Ladder fixing device

Abstract

The utility model belongs to the technical field of accessories of ladders, and particularly relates to a ladder fixing device which comprises a fixing seat fixed with a ladder support and a fixing block movably mounted on the fixing seat, the fixing seat is provided with an elastic piece which abuts against the fixing block and drives the fixing block to move outwards, and the fixing block moves back and forth in the axial direction of the elastic piece. The fixing block is connected with a control piece, the fixing base is provided with a containing groove for containing the control piece, when the control piece is contained in the containing groove, the elastic piece drives the fixing block to protrude outwards, and when the lower end face of the control piece abuts against the upper end face of the containing groove, the control piece drives the fixing block to compress the elastic piece and keep an inward contraction state. The utility model aims to provide the ladder fixing device which is simple to operate, high in safety and good in overall hiding property.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladder accessories, and particularly relates to a ladder fixing device. Background Art

[0002] Ladders are widely used in daily life. Existing ladders are composed of two ladder frames, the tops of the two ladder frames are hinged together, and the side walls of the two ladder frames are fixed by ropes or connecting rods, so that the angle between the two ladder frames is fixed. The ladder frame of the ladder is set as a telescopic structure, that is, the ladder frame is set as a base frame and an extension frame, which is convenient for storage and extension of the length of the ladder; in actual users, a fixing device will be set on the ladder frame, and the extension frame will be fixed to the base frame by the fixing device, so as to form a ladder in use.

[0003] CN 208294302 U Chinese utility model patent discloses a lock assembly device. When the device is used, when the lower end of the handle is pressed, the first rivet is driven to move in the limiting hole, and the first rivet drives the pin to move, and the pin leaves the lock hole; when the lock is released and the pin moves to a specific position, the bevel spring is embedded in the annular groove to fix the pin, so that two objects can be separated; when locking, just pat the upper end of the handle with force, and the pin returns to the lock hole and is locked under the action of the spring sheet; at the same time, the bevel spring withdraws from the annular groove; the device uses a spring to achieve a locking effect more quickly, but when locking, it is necessary to pat the handle to deform the spring sheet. In actual use, such a structure makes it easy for the handle to be accidentally touched, the safety performance cannot be guaranteed, and the operation is more troublesome, and the concealment of the entire device is also poor.

[0004] Therefore, a ladder fixing device is needed which is simple to operate, highly safe and well concealed overall. Utility Model Content

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a ladder fixing device which is simple to operate, highly safe and well concealed as a whole.

[0006] The purpose of the utility model is achieved in this way:

[0007] A ladder fixing device comprises a fixing seat fixed to a ladder support and a fixing block movably mounted on the fixing seat, the fixing seat is provided with an elastic member abutting against the fixing block and driving the fixing block to move outward, the fixing block reciprocates along the axial direction of the elastic member, the fixing block is connected with a control member, the fixing seat is provided with a receiving groove for receiving the control member, when the control member is received in the receiving groove, the elastic member drives the fixing block to protrude outward, when the lower end face of the control member abuts against the upper end face of the receiving groove, the control member drives the fixing block to compress the elastic member and keep it in an inwardly contracted state.

[0008] It is further configured as follows: the outer end surface of the fixing seat protrudes outward to form a receiving seat, the upper end of the receiving seat is provided with a receiving groove, the lower end of the receiving seat is provided with an installation groove, and the fixing block is arranged in the installation groove.

[0009] It is further configured as follows: the cross section of the installation groove is circular, the outer wall of the bottom of the fixing block extends outward to form a circular hanging platform, and the hanging platform is adapted to the installation groove.

[0010] It is further configured as follows: the fixed block and the control member are connected via a connecting rod, the elastic member is sleeved outside the connecting rod; one end of the elastic member abuts against the fixed block, and the other end of the elastic member abuts against the bottom surface of the mounting groove.

[0011] It is further configured as follows: one end of the connecting rod is connected to the fixing block, and the other end of the connecting rod is detachably connected to the control member via a latch.

[0012] It is further configured as follows: the control member is rectangular, the chamber of the receiving groove is square and matches the control member, and the front and rear ends of the receiving groove are penetrated, and the two ends of the control member extend out of the front and rear ends of the receiving groove.

[0013] It is further configured as follows: the control member is triangular, the chamber of the accommodating groove is triangular in shape matching the control member, and the end of the triangular accommodating groove is penetrated, and the end of the control member extends out of the end of the accommodating groove.

[0014] It is further configured that: a plurality of anti-slip protrusions are provided at the bottom of the outer end of the control member.

[0015] It is further configured that: the outer contour of the accommodating seat is cylindrical.

[0016] It is further configured as follows: a groove is provided on the control member, and a convex column protruding upward and adapted to the groove is provided in the accommodating groove.

[0017] The beneficial effects of the utility model compared with the prior art are:

[0018] First, by arranging the control member in the receiving groove, when in a fixed state, the control member is hidden in the receiving groove, and it is not easy to be accidentally touched. At the same time, when it needs to be retracted, the upper end surface of the receiving groove is used to abut the control member, so that the control member compresses the elastic member, so that the fixed block remains in a retracted state, which is convenient to use.

[0019] Second, by setting the installation groove into a circle and matching the hanging platform with the installation groove, it is convenient for the fixed block to rotate in the installation groove, and it is convenient for the control part to stretch the fixed block outward and drive it to rotate, which is convenient for installation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model in a contracted state;

[0023] Figure 4 It is a structural sectional view of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure explosion of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the fixing seat of the utility model;

[0026] Figure 7 It is a schematic diagram of the control component structure of the utility model.

[0027] Meaning of the symbols in the figure:

[0028] 1-fixing seat; 11-accommodating seat; 12-accommodating groove; 13-convex column; 14-installation groove; 2-fixing block;

[0029] 21-hanging platform; 3-elastic member; 4-control member; 41-groove; 42-anti-slip protrusion; 5-connecting rod;

[0030] 6- Latch. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to specific embodiments of the invention:

[0032] See also Figures 1 to 7 As shown, a ladder fixing device comprises a fixing seat 1 fixed to a ladder support and a fixing block 2 movably mounted on the fixing seat 1, the fixing seat 1 is provided with an elastic member 3 abutting against the fixing block 2 and driving the fixing block 2 to move outward, the fixing block 2 reciprocates along the axial direction of the elastic member 3, the fixing block 2 is connected with a control member 4, the fixing seat 1 is provided with a receiving groove 12 for accommodating the control member 4, when the control member 4 is received in the receiving groove 12, the elastic member 3 drives the fixing block 2 to protrude outward, when the lower end surface of the control member 4 abuts against the upper end surface of the receiving groove 12, the control member 4 drives the fixing block 2 to compress the elastic member 3 and keep it in an inwardly contracted state; by arranging the control member 4 in the receiving groove 12, when in a fixed state, the control member 4 is hidden in the receiving groove 12, and it is not easy to be accidentally touched, and at the same time, when it needs to be contracted, the upper end surface of the receiving groove 12 is used to abut against the control member 4, so that the control member 4 compresses the elastic member 3, so that the fixing block 2 keeps the contracted state, which is convenient to use.

[0033] A groove 41 is provided on the control member 4, and a boss 13 protruding upward and adapted to the groove 41 is provided in the receiving groove 12, so that when the control member 4 is received in the receiving groove 12, the boss 13 and the groove 41 are inserted into each other, and the control member 4 is not easy to shake, which has a limiting effect.

[0034] In this embodiment, the outer end surface of the fixing seat 1 protrudes outward to form a receiving seat 11, the upper end of the receiving seat 11 is provided with a receiving groove 12, the lower end of the receiving seat 11 is provided with an installation groove 14, and the fixing block 2 is arranged in the installation groove 14. Through the arrangement of the receiving groove 12 and the installation groove 14, the control component 4 and the fixing block 2 can be accommodated respectively, so that the space of the fixing seat 1 itself is fully utilized.

[0035] In order to facilitate the rotation of the fixing block 2 in the installation groove 14, the cross-section of the installation groove 14 is circular, and the outer wall of the bottom of the fixing block 2 extends outward to form a circular hanging platform 21, and the hanging platform 21 is adapted to the installation groove 14; this makes it easy for the control part 4 to stretch the fixing block 2 outward and drive it to rotate, making installation and operation convenient.

[0036] To facilitate assembly, in this embodiment, the fixed block 2 and the control member 4 are connected by a connecting rod 5, and the elastic member 3 is sleeved outside the connecting rod 5; one end of the elastic member 3 abuts against the fixed block 2, and the other end of the elastic member 3 abuts against the bottom surface of the mounting groove 14; the elastic member 3 is preferably a spring, and the spring is sleeved outside the connecting rod 5.

[0037] One end of the connecting rod 5 is connected to the fixing block 2, and the other end of the connecting rod 5 is detachably connected to the control member 4 via a latch 6; both the connecting rod 5 and the control member 4 are provided with mounting holes for the latch 6 to be inserted.

[0038] One end of the connecting rod 5 can be fixed to the fixed block by threads or by rivets. In order to facilitate the installation of the pin 6 in the two mounting holes, a limiting portion is provided at one end of the connecting rod 5. After the limiting portion abuts against the fixed block 2, the connecting rod 5 is fixed to the fixed block. In this way, the position of the mounting hole can be kept unchanged. Even if one end of the connecting rod is fixed to the fixed block by rivets or threads, when the limiting portion abuts against the fixed block, it indicates that the connecting rod and the fixed block are fixed in place.

[0039] There are many ways to connect the connecting rod 5, two of which are listed in this embodiment:

[0040] 1. One end of the connecting rod 5 is fixed to the fixed block 2, and the other end of the connecting rod 5 is connected to the control member 4 through the latch 6, and the control member 4 drives the entire fixed block 2 to rotate.

[0041] 2. One end of the connecting rod 5 is movably connected to the fixed block 2, and the connecting rod 5 can rotate radially relative to the fixed block 2. The other end of the connecting rod 5 is connected to the control member 4 through the latch 6; the control member 4 drives the entire connecting rod 5 to rotate relative to the fixed block 2.

[0042] In this embodiment, the control member 4 may have a variety of shapes, preferably the following structure:

[0043] Structure 1: The control member 4 is rectangular, the chamber of the accommodating groove 12 is square and matches the control member 4, and the front and rear ends of the accommodating groove 12 are through-set, and the two ends of the control member 4 extend out of the front and rear ends of the accommodating groove 12. A plurality of anti-slip protrusions 42 are provided at the bottom of the two outer ends of the control member 4. When the control member 4 is moved outward by the anti-slip protrusions 42, it is not easy to slide and the operation stability is good.

[0044] Structure 2: The control member 4 is triangular, the chamber of the accommodating groove 12 is triangular and matched with the control member 4, and the end of the triangular accommodating groove 12 is through-set, and the end of the control member 4 extends out of the end of the accommodating groove 12. A plurality of anti-slip protrusions 42 are provided at the bottom of each outer end of the control member 4. When any two anti-slip protrusions 42 are selected to move the control member 4 outward, it is not easy to slide and the operating stability is good.

[0045] That is, the outer contour of the control member 4 is set to the same shape as the cavity contour of the receiving groove 12, and the end of the control member 4 is extended out of the end of the receiving groove 12, so that when the user needs to push the control member 4 outward, the protruding end of the control member 4 can be used for operation.

[0046] In order to prevent the operator's fingers from interfering with the receiving seat 11 when the control member 4 is pulled out and rotated, the outer contour of the receiving seat 11 is cylindrical, so that the operator's fingers can rotate around the outer periphery of the receiving seat 11 when rotating.

[0047] During operation, the user pushes the control member 4 outward through the anti-slip protrusion 42, and the control member 4 drives the fixing block 2 to retract into the mounting groove 14. When the control member 4 extends out from the inner cavity of the accommodating groove 12, the control member 4 is rotated to cause the control member 4 and the accommodating groove 12 to be misaligned, so that the lower end surface of the control member 4 abuts against the upper end surface of the accommodating groove 12. At this time, the fixing block 2 remains in a state of being retracted into the mounting groove 14. When it is necessary to protrude outward for fixing, the control member 4 is rotated and reset, and the elastic member 3 is reset and drives the control member 4 back into the accommodating groove 12.

[0048] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ladder fixing device, characterized in that: The invention comprises a fixing seat (1) fixed to a ladder support and a fixing block (2) movably mounted on the fixing seat (1); the fixing seat (1) is provided with an elastic member (3) abutting against the fixing block (2) and driving the fixing block (2) to move outward; the fixing block (2) reciprocates along the axial direction of the elastic member (3); the fixing block (2) is connected with a control member (4); the fixing seat (1) is provided with a receiving groove (12) for receiving the control member (4); when the control member (4) is received in the receiving groove (12), the elastic member (3) drives the fixing block (2) to protrude outward; when the lower end surface of the control member (4) abuts against the upper end surface of the receiving groove (12), the control member (4) drives the fixing block (2) to compress the elastic member (3) and keep it in an inwardly contracted state.

2. A ladder fixing device according to claim 1, characterized in that: The outer end surface of the fixing seat (1) protrudes outward to form a receiving seat (11), the upper end of the receiving seat (11) is provided with a receiving groove (12), the lower end of the receiving seat (11) is provided with a mounting groove (14), and the fixing block (2) is arranged in the mounting groove (14).

3. A ladder fixing device according to claim 2, characterized in that: The cross section of the installation groove (14) is circular, and the outer wall of the bottom of the fixing block (2) extends outward to form a circular hanging platform (21), and the hanging platform (21) is adapted to the installation groove (14).

4. A ladder fixing device according to claim 1, characterized in that: The fixed block (2) and the control member (4) are connected via a connecting rod (5), and the elastic member (3) is sleeved outside the connecting rod (5); one end of the elastic member (3) abuts against the fixed block (2), and the other end of the elastic member (3) abuts against the bottom surface of the mounting groove (14).

5. A ladder fixing device according to claim 4, characterized in that: One end of the connecting rod (5) is connected to the fixing block (2), and the other end of the connecting rod (5) is detachably connected to the control component (4) via a latch (6).

6. A ladder fixing device according to any one of claims 1 to 5, characterized in that: The control member (4) is rectangular, the chamber of the accommodating groove (12) is square and matches the control member (4), and the front and rear ends of the accommodating groove (12) are penetrated, and the two ends of the control member (4) extend out of the front and rear ends of the accommodating groove (12).

7. A ladder fixing device according to any one of claims 1 to 5, characterized in that: The control member (4) is triangular in shape, the chamber of the accommodating groove (12) is triangular in shape and matches the control member (4), and the end of the triangular shape of the accommodating groove (12) is arranged to penetrate, and the end of the control member (4) extends out of the end of the accommodating groove (12).

8. A ladder fixing device according to any one of claims 1 to 5, characterized in that: A plurality of anti-slip protrusions (42) are arranged at the bottom of the outer end of the control member (4).

9. A ladder fixing device according to claim 2, characterized in that: The outer contour of the accommodating seat (11) is cylindrical.

10. A ladder fixing device according to claim 1, characterized in that: The control member (4) is provided with a groove (41), and the accommodating groove (12) is provided with a convex column (13) protruding upward and matching with the groove (41).

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