Front-end guiding and limiting structure

Abstract

The utility model provides a front end guiding and limiting structure, which relates to the technical field of pulley sliding doors and comprises a fixed base, a hinge seat is mounted in the middle of the top surface of the fixed base, a bearing pulley is rotatably mounted on the hinge seat, and a height adjusting component matched with the hinge seat for use is mounted on the bottom surface of the fixed base. The height adjusting assembly comprises an embedded box fixedly installed on the bottom face of the fixed base, and a driven gear and a driving gear are rotationally installed on the bottom face of an inner cavity of the bottom face of the embedded box. The rotating head is rotated through the wrench, the rotating rod on the bottom face of the rotating head drives the driving gear to rotate, then the driven gear is driven to rotate, and the driven gear rotates to drive the bolt rod in the inner cavity of the internal thread cylinder to rotate. Only the internal thread cylinder can slide up and down along with the rotation of the bolt rod, so that the purpose of adjusting the height of the bearing pulley mounted on the hinge seat is achieved, and the mounting adaptability of the bearing pulley is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pulley sliding door, more specifically, particularly relate to a front end guide limiting structure. BACKGROUND

[0002] The sliding rail pulley of the sliding door is a key component for normal use of the sliding door, which can be divided into an upper load-bearing pulley and a lower load-bearing pulley. The upper load-bearing pulley is installed at the upper part of the sliding door, and the weight of the door is mainly borne by the upper sliding rail. The lower load-bearing pulley is installed at the bottom of the door, and the weight of the door is supported by the lower sliding rail. The upper load-bearing pulley has the advantage that the lower space of the door is relatively neat and less likely to accumulate dust, but the load-bearing capacity of the sliding rail and the pulley is relatively high. The lower load-bearing pulley is relatively more stable and is suitable for relatively heavy doors.

[0003] The lower load-bearing pulley of the existing sliding door is fixedly installed on the ground, and the height of the bottom surface of the sliding door from the ground cannot be adjusted. Due to the dimensional height difference in the installation of the sliding door, it is difficult to reach the appropriate load-bearing height of the load-bearing pulley at the bottom surface of the sliding door after installation, and the height needs to be adjusted again, which is very troublesome, and the adaptability needs to be improved.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a front end guide limiting structure is provided to achieve the purpose of having more practical value. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a front end guide limiting structure to solve the above problems.

[0006] The purpose and effect of the front end guide limiting structure are achieved by the following specific technical means:

[0007] A front end guide limiting structure, comprising a fixed base, a hinge seat is installed in the middle of the top surface of the fixed base, a load-bearing pulley is rotatably installed on the hinge seat, and a height adjusting assembly is installed on the bottom surface of the fixed base.

[0008] Further, the height adjusting assembly comprises a pre-buried box fixedly installed on the bottom surface of the fixed base, a driven gear and a driving gear are rotatably installed on the bottom surface of the inner cavity of the pre-buried box, and the driving gear and the driven gear are meshingly arranged.

[0009] Further, the height adjusting assembly further comprises a bolt rod installed on the middle of the top surface of the driven gear, an internal thread cylinder is threadedly installed on the bolt rod, a rotating rod is fixedly installed on the middle of the top surface of the driving gear, a rotating head is installed on the top surface of the rotating rod, and the rotating head is located on the top surface of the fixed base.

[0010] Further, a first sliding hole is formed in the middle of the fixed base for sliding use of the inner threaded cylinder, and the bottom surface of the inner threaded cylinder is fixedly connected with the bottom surface of the hinged seat.

[0011] Further, a rotating hole is formed in the fixed base, and the rotating rod is rotatably arranged in the rotating hole.

[0012] Further, two limiting columns are symmetrically arranged on the top surface of the fixed base, and a second sliding hole is formed in the hinged seat for sliding use of the limiting column.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a height adjusting assembly of a fixed base, which comprises a fixed base, a hinged seat, a limiting column, a first sliding hole, a rotating hole, a second sliding hole and a bearing pulley. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model.

[0016] Figure 2 It is the top surface structure schematic diagram of the fixed base of the utility model.

[0017] Figure 3 It is the embedded box sectional view of the utility model.

[0018] Figure 4 It is the fixed base and height adjusting assembly schematic diagram of the utility model.

[0019] In the drawing, the corresponding relationship between the component name and the drawing number is as follows:

[0020] 1, fixed base; 101, limiting column; 102, first sliding hole; 103, rotating hole;

[0021] 2, hinged seat; 201, second sliding hole;

[0022] 3, bearing pulley;

[0023] 4, height adjusting assembly; 401, embedded box; 402, driving gear; 403, driven gear; 404, rotating rod; 405, bolt rod; 406, rotating head; 407, inner threaded cylinder. DETAILED DESCRIPTION

[0024] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is merely meant to provide a better understanding of the subject matter described herein and can be changed in ways not specifically discussed which will achieve the desired outcome. Various examples can omit, substitute, or add various procedures or components as appropriate. Also, it should be understood that embodiments can be comprised of one or more of the disclosed elements from any or all of the examples disclosed herein. The foregoing summary is not intended to define every implementation that can be claimed but rather serves to provide notice as to the subject matter not claimed.

[0025] EMBODIMENT

[0026] As shown in the accompanying Figure 1 to the accompanying Figure 4 : a front end guide limiting structure, comprising a fixed base 1, a hinge seat 2 is installed in the middle of the top surface of the fixed base 1, a load bearing pulley 3 is rotatably installed on the hinge seat 2, a height adjusting assembly 4 used in cooperation with the hinge seat 2 is installed on the bottom surface of the fixed base 1;

[0027] The height adjusting assembly 4 comprises a pre-buried box 401 fixedly installed on the bottom surface of the fixed base 1, a driven gear 403 and a driving gear 402 are rotatably installed on the bottom surface of the inner cavity of the pre-buried box 401, and the driving gear 402 and the driven gear 403 are meshingly arranged;

[0028] The height adjusting assembly 4 further comprises a bolt rod 405 installed on the middle of the top surface of the driven gear 403, a female threaded cylinder 407 is threadedly installed on the bolt rod 405, a rotating rod 404 is fixedly installed on the middle of the top surface of the driving gear 402, a rotating head 406 is installed on the top surface of the rotating rod 404, and the rotating head 406 is located on the top surface of the fixed base 1;

[0029] A first sliding hole 102 matching the sliding use of the female threaded cylinder 407 is formed in the middle of the fixed base 1, and the bottom surface of the female threaded cylinder 407 is fixedly connected with the bottom surface of the hinge seat 2;

[0030] A rotating hole 103 is formed on the fixed base 1, and the rotating rod 404 is rotatably arranged in the rotating hole 103;

[0031] At this point, the rotating head 406 is rotated, so that the rotating rod 404 on the bottom surface of the rotating head 406 drives the driving gear 402 to rotate, and in turn drives the driven gear 403 to rotate, the driven gear 403 drives the bolt rod 405 in the inner cavity of the female threaded cylinder 407 to rotate, the female threaded cylinder 407 slides up and down with the rotation of the bolt rod 405, and in turn achieves the purpose of adjusting the height of the load bearing pulley 3.

[0032] As shown in the accompanying Figure 1 to the accompanying Figure 4As shown, in some embodiments, the top surface of the fixed base 1 is symmetrically mounted with two limiting columns 101, and the hinged seat 2 is provided with a second sliding hole 201 matching the sliding use of the limiting column 101;

[0033] On the other hand, the hinged seat 2 and the inner threaded cylinder 407 mounted on the bottom surface thereof are rotated, and the stable support after the auxiliary hinged seat 2 is lifted.

[0034] The specific use mode and function of the embodiment are as follows: a pit capable of accommodating the pre-buried box 401 is formed on the ground on which the fixed base 1 is mounted, and then the fixed base 1 is fixedly mounted on the ground through bolts and nuts, and further the height of the hinged seat 2 and the load-bearing pulley 3 thereon is adjusted according to the height of the sliding groove of the installed movable door.

[0035] The height adjustment mode can be as follows: the wrench is used to rotate the rotating head 406, so that the rotating rod 404 at the bottom surface of the rotating head 406 drives the driving gear 402 to rotate, and then drives the driven gear 403 to rotate, the rotation of the driven gear 403 drives the bolt rod 405 in the inner cavity of the inner threaded cylinder 407 to rotate, since the inner threaded cylinder 407 is fixedly mounted on the bottom surface of the hinged seat 2 and is limited to rotate by the limiting column 101, only the inner threaded cylinder 407 can slide up and down with the rotation of the bolt rod 405, so as to adjust the height of the load-bearing pulley 3 mounted on the hinged seat 2, and further improve the installation adaptability of the load-bearing pulley.

[0036] The embodiments of the utility model are given for the purpose of example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A front end guide limiting structure, characterized by: The utility model relates to a height-adjustable fixed base, including fixed base (1), the top surface middle part of fixed base (1) is equipped with articulated seat (2), articulated seat (2) is rotatably installed with load bearing pulley (3), the bottom surface of fixed base (1) is equipped with height adjusting assembly (4) of cooperation articulated seat (2) uses.

2. The front end guide limiting structure of claim 1, wherein: The height-adjustable fixed base, the height adjusting assembly (4) includes fixed installation in the bottom surface of fixed base (1) preburied box (401), the bottom surface inner chamber bottom surface of preburied box (401) is rotatably installed with driven gear (403) and driving gear (402), driving gear (402) and driven gear (403) are engaged and arranged.

3. The front end guide stop structure of claim 2, wherein: The height-adjustable fixed base, the height adjusting assembly (4) further includes the bolt rod (405) of installation in the top surface middle part of driven gear (403), the threaded installation of screw rod (405) has internal thread cylinder (407), the top surface middle part of driving gear (402) is fixedly installed with rotating rod (404), the top surface of rotating rod (404) is installed with rotating head (406), and rotating head (406) is located on the top surface of fixed base (1).

4. The front end guide limit structure of claim 3, wherein: The height-adjustable fixed base, the middle part of fixed base (1) is equipped with the first sliding hole (102) of matching internal thread cylinder (407) sliding use, and the bottom surface of internal thread cylinder (407) is fixedly connected with the bottom surface of articulated seat (2).

5. The front end guide limit structure of claim 4, wherein: The height-adjustable fixed base, rotating hole (103) is set up on fixed base (1), and rotating rod (404) is rotatably arranged in rotating hole (103).

6. The front end guide limit structure of claim 5, wherein: The height-adjustable fixed base, the top surface of fixed base (1) is symmetrically equipped with two limit posts (101), and the second sliding hole (201) of matching limit post (101) sliding use is set up on articulated seat (2).

Images