Manual reset-free inclined plane bolt device and shelf structure convenient to open and close

Abstract

The utility model discloses a manual-reset-free inclined plane plug pin device and a shelf structure convenient to open and close. A plug pin comprises two sleeves and pin shafts, wherein the pin shafts are arranged in the sleeves in a sleeved mode respectively, can move in the axial direction of the sleeves and can stretch out of the two ends of the sleeves. The front ends of the two pin shafts are provided with limiting pieces used for enabling the pin shafts to be inserted or withdrawn so as to achieve locking or unlocking respectively, the front end faces of the pin shafts are first inclined faces, and the corresponding faces of the limiting pieces and the first inclined faces are second inclined faces with the same inclination angle; a connecting piece used for pulling the pin shafts and enabling the pin shafts to move in the axial direction of the sleeve is connected between the rear ends of the two pin shafts. An elastic component is arranged in the sleeve; the sleeve is provided with a blocking piece used for limiting the moving path of the pin shaft. Outward pulling or releasing of the connecting piece is used for compressing or releasing the elastic component, so that the pin shaft retreats from the limiting piece or is inserted into the limiting piece along the second inclined surface to realize unlocking or locking. According to the utility model, the shelves on the same layer can be locked and unlocked at the same time; the mistake proofing performance is good, and the switching efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a latch and a shelf, in particular to a manual reset-free inclined surface latch device and a shelf structure which is easy to open and close. Background Art

[0002] The latches on the iron packaging of auto parts currently in use usually have at least two latches welded on one package. To operate a latch, it is necessary to open or close it once. Therefore, the assembly of multiple latches requires more than two operations, resulting in frequent operations and wasted work time. In addition, after the shelf is closed, people go to both sides of the material rack to manually lock the latches. There is a risk of missing the latch, which causes the shelf to fail to move during transportation due to bumps, and the shelf tilts, causing the internal parts to fall out. Summary of the invention

[0003] Purpose of the utility model: The purpose of the utility model is to provide a manual reset bevel latch device that can simplify operation and save work time;

[0004] The second object of the utility model is to provide a shelf structure that is easy to open and close.

[0005] Technical solution: The manual-free reset bevel latch device described in the utility model comprises two sleeves, respectively sleeved in the sleeves, pins which can move axially along the sleeves and extend out of the two ends of the sleeves, and limit members for inserting or withdrawing the pins to achieve locking or opening are respectively provided at the front ends of the two pins, the front end face of the pins is a first bevel, and the corresponding surface of the limit member and the first bevel is a second bevel with the same inclination angle; a connecting member for pulling the pins and moving the pins axially along the sleeves is connected between the rear ends of the two pins; an elastic member for resetting the pins after movement is provided in the sleeves; a blocking member for limiting the moving path of the pins is provided on the sleeves; outward pulling or releasing of the connecting member is used to compress or release the elastic member, so that the pins withdraw from the limit member or are inserted into the limit member along the second bevel to achieve opening or locking.

[0006] Wherein, the elastic component is a spring wound around the outer wall of the pin shaft, one end of the spring is against the front end of the pin shaft, and the other end is against the rear end of the sleeve.

[0007] Wherein, a baffle is provided at the rear end of the sleeve for the pin shaft to pass through and capable of blocking the spring.

[0008] Wherein, the blocking member includes a through slot opened on two opposite side walls of the sleeve along the axial direction of the sleeve, and a cross bar passing through the pin shaft radially and extending into the through slot respectively; the connecting member pulls the pin shaft to move and drives the cross bar to move in the through slot.

[0009] Wherein, the pin shaft includes a thick tube section close to the limit member and a thin tube section far away from the limit member, and the length of the thick tube section is smaller than that of the thin tube section; the cross bar passes through the connection position between the thick tube section and the thin tube section; the elastic component is arranged between the thick tube section and the rear end of the sleeve.

[0010] The second inclined surface of the limiting member is provided with a notch for inserting the pin shaft; the front end of the pin shaft withdraws from the notch or is pressed into the notch along the second inclined surface of the limiting member to achieve opening or locking.

[0011] Wherein, the connecting piece is a steel wire rope.

[0012] The utility model provides a shelf structure that is easy to open and close, comprising a shelf and the above-mentioned manual reset-free inclined surface latch device; the shelf comprises a frame body and a top cover that is hinged on one side of the frame body and can be opened and closed; the two sleeves in the manual reset-free inclined surface latch device are respectively fixed on the top cover and close to the two ends of the side of the frame body, and the two limit members are respectively fixed to the top ends of the side columns of the frame body and respectively correspond to the front ends of the pin shafts at both ends of the top cover.

[0013] Wherein, an instrument arm and a shelf gas spring for assisting the opening of the top cover are provided between the top cover and the top of the side of the frame.

[0014] Beneficial effects: Compared with the prior art, the utility model has achieved the following significant effects: the utility model can lock and open the same shelf at the same time; and when closing the shelf, under the action of the gravity of the shelf, the inclined surface of the latch pin shaft will automatically lock after contacting the inclined surface of the limit piece, eliminating the need for manual work to close the latch on both sides of the rack, avoiding omissions during manual work; the utility model has good error prevention performance and improves the opening and closing efficiency of the shelf. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the matching structure of the sleeve and the pin shaft of the utility model;

[0016] Figure 2 This is a schematic diagram of the casing structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the pin structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the baffle structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the utility model after the pin shaft exits the limiting member;

[0020] Figure 6 This is a schematic diagram of the structure of the utility model after the pin shaft is inserted into the limiting member;

[0021] Figure 7It is a structural schematic diagram of the shelf structure of the utility model. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings of the specification.

[0023] like Figure 1-6 As shown, the utility model provides a manual reset-free inclined plane latch device, comprising two sleeves 1, each sleeve 1 is provided with a pin shaft 2, each pin shaft 2 can move along the axial direction of the sleeve 1 and can extend out of both ends of the sleeve 1, and a stopper 6 for limiting the front end of the pin shaft 2 is also provided on the outside of the sleeve 1, and the pin shaft 2 can be inserted into the stopper 6 or withdrawn from the stopper 6 to achieve locking or opening. The pin shaft 2 includes a thick tube section 201 close to the stopper 6 and a thin tube section 202 away from the stopper 6, and the length of the thick tube section 201 is less than the length of the thin tube section 202. The front end face of the pin 2, that is, the front end face of the thick tube section 201 is a first inclined surface 203, and the corresponding surface of the limiting member 6 and the first inclined surface 203 is a second inclined surface 601 with the same inclination angle; the second inclined surface 601 of the limiting member 6 is provided with a slot 602 for inserting the pin 2, and the front end of the pin 2 can be withdrawn from the slot 602 or pressed into the slot 602 along the second inclined surface 601 of the limiting member 6 to achieve opening or locking.

[0024] A connecting member 7 for pulling the pin 2 and moving the pin 2 axially along the sleeve 1 is connected between the rear ends of the two pins 2. The connecting member 7 can be a steel wire rope. Through holes 205 for the steel wire rope to pass through are respectively opened at the rear ends of the two pins 2.

[0025] An elastic component 4 is provided in the sleeve 1 for resetting the pin shaft 2 after movement; the elastic component 4 can be a spring wound around the thin tube section 202 of the pin shaft 2, one end of the spring is against the rear end surface of the thick tube section 201, and the other end is against the rear end of the sleeve 1. A baffle 5 is provided at the rear end of the sleeve 1 for the pin shaft 2 to pass through and which can block the spring, and the other end of the spring is against the baffle 5; the baffle 5 is a hollow cylinder, and a cylindrical hole 501 is provided in the center of the cylinder for the pin shaft 2 to pass through.

[0026] A blocking member for limiting the moving path of the pin shaft 2 is provided on the sleeve 1; the blocking member includes a cross bar 3, and through grooves 101 are respectively opened in the axial direction on the two opposite side walls of the sleeve 1, and through holes 204 are radially penetrated at the connection position of the thick tube section and the thin tube section, and the cross bar passes through the through holes 204 and extends out of the through grooves 101 respectively; the steel wire rope pulls the pin shaft 2 to move and drives the cross bar 3 to move in the through groove 101 to limit the spring.

[0027] The casing 1 is a seamless pipe, and the casing 1 and the baffle 5 are welded to form an assembly. The pin 2 is installed with a spring and then put into the casing 1. The pin 2 is pressed and the blocking member is installed into the pin 2 to limit the spring; wherein the pin 2 and the blocking member are both round steel. Pulling the wire rope outward or releasing the wire rope can compress or release the elastic member 4, so that the front end of the pin 2 withdraws from the notch 602 or is pressed into the notch 602 along the inclined surface of the limiting member 6 to achieve opening or locking.

[0028] like Figure 7 As shown, the layer shelf structure of the utility model that is easy to open and close includes a layer shelf and the above-mentioned manual reset-free inclined plane latch device; the layer shelf includes a frame 10, and a top cover 8 that can be opened and closed and is hinged on the frame 10 on one side; the two sleeves 1 in the manual reset-free inclined plane latch device are respectively fixed on the top cover 8 and close to the two ends of the side of the frame 10, and the two limiters 6 are respectively fixed to the top of the side columns of the frame 10, and respectively correspond to the front ends of the pins 2 at both ends of the top cover 8. Between the top cover 8 and the top of the side of the frame 10, there are provided an instrument arm 9 for assisting the top cover 8 in opening and a layer shelf gas spring.

[0029] Working process:

[0030] When the shelf needs to be opened, the linkage wire rope connecting the rear ends of the two pins 2 is pulled, the spring is compressed, and the pins 2 are disengaged from the limiter 6, and the shelf is opened. When it needs to be closed, the wire rope is released, the spring is released, and during the process of lowering the top cover 8, due to the effect of gravity, the front end of the pin 2 is pressed down along the inclined surface of the limiter 6 and pressed into the groove of the limiter 6, reaching the closed state.

Claims

1. A manual reset-free inclined plane latch device, characterized in that: The invention comprises two sleeves (1), pins (2) respectively sleeved in the sleeves (1) and movable along the axial direction of the sleeves (1) and extending out of the two ends of the sleeves (1), and stoppers (6) respectively arranged at the front ends of the two pins (2) for inserting or withdrawing the pins (2) to achieve locking or opening, the front end surface of the pins (2) being a first inclined surface (203), and the corresponding surface of the stopper (6) and the first inclined surface (203) being a second inclined surface (601) having the same inclination angle; the rear ends of the two pins (2) are connected to each other. A connecting member (7) is provided for pulling a pin shaft (2) and causing the pin shaft (2) to move axially along a sleeve (1); an elastic member (4) is provided inside the sleeve (1) for causing the pin shaft (2) to reset after movement; a blocking member is provided on the sleeve (1) for limiting the moving path of the pin shaft (2); the connecting member (7) is pulled outward or released to compress or release the elastic member (4), thereby causing the pin shaft (2) to withdraw from the limiting member (6) or to be inserted into the limiting member (6) along the second inclined surface (601) to achieve opening or locking.

2. The manual reset-free inclined plane latch device according to claim 1, characterized in that: The elastic component (4) is a spring wound around the outer wall of the pin shaft (2), one end of the spring is abutted against the front end of the pin shaft (2), and the other end is abutted against the rear end of the sleeve (1).

3. The manual reset-free inclined plane latch device according to claim 1, characterized in that: The rear end of the sleeve (1) is provided with a baffle (5) through which the pin shaft (2) passes and which can block the spring.

4. The manual reset-free inclined plane latch device according to claim 1, characterized in that: The blocking member comprises a through slot (101) formed along the axial direction of the sleeve (1) on two opposite side walls of the sleeve (1), and a cross bar (3) passing through the pin shaft (2) radially and extending into the through slot (101) respectively; the connecting member (7) pulls the pin shaft (2) to move and drives the cross bar (3) to move in the through slot (101).

5. The manual reset-free inclined plane latch device according to claim 4, characterized in that: The pin shaft (2) comprises a thick tube section (201) close to the stopper (6) and a thin tube section (202) far from the stopper (6), the length of the thick tube section (201) being smaller than the length of the thin tube section (202); the cross bar (3) passes through the connection position between the thick tube section (201) and the thin tube section (202); and the elastic component (4) is disposed between the thick tube section (201) and the rear end of the sleeve (1).

6. The manual reset-free inclined plane latch device according to claim 1, characterized in that: The second inclined surface (601) of the limiting member (6) is provided with a notch (602) for the pin shaft (2) to be inserted.

7. The manual reset-free inclined plane latch device according to claim 1, characterized in that: The connecting piece (7) is a steel wire rope.

8. A shelf structure that is easy to open and close, characterized in that: It comprises a shelf and the manual reset-free inclined plane latch device as claimed in claim 1; the shelf comprises a frame (10) and a top cover (8) which is hinged on one side of the frame (10) and can be opened and closed; two sleeves (1) in the manual reset-free inclined plane latch device are respectively fixed on the top cover (8) and close to the two ends of the side of the frame (10); two limit members (6) are respectively fixed to the top ends of the side columns of the frame (10) and correspond to the front ends of the pin shafts (2) at the two ends of the top cover (8).

9. The easy-to-open and -close shelf structure according to claim 8, characterized in that: An instrument arm (9) and a shelf gas spring for assisting the top cover (8) in opening are provided between the top cover (8) and the top of the side of the frame (10).

Images