A push table device with a secondary push-off structure

Abstract

The utility model is suitable for woodwork equipment technical field provides a kind of push table device with the structure of secondary push, including device main body, device main body includes upper section bar, lower section bar and baffle combination, intermediate baffle and baffle are installed in lower section bar and retainer baffle; Locking structure, locking structure includes lock seat, lock core, spring, elastic cylindrical pin and press handle, press handle has long round hole, elastic cylindrical pin is inserted in long round hole, elastic cylindrical pin is installed in the sliding slot on lock seat, elastic cylindrical pin is inserted in lock core, lock core is inserted in lock seat;In the utility model, woodwork presses press handle, and elastic cylindrical pin slides upward along sliding slot;Lock core is lifted upward and crosses intermediate baffle, and upper section bar moves forward, until one of retainer baffle and rear lower baffle collide;The other end of lock seat away from press handle and the other retainer baffle collide, so that upper section bar stops again, to realize secondary push.

Description

Technical Field

[0001] This utility model belongs to the technical field of woodworking equipment, and in particular relates to a push-table device with a secondary push-open structure. Background Technology

[0002] A woodworking sliding table saw is mainly used for sawing large pieces of timber or boards. The main working method involves fixing the wood or engineered wood to a sliding table and pushing the wood through a saw blade driven by a motor. When using it, the carpenter places the wood on the table and pushes it past the saw blade to cut, groove, mill, and perform other processing. Therefore, the sliding table is a very important auxiliary device when using a table saw.

[0003] However, in actual operation, in the existing technology, after the upper profile impact block of the push table contacts the retainer impact plate, and after the lower profile impact block contacts the retainer impact plate, the push table reaches its travel limit and cannot be pushed open again. This is inconvenient for carpenters to replace saw blades or perform other special operations such as maintenance. Therefore, a push table device with a secondary push-open structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a pusher device with a secondary push-open structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pusher device with a secondary push-opening structure includes:

[0007] The device body includes an upper profile, a lower profile, and a collision block assembly. The upper profile is slidably disposed on the lower profile. The collision block assembly includes a middle collision block and a rear lower collision block. The middle collision block is detachably installed at the middle position of the lower profile, and the rear lower collision block is detachably installed at one end of the lower profile.

[0008] A locking structure includes a locking seat, a lock cylinder, a spring, a resilient cylindrical pin, and a pressing handle. The locking seat is detachably mounted on one end of the upper profile. The pressing handle is rotatably mounted on the locking seat. The front end of the pressing handle has an elongated hole. One end of the resilient cylindrical pin is inserted into the elongated hole, and the middle section of the resilient cylindrical pin is inserted into the lock cylinder. The locking seat has a mounting hole. The lock cylinder is movably inserted into the mounting hole. The spring is mounted in the mounting hole, and both ends of the spring contact the mounting surfaces of the lock cylinder and the upper profile, respectively.

[0009] A retainer structure is movably disposed between the upper profile and the lower profile. The retainer structure includes a connecting frame, rollers, and retainer plates. Each pair of rollers and retainer plates is provided. The pair of rollers is rotatably mounted at both ends of the connecting frame, and the pair of retainer plates is fixedly mounted at both ends of the connecting frame. The pair of rollers is positioned between the pair of retainer plates.

[0010] In a further technical solution, the lock cylinder is chamfered at the end away from the spring, and the intermediate stop block is inclined at the end near the baffle. The lower end of the chamfer of the lock cylinder is adapted to the inclined surface of the intermediate stop block.

[0011] In a further technical solution, the locking structure also includes a polyurethane elastomer, which is installed at the end of the locking seat away from the pressing handle.

[0012] In a further technical solution, the locking seat has sliding grooves on opposite sides, and the two ends of the elastic cylindrical pin are respectively inserted into a pair of sliding grooves.

[0013] In a further technical solution, the main body of the device also includes an external locking lever, which is rotatably mounted on the side of the upper profile. The side wall of the external locking lever has a locking plate, and the side of the lower profile has a plurality of spaced locking grooves. The locking plate engages with the locking grooves.

[0014] A further technical solution describes a device body that also includes a push handle, which is fixedly installed at one end of the upper profile.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a locking structure comprising a locking seat, a lock cylinder, a spring, a resilient cylindrical pin, and a pressing handle. The pressing handle has an elongated hole into which the resilient cylindrical pin is inserted. The resilient cylindrical pin is also inserted into a groove in the locking seat, with the middle section of the resilient cylindrical pin inserted into the lock cylinder. The locking seat has a mounting hole into which the lock cylinder is movably inserted. The spring is mounted in the mounting hole, with both ends of the spring contacting the mounting surfaces of the lock cylinder and the upper profile, respectively.

[0017] The carpenter presses down the handle, causing the elastic cylindrical pin in the elongated hole to slide upwards along the groove; this lifts the lock cylinder upwards, allowing it to pass the middle stop block, enabling the carpenter to continue pushing the upper profile forward until the retaining plate near the lower rear stop block collides with it; simultaneously, the end of the locking seat furthest from the handle collides with another retaining plate; at this point, the upper profile stops again, thus achieving a second push-open;

[0018] In this invention, the lock cylinder has a chamfered end away from the spring, and the intermediate stop block has an inclined end near the baffle. The lower end of the chamfered lock cylinder matches the inclined surface of the intermediate stop block. When the carpenter pulls the push handle to move the upper profile in the opposite direction, the lower end of the chamfered lock cylinder fits against the inclined surface of the intermediate stop block, causing the lower end of the lock cylinder to move upward in the mounting hole towards the spring. This allows the lower end of the lock cylinder to pass over the intermediate stop block, facilitating the continued axial movement of the upper profile along the lower profile. This enables the upper profile to be pulled back in the opposite direction without manual operation.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a partial exploded view of the present invention;

[0022] Figure 3 This is a structural diagram of the locking structure of this utility model from one angle;

[0023] Figure 4 This is a structural view of the locking structure of this utility model from another angle;

[0024] Figure 5 This is a structural diagram of the cage structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the present invention.

[0026] In the diagram: 1. Main body of the device; 11. Upper profile; 12. Lower profile; 121. Engaging groove; 13. Impact block assembly; 131. Middle impact block; 132. Lower rear impact block; 14. External locking lever; 141. Engaging plate; 15. Push handle; 2. Locking structure; 21. Locking seat; 211. Mounting hole; 212. Slide groove; 22. Lock cylinder; 23. Spring; 24. Elastic cylindrical pin; 25. Press handle; 251. Oblong hole; 26. Polyurethane elastomer; 3. Cage structure; 31. Connecting frame; 32. Roller; 33. Cage impact plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] like Figures 1 to 6 As shown, this utility model embodiment provides a pusher device with a secondary push-open structure, including:

[0030] The device body 1 includes an upper profile 11, a lower profile 12, and a collision block assembly 13. The upper profile 11 is slidably disposed on the lower profile 12. The collision block assembly 13 includes a middle collision block 131 and a rear lower collision block 132. The middle collision block 131 is detachably installed in the middle position of the lower profile 12, and the rear lower collision block 132 is detachably installed at one end of the lower profile 12.

[0031] Locking structure 2 includes a locking seat 21, a lock cylinder 22, a spring 23, an elastic cylindrical pin 24, and a pressing handle 25. The locking seat 21 is detachably installed on one end of the upper profile 11. The pressing handle 25 is rotatably installed on the locking seat 21. The front end of the pressing handle 25 has an elongated hole 251. One end of the elastic cylindrical pin 24 is inserted into the elongated hole 251, and the middle section of the elastic cylindrical pin 24 is inserted into the lock cylinder 22. The locking seat 21 has a mounting hole 211. The lock cylinder 22 is movably inserted into the mounting hole 211. The spring 23 is installed inside the mounting hole 211. The two ends of the spring 23 contact the mounting surfaces of the lock cylinder 22 and the upper profile 11, respectively.

[0032] The retainer structure 3 is movably disposed between the upper profile 11 and the lower profile 12. The retainer structure 3 includes a connecting frame 31, rollers 32 and retainer impact plates 33. Each roller 32 and retainer impact plate 33 is provided in a pair. The pair of rollers 32 are rotatably mounted on both ends of the connecting frame 31, and the pair of retainer impact plates 33 are respectively fixedly mounted on both ends of the connecting frame 31, and the pair of rollers 32 are both placed between the pair of retainer impact plates 33.

[0033] In this embodiment, when the carpenter needs to change the saw blade or perform other special operations, the carpenter presses the handle 25 to rotate the handle 25, which in turn drives the elastic cylindrical pin 24 placed in the elongated hole 251 to slide upward. The upward sliding elastic cylindrical pin 24 drives the lock cylinder 22 to lift upward, so that the lock cylinder 22 passes the intermediate stop block 131, allowing the carpenter to continue pushing the upper profile 11 forward until the retainer plate 33 close to the lower rear stop block 132 collides with the lower rear stop block 132. At the same time, the polyurethane elastomer 26 at the other end of the locking seat 21 away from the handle 25 collides with another retainer plate 33. At this time, the upper profile 11 stops again, thus realizing a second push-open, and the distance of the second push-open can be adjusted more conveniently than other second push-open structures.

[0034] Specifically, the lock cylinder 22 is chamfered at the end away from the spring 23, and the middle stop block 131 is inclined at the end near the rear lower stop block 132. The lower end of the chamfer of the lock cylinder 22 is adapted to the inclined surface of the middle stop block 131.

[0035] In this embodiment, when the carpenter pulls the push handle 15 to move the upper profile 11 in the opposite direction, the chamfered lower end of the lock cylinder 22 fits against the inclined surface of the middle stop block 131, causing the lower end of the lock cylinder 22 to move upward in the mounting hole 211 towards the direction of the spring 23, so that the lower end of the lock cylinder 22 passes the middle stop block 131, making it easier for the upper profile 11 to continue to move along the axial direction of the lower profile 12, thereby realizing the reverse pull operation of the upper profile 11 without manual operation;

[0036] Specifically, the locking structure 2 also includes a polyurethane elastomer 26, which is installed on the other end of the locking seat 21 where the pressing handle 25 is mounted.

[0037] In this embodiment, the upper profile 11 drives the locking seat 21 and the polyurethane elastomer 26 mounted on the locking seat 21 to continue moving towards the rear lower impact block 132 until the retainer impact plate 33 close to the rear lower impact block 132 collides with the rear lower impact block 132; at the same time, the polyurethane elastomer 26 collides with another retainer impact plate 33; at this time, the upper profile 11 stops again.

[0038] Specifically, the locking seat 21 has grooves 212 on opposite sides, and the two ends of the elastic cylindrical pin 24 are respectively inserted into a pair of grooves 212;

[0039] Specifically, the main body 1 of the device also includes an external locking lever 14, which is rotatably mounted on the side of the upper profile 11. The side wall of the external locking lever 14 has a locking plate 141, and the side of the lower profile 12 has a plurality of spaced locking grooves 121. The locking plate 141 is engaged with the locking grooves 121.

[0040] In this embodiment, after the upper profile 11 moves to a certain position, the carpenter rotates the outer locking lever 14 so that the locking plate 141 on the outer locking lever 14 engages in the corresponding locking groove 121, thereby stopping the relative movement between the upper profile 11 and the lower profile 12. The operation is simple.

[0041] Specifically, the main body 1 of the device also includes a push handle 15, which is fixedly installed at one end of the upper profile 11.

[0042] The working principle of this utility model is as follows:

[0043] During operation, the carpenter pushes the upper profile 11 by pushing the handle 15; at this time, under the elastic force of the spring 23, the lock cylinder 22 pops out from the mounting hole 211; when the upper profile 11 moves normally to the position of the middle stop 131, the lower end of the lock cylinder 22 away from the spring 23 collides with the middle stop 131, which is the first time the upper profile 11 is pushed open;

[0044] When the carpenter needs to change the saw blade or perform other special operations, the carpenter presses the handle 25 to rotate the handle 25, which in turn drives the elastic cylindrical pin 24 placed in the elongated hole 251 to slide upward along the slide groove 212; the upward sliding elastic cylindrical pin 24 drives the lock cylinder 22 to lift upward, so that the lock cylinder 22 passes the intermediate stop block 131, allowing the carpenter to continue pushing the upper profile 11 forward;

[0045] The upper profile 11 drives the locking seat 21 and the polyurethane elastomer 26 installed on the locking seat 21 to continue moving towards the rear lower impact block 132 until the retainer impact plate 33 close to the rear lower impact block 132 collides with the rear lower impact block 132; at the same time, the polyurethane elastomer 26 collides with another retainer impact plate 33; at this time, the upper profile 11 stops again, thus realizing the second push-open;

[0046] When the carpenter pulls the push handle 15 to move the upper profile 11 in the opposite direction, the chamfered lower end of the lock cylinder 22 fits against the inclined surface of the middle stop block 131, causing the lower end of the lock cylinder 22 to move upward in the mounting hole 211 towards the direction of the spring 23, so that the lower end of the lock cylinder 22 passes the middle stop block 131, making it easier for the upper profile 11 to continue to move along the axial direction of the lower profile 12, thereby realizing the reverse pull operation of the upper profile 11 without manual operation;

[0047] In addition, after the upper profile 11 moves to a certain position, the carpenter rotates the outer locking lever 14 so that the locking plate 141 on the outer locking lever 14 engages in the corresponding locking groove 121, thereby stopping the relative movement between the upper profile 11 and the lower profile 12. The operation is simple.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pusher device with a secondary push-open structure, characterized in that, include: The device body (1) includes an upper profile (11), a lower profile (12) and a collision block assembly (13). The upper profile (11) is slidably disposed on the lower profile (12). The collision block assembly (13) includes a middle collision block (131) and a rear lower collision block (132). The middle collision block (131) is detachably installed in the middle position of the lower profile (12), and the rear lower collision block (132) is detachably installed at one end of the lower profile (12). The locking structure (2) includes a locking seat (21), a lock cylinder (22), a spring (23), an elastic cylindrical pin (24), and a pressing handle (25). The locking seat (21) is detachably installed at one end of the upper profile (11), and the pressing handle (25) is rotatably installed on the locking seat (21). The pressing handle (25) has an elongated hole (251) at its front end. One end of the elastic cylindrical pin (24) is inserted into the elongated hole (251), and the middle section of the elastic cylindrical pin (24) is inserted into the lock cylinder (22). The locking seat (21) has a mounting hole (211), and the lock cylinder (22) is movably inserted into the mounting hole (211). The spring (23) is installed in the mounting hole (211), and both ends of the spring (23) are in contact with the mounting surfaces of the lock cylinder (22) and the upper profile (11), respectively. A retainer structure (3) is movably disposed between the upper profile (11) and the lower profile (12). The retainer structure (3) includes a connecting frame (31), rollers (32) and retainer impact plates (33). Each roller (32) and retainer impact plates (33) is provided in a pair. Each pair of rollers (32) is rotatably mounted at both ends of the connecting frame (31). Each pair of retainer impact plates (33) is fixedly mounted at both ends of the connecting frame (31), and each pair of rollers (32) is placed between the pair of retainer impact plates (33).

2. The pusher device with a secondary push-open structure according to claim 1, characterized in that: The lock cylinder (22) is chamfered at one end away from the spring (23), and the middle stop block (131) is inclined at one end near the rear lower stop block (132). The lower end of the chamfer of the lock cylinder (22) is adapted to the inclined surface of the middle stop block (131).

3. The pusher device with a secondary push-open structure according to claim 2, characterized in that: The locking structure (2) further includes a polyurethane elastomer (26) which is mounted on the end of the locking seat (21) away from the pressing handle (25).

4. The pusher device with a secondary push-open structure according to claim 3, characterized in that: The locking seat (21) has grooves (212) on opposite sides, and the two ends of the elastic cylindrical pin (24) are respectively inserted into a pair of grooves (212).

5. A pusher device with a secondary push-open structure according to claim 4, characterized in that: The main body (1) of the device also includes an external locking lever (14), which is rotatably mounted on the side of the upper profile (11). The side wall of the external locking lever (14) has a locking plate (141), and the side of the lower profile (12) has a plurality of spaced locking grooves (121). The locking plate (141) is engaged with the locking grooves (121).

6. A pusher device with a secondary push-open structure according to claim 5, characterized in that: The main body (1) of the device also includes a push handle (15), which is fixedly installed at one end of the upper profile (11).

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