CN214775232U

CN214775232U - Sliding lock catch

Info

Publication number: CN214775232U
Application number: CN202120676976.6U
Authority: CN
Inventors: 夏增涛
Original assignee: Kraftwelle Hangzhou Industrial Co ltd
Current assignee: Kraftwelle Hangzhou Industrial Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-19
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a sliding lock catch, which relates to the field of connecting pieces and comprises a lock pin, a lock catch, a spring, a rotary bottom shaft, a bottom plate and a special-shaped groove, wherein the lock pin is arranged on a left connecting piece, and the bottom plate is fixed on a right connecting piece; offer the dysmorphism groove on the bottom plate, the dysmorphism groove is formed by circular port and slotted hole connection, the bottom plate below is located to rotatory bottom shaft, rotatory bottom shaft is rotatory through the knob control of cover establishing in its bottom, it is protruding that rotatory bottom shaft top is equipped with waist type, waist type arch runs through the dysmorphism groove and stretches out from the dysmorphism groove top, set up the connect the via hole who runs through this rotatory bottom shaft in the middle of the waist type arch, it is fixed to supply the connecting pin to insert to drive the protruding special-shaped groove of making a round trip to slide along the dysmorphism groove of waist type of rotatory bottom shaft. The utility model is simple in operation convenient, but wide application in the connection of two parts that need make up and use and exclusive use, only need during the operation one hand can lock, unblock, has effectively improved production operating efficiency.

Description

Sliding lock catch

Technical Field

The utility model relates to a field of connecting piece, concretely relates to slip hasp.

Background

In actual production life, two parts are often required to be locked together through a connecting piece, and after the two parts are used in combination for a period of time, the two parts are required to be separated and used independently. For example, during use of two tool carts, a lock catch is required for locking and unlocking. However, the existing tool vehicle lock catch is not convenient to use, the two vehicles are easy to slip after being locked, the locking operation is usually carried out by two hands, and if only one hand of an operator is empty, the one-hand locking or separating operation is difficult to carry out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a slip hasp, have simple structure, convenient to use, safe and reliable's advantage.

The purpose of the utility model is accomplished through following technical scheme: a sliding lock catch is movably connected between a left connecting piece and a right connecting piece and comprises a lock pin, a lock catch, a spring, a rotating bottom shaft, a bottom plate and a special-shaped groove, wherein the lock pin is arranged at one side edge of the left connecting piece, the bottom plate is fixed at one side edge of the right connecting piece, the bottom plate in a structure like a Chinese character ji comprises a middle plate and edge plates arranged at two sides of the middle plate, a height difference is formed between the middle plate and the edge plates, a small notch is formed at one side edge of the middle plate, a large notch is formed at the other side edge of the middle plate, one end of the spring is hooked on the small notch, and the other end of the spring extends out of the large notch and is fixedly connected with the lock catch; the top of the lock catch is rotationally connected to the middle plate, one side of the bottom of the lock catch is provided with a lock hook inclined plane for matching with a lock pin to slide in and lock, and the other side of the bottom of the lock catch is provided with a connecting pin; a special-shaped groove is formed in the position, corresponding to the connecting pin, of the middle plate, the special-shaped groove is formed by connecting a circular hole and a long circular hole, the rotating bottom shaft is arranged below the bottom plate, the rotating bottom shaft is controlled to rotate through a knob sleeved at the bottom of the rotating bottom shaft, a waist-shaped bulge is arranged at the top of the rotating bottom shaft, the waist-shaped bulge penetrates through the special-shaped groove and extends out of the upper side of the special-shaped groove, a connecting through hole penetrating through the rotating bottom shaft is formed in the middle of the waist-shaped bulge, the connecting pin is inserted and fixed, and therefore the waist-shaped bulge of the rotating bottom shaft is driven to slide back and forth along the special-shaped groove; the diameter of the excircle of the waist-shaped bulge is smaller than or equal to that of the round hole and larger than the long round hole, so that the waist-shaped bulge can selectively pass through the long round hole under the control of the knob.

As a further technical scheme, the device also comprises a limiting piece, wherein a waist-shaped hole used for being matched with the waist-shaped bulge is formed in the limiting piece, the limiting piece is arranged above the special-shaped groove, the waist-shaped bulge is embedded into the waist-shaped hole, so that the limiting piece rotates along with the rotation of the rotating bottom shaft, two ends of the limiting piece are respectively provided with a limiting edge, and a limiting bulge is arranged on the middle plate close to the special-shaped groove; when the horizontal axis of the waist-shaped bulge is parallel to the axis of the long round hole and can just pass through the long round hole, one limiting edge of the limiting sheet is just clamped on the limiting bulge; when the horizontal axis of the waist-shaped bulge is vertical to the axis of the long round hole and can not pass through the long round hole, the other limiting edge of the limiting sheet is just clamped on the limiting bulge.

As a further technical scheme, a plurality of through holes are formed in the edge plate and used for fixing the bottom plate on the right connecting piece through threaded connection.

As a further technical scheme, the top of the lock catch is provided with a top hole, and a lock catch fixing hole is formed in a corresponding position on the middle plate and used for being matched with the top hole to fix the lock catch on the bottom plate in a rotating mode.

As a further technical scheme, a spring fixing hole is formed in the position, corresponding to the large notch, of the lock catch and used for being matched with and fixing the spring.

As a further technical scheme, a base plate is arranged at the bottom of the rotary bottom shaft, and a positioning notch is arranged on the base plate and used for being embedded into a rotating shaft positioning hole formed in the matching knob to position and fix the rotary bottom shaft and the knob.

As the preferred technical scheme, the lock pin, the lock catch, the spring, the rotary bottom shaft, the bottom plate and the limiting piece are all made of stainless steel.

As the preferred technical scheme, the knob is made by plastic injection molding or zinc alloy die casting.

As an optimal technical scheme, a lock hook reverse inclined surface is arranged at the tail end of the lock hook inclined surface and is perpendicular to the lock hook inclined surface.

The utility model has the advantages that:

1. the locking and the separation can be realized through one push-pull action by one hand;

2. the locking and the separation can be realized by rotating the knob by 90 degrees, and the operation is simple and convenient;

3. the locking is firm and is not easy to loosen. Can not automatically slip.

Drawings

Fig. 1 is an exploded view of the structure of the present invention.

Fig. 2 is a schematic structural view of the lock catch.

Fig. 3 is a schematic structural diagram of the base plate.

Fig. 4 is a schematic view of the structure of the rotary bottom shaft.

Fig. 5 is a schematic structural view of the limiting sheet.

Fig. 6 is a schematic structural diagram 1 of the tool bogie assembly during connection.

Fig. 7 is a schematic structural diagram 2 of the tool bogie assembly during connection.

Fig. 8 is a schematic structural diagram 3 of the tool bogie assembly when connected.

Fig. 9 is a schematic structural diagram 4 (left and right connecting members are omitted) when the tool bogie combination is connected.

Description of reference numerals: the lock catch comprises a left connecting piece 1, a right connecting piece 2, a lock pin 3, a lock catch 4, a connecting pin 4-1, a top hole 4-2, a spring fixing hole 4-3, a lock hook 5, a lock hook inclined plane 6, a lock hook reverse inclined plane 6-1, a spring 7, a rotary bottom shaft 8, a waist-shaped bulge 8-1, a connecting through hole 8-2, a chassis 8-3, a positioning notch 8-4, a bottom plate 9, a middle plate 9-1, an edge plate 9-2, a small notch 9-3, a large notch 9-4, a limiting bulge 9-5, a lock catch fixing hole 9-6, a special-shaped groove 10, a circular hole 10-1, a long circular hole 10-2, a knob 11, a rotating shaft positioning hole 11-1, a limiting sheet 12, a waist-shaped hole 12-1 and a limiting edge 12-2.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in fig. 1 and 6, the sliding lock catch is movably connected between a left connecting piece 1 and a right connecting piece 2 (in this embodiment, the left connecting piece 1 and the right connecting piece 2 are tool trolleys that need to be used in combination or separately), and includes a lock pin 3, a lock catch 4, a spring 7, a rotating bottom shaft 8, a bottom plate 9 and a special-shaped groove 10, wherein the lock pin 3 is arranged at one side edge of the left connecting piece 1, and the bottom plate 9 is fixed at one side edge of the right connecting piece 2. Referring to fig. 3, the bottom plate 9 in a zigzag structure includes a middle plate 9-1 and edge plates 9-2 disposed at both sides of the middle plate 9-1, and the edge plates 9-2 are provided with a plurality of through holes for fixing the bottom plate 9 to the right connecting member 2 by screw connection. The height difference is formed between the middle plate 9-1 and the edge plate 9-2, a small notch 9-3 is formed in one edge of the middle plate 9-1, a large notch 9-4 is formed in the edge of the other side of the middle plate 9-1, one end of the spring 7 is hooked on the small notch 9-3, and the other end of the spring 7 extends out of the large notch 9-4 and is fixedly connected with the lock catch 4. As shown in fig. 2, a top hole 4-2 is formed at the top of the lock catch 4, and a lock catch fixing hole 9-6 is formed at a corresponding position on the middle plate 9-1 and is used for matching with the top hole 4-2 to fix the lock catch 4 on the bottom plate 9 in a rotating manner; the lock catch 4 is provided with a spring fixing hole 4-3 corresponding to the large gap 9-4 for matching and fixing the spring 7. The top of the lock catch 4 is rotatably connected to the middle plate 9-1, one side of the bottom of the lock catch 4 is provided with a lock hook 5 with a lock hook inclined surface 6, the tail end of the lock hook inclined surface 6 is provided with a lock hook reverse inclined surface 6-1, the lock hook reverse inclined surface 6-1 is perpendicular to the lock hook inclined surface 6 and is used for being matched with the lock pin 3 to slide in and lock, and the other side of the bottom of the lock catch 4 is provided with a connecting pin 4-1; the middle plate 9-1 is provided with a special-shaped groove 10 at the position corresponding to the connecting pin 4-1, and the special-shaped groove 10 is formed by connecting a circular hole 10-1 and a long circular hole 10-2.

As shown in fig. 4, the rotary bottom shaft 8 is disposed below the bottom plate 9, the rotary bottom shaft 8 is controlled to rotate by a knob 11 sleeved at the bottom of the rotary bottom shaft 8, a chassis 8-3 is disposed at the bottom of the rotary bottom shaft 8, and a positioning notch 8-4 is disposed on the chassis 8-3 and used for being embedded into a rotating shaft positioning hole 11-1 formed in the knob 11 to position and fix the rotary bottom shaft 8 and the knob 11. The top of the rotary bottom shaft 8 is provided with a waist-shaped bulge 8-1, the waist-shaped bulge 8-1 penetrates through the special-shaped groove 10 and extends out of the upper part of the special-shaped groove 10, the middle of the waist-shaped bulge 8-1 is provided with a connecting through hole 8-2 penetrating through the rotary bottom shaft 8 for inserting and fixing a connecting pin 4-1, so that the waist-shaped bulge 8-1 of the rotary bottom shaft 8 is driven to slide back and forth along the special-shaped groove 10; the diameter of the excircle of the waist-shaped bulge 8-1 is smaller than or equal to that of the round hole 10-1 and larger than that of the long round hole 10-2, so that the waist-shaped bulge 8-1 can selectively pass through the long round hole 10-2 under the control of the knob 11.

As shown in fig. 5, a waist-shaped hole 12-1 for matching with the waist-shaped protrusion 8-1 is formed in the limiting piece 12, the limiting piece 12 is arranged above the special-shaped groove 10, the waist-shaped protrusion 8-1 is embedded into the waist-shaped hole 12-1, so that the limiting piece 12 rotates along with the rotation of the rotating bottom shaft 8, two limiting edges 12-2 are respectively arranged at two ends of the limiting piece 12, and a limiting protrusion 9-5 is arranged on the middle plate 9-1 and close to the special-shaped groove 10; when the horizontal axis of the waist-shaped bulge 8-1 is parallel to the axis of the long round hole 10-2 and can just pass through the long round hole 10-2, one limiting edge 12-2 of the limiting sheet 12 is just clamped on the limiting bulge 9-5; when the horizontal axis of the waist-shaped bulge 8-1 is vertical to the axis of the long round hole 10-2 and can not pass through the long round hole 10-2, the other limiting edge 12-2 of the limiting sheet 12 is just clamped on the limiting bulge 9-5.

Preferably, the lock pin 3, the lock catch 4, the spring 7, the rotary bottom shaft 8, the bottom plate 9 and the limiting piece 12 are all made of stainless steel. The knob 11 is made of plastic injection molding or zinc alloy die casting.

The utility model discloses a working process: when two tool trolleys (namely the left connecting piece 1 and the right connecting piece 2) need to be combined for use, one side of the left connecting piece 1 provided with the lock pin 3 and one side of the right connecting piece 2 provided with the lock catch 4 are closed, and as shown in figure 6, the right connecting piece 2 is gradually pushed downwards; at this time, the lock pin 3 moves obliquely along the inclined surface 6 of the lock hook, the lock catch 4 (the connecting pin 4-1) rotates leftwards, the spring 7 extends, and as shown in fig. 7, the waist-shaped protrusion 8-1 on the rotating bottom shaft 8 slides leftwards along the long circular hole 10-2 along with the movement of the connecting pin 4-1; when the lock pin 3 moves to the end of the inclined surface 6 of the lock hook, the lock pin automatically slides into the lock hook 5, the latch 4 returns to the initial position under the action of the elastic force of the spring 7, the lock pin 3 is locked in the lock hook 5 (namely, the inner side of the inclined surface 6-1 of the lock hook), and the left connecting piece 1 and the right connecting piece 2 are folded, as shown in fig. 8. In order to prevent the lock pin 3 from slipping, in the state shown in fig. 8, the knob 11 is rotated clockwise by 90 degrees, so that the limiting edge 12-2 of the limiting sheet 12 is just clamped on the limiting protrusion 9-5, as shown in fig. 9, the horizontal axis of the waist-shaped protrusion 8-1 is perpendicular to the axis of the long round hole 10-2, the excircle diameter of the waist-shaped protrusion 8-1 is larger than the long round hole 10-2, so that the waist-shaped protrusion cannot pass through the long round hole 10-2, the lock catch 4 cannot rotate, and the lock pin 3 is locked and cannot be opened. The entire locking process can be referred to fig. 6 → fig. 7 → fig. 8 → fig. 9.

When two tool trolleys need to be loosened, the knob 11 is rotated 90 degrees anticlockwise to drive the rotary bottom shaft 8 to rotate, the special-shaped groove 10 in the bottom plate 9 loses the limiting effect, at the moment, the left connecting piece 1 is pushed outwards, the lock pin 3 drives the lock catch 4 to bounce open under the action of the lock hook reverse inclined surface 6-1 (namely, the lock pin 3 moves downwards along the lock hook reverse inclined surface 6-1 in an inclined mode to enable the lock catch 4 to rotate leftwards), the lock pin 3 slides out of the lock hook reverse inclined surface 6-1 to be separated from the lock hook 5, the left connecting piece 1 and the right connecting piece 2 slide out of the lock hook, the two tool trolleys are separated and used independently, and the whole unlocking process can refer to fig. 9 → 8 → 7 → 6.

Generally speaking, the utility model is simple in operation convenient, but wide application in the connection of two parts that need the combined use and used alone, only need during the operation one hand can lock, unblock, has effectively improved production operating efficiency.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. The utility model provides a slip hasp, swing joint is between left connecting piece (1) and right connecting piece (2), its characterized in that: comprises a lock pin (3), a lock catch (4), a spring (7), a rotary bottom shaft (8), a bottom plate (9) and a special-shaped groove (10), a lock pin (3) is arranged at one side edge of the left connecting piece (1), a bottom plate (9) is fixed at one side edge of the right connecting piece (2), the bottom plate (9) in a structure like a Chinese character 'ji' comprises a middle plate (9-1) and edge plates (9-2) arranged at two sides of the middle plate (9-1), a height difference is formed between the middle plate (9-1) and the edge plates (9-2), a small notch (9-3) is formed in one side edge of the middle plate (9-1), a large notch (9-4) is formed in the other side edge of the middle plate (9-1), one end of a spring (7) is hooked on the small notch (9-3), and the other end of the spring (7) extends out of the large notch (9-4) and is fixedly connected with a lock catch (4); the top of the lock catch (4) is rotatably connected to the middle plate (9-1), one side of the bottom of the lock catch (4) is provided with a lock hook (5) with a lock hook inclined plane (6) for matching with the lock pin (3) to slide in and lock, and the other side of the bottom of the lock catch (4) is provided with a connecting pin (4-1); a special-shaped groove (10) is arranged on the middle plate (9-1) corresponding to the connecting pin (4-1), the special-shaped groove (10) is formed by connecting a circular hole (10-1) and a long circular hole (10-2), a rotary bottom shaft (8) is arranged below the bottom plate (9), the rotary bottom shaft (8) is controlled to rotate by a knob (11) sleeved at the bottom of the rotary bottom shaft, a waist-shaped bulge (8-1) is arranged at the top of the rotary bottom shaft (8), the waist-shaped bulge (8-1) penetrates through the special-shaped groove (10) and extends out from the upper part of the special-shaped groove (10), a connecting through hole (8-2) penetrating through the rotary bottom shaft (8) is arranged in the middle of the waist-shaped bulge (8-1) for the connecting pin (4-1) to be inserted and fixed, thereby driving the waist-shaped protrusion (8-1) of the rotary bottom shaft (8) to slide back and forth along the special-shaped groove (10); the diameter of the excircle of the waist-shaped bulge (8-1) is smaller than or equal to that of the round hole (10-1) and larger than that of the long round hole (10-2), so that the waist-shaped bulge (8-1) can selectively pass through the long round hole (10-2) under the control of the knob (11).

2. The slide latch of claim 1 wherein: the special-shaped groove is characterized by further comprising a limiting piece (12), a waist-shaped hole (12-1) used for being matched with the waist-shaped protrusion (8-1) is formed in the limiting piece (12), the limiting piece (12) is arranged above the special-shaped groove (10), the waist-shaped protrusion (8-1) is embedded into the waist-shaped hole (12-1), the limiting piece (12) rotates along with the rotation of the rotating bottom shaft (8), two limiting edges (12-2) are respectively arranged at two ends of the limiting piece (12), and a limiting protrusion (9-5) is arranged on the middle plate (9-1) and close to the special-shaped groove (10); when the horizontal axis of the waist-shaped bulge (8-1) is parallel to the axis of the long round hole (10-2) and can just pass through the long round hole (10-2), one limiting edge (12-2) of the limiting sheet (12) is just clamped on the limiting bulge (9-5); when the horizontal axis of the waist-shaped bulge (8-1) is vertical to the axis of the long round hole (10-2) and can not pass through the long round hole (10-2), the other limiting edge (12-2) of the limiting sheet (12) is just clamped on the limiting bulge (9-5).

3. The slide latch of claim 1 wherein: the edge plate (9-2) is provided with a plurality of through holes for fixing the bottom plate (9) on the right connecting piece (2) through threaded connection.

4. The slide latch of claim 1 wherein: the top of the lock catch (4) is provided with a top hole (4-2), and the corresponding position on the middle plate (9-1) is provided with a lock catch fixing hole (9-6) which is used for matching with the top hole (4-2) to rotationally fix the lock catch (4) on the bottom plate (9).

5. The slide latch of claim 1 wherein: spring fixing holes (4-3) are formed in the positions, corresponding to the large gaps (9-4), of the lock catches (4) and used for being matched with and fixing the springs (7).

6. The slide latch of claim 1 wherein: the bottom of the rotary bottom shaft (8) is provided with a chassis (8-3), and the chassis (8-3) is provided with a positioning notch (8-4) which is used for being embedded into a rotary shaft positioning hole (11-1) formed in the matching knob (11) to position and fix the rotary bottom shaft (8) and the knob (11).

7. The slide latch of claim 1 wherein: the lock pin (3), the lock catch (4), the spring (7), the rotary bottom shaft (8), the bottom plate (9) and the limiting sheet (12) are all made of stainless steel.

8. The slide latch of claim 1 wherein: the knob (11) is made of plastic injection molding or zinc alloy die casting.

9. The slide latch of claim 1 wherein: the tail end of the lock hook inclined surface (6) is provided with a lock hook reverse inclined surface (6-1), and the lock hook reverse inclined surface (6-1) is perpendicular to the lock hook inclined surface (6).