moves. Due to the provision of the connecting head 12, the air pipe joint 11 and the sealing ring, compressed air can be provided and the piston core 13 can be driven to move in the piston hole. Since the central axis 3, the shaft sleeve 5 and the shaft hole are provided, the swing block 6 can be connected to the stop body 1, and the swing block 6 can swing with the central axis 3 as the center. Since the transmission pin 7 is provided, the swing block 6 can be driven to swing when the piston core 13 moves. The present invention is an improved version of the ordinary fixed limit block, which is used as a mechanical limit block for reciprocating motion. It can realize the switching of two limit blocks of different sizes by driving the internal piston core through compressed air, and is easy to use.

[0025] In this embodiment, the piston hole, the piston core 13 and the sealing ring constitute a structure similar to the principle of a cylinder; the piston core 13 is equipped with sealing rings at both ends, and is sealed in the stop body 1 through the connectors 12 at both ends, and the air pipe joint 11 is directly connected to one side of the connector 12 to provide compressed air; the piston core 13 is connected to the transmission pin 7 through the sliding hole on the stop body 1, and the other end of the transmission pin 7 slides in the transmission groove on the inner side of the pendulum block 6; the upper part of the pendulum block 6 is connected to the stop body 1 through the central axis 3, the sleeve 5 and other parts, and can swing with the central axis 3 as the center of the circle, and the power of the swing comes from the piston core 13; two sets of stop collision blocks 9 and the length adjustment screw 8 are respectively installed at two angles of the pendulum block 6;

[0026] The air pipe joint 11 provides compressed air to the piston hole through the connector 12. The compressed air squeezes the sealing ring, driving the piston core 13 to move. The piston core 13 drives the pendulum block 6 to swing around the central axis 3 through the transmission pin 7, thereby realizing the switching of two limit blocks of different sizes.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dual-position controllable limit block, comprising a stop body (1), characterized in that: The stop body (1) is provided with a piston hole, and a piston core (13) is installed in the piston hole. Both ends of the piston hole are blocked with connectors (12), and the connector (12) is connected to a trachea connector (11). The front side of the stop body (1) is provided with a sliding hole, and the sliding hole is connected to the piston hole. A transmission pin (7) is slidably installed in the sliding hole, and the transmission pin (7) is connected to the piston core (13). An axial hole is provided on the stop body (1) above the sliding hole, and the axial hole A central shaft (3) is installed inside, one end of the central shaft (3) extends to the front side of the stop body (1) and is sleeved with a shaft sleeve (5), and a swing block (6) is sleeved on the shaft sleeve (5), one end of a length adjustment screw (8) is installed on both sides of the bottom of the swing block (6), and a stop block (9) is installed on the other end of the length adjustment screw (8), a transmission groove is opened on the side of the swing block (6) close to the stop body (1), and the end of the transmission pin (7) away from the piston core (13) is slidably installed in the transmission groove; The piston core (13) is provided with a transmission hole, and the transmission pin (7) is inserted into the transmission hole; Both ends of the central axis (3) are provided with locking rings (2), and the locking rings (2) are used to lock the central axis (3); The side of the shaft sleeve (5) close to the stop body (1) contacts an inner gasket (4) sleeved on the middle shaft (3); an outer gasket (10) sleeved on the middle shaft (3) is provided between the locking ring (2) on the end of the middle shaft (3) close to the swing block (6) and the swing block (6); The central shaft (3) and the shaft sleeve (5) are used to connect the swing block (6) to the stop body (1), and to drive the swing block (6) to swing with the central shaft (3) as the center of the circle; The transmission pin (7) is used to drive the pendulum block (6) to swing when the piston core (13) moves.

2. The dual-position controllable limit block according to claim 1, characterized in that: Both ends of the piston core (13) are equipped with sealing rings, and the sealing rings are in sealing cooperation with the inner wall of the piston hole.

3. The dual-position controllable limit block according to claim 1, characterized in that: The air pipe joint (11) is used to provide compressed air, and the connector (12) is used to seal the piston core (13) in the piston hole.

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