Locking christmas tree foot

Abstract

The Christmas tree base is secured by a base, which includes a mating chassis and a cover. The chassis includes a circular base plate and an annular sidewall on the base plate. One end of the outer wall of the chassis is recessed inward to form a first mounting groove, and a second mounting groove is also provided on the inner edge of the chassis. The inner sides of the first and second mounting grooves form a receiving cavity for the chassis. A downwardly recessed fixing groove is provided in the middle of the top of the cover, which is opposite to the receiving cavity. The two opposite ends of the inner wall of the fixing groove are provided with a first assembly port and a second assembly port. A fixing device is provided between the chassis and the cover. The fixing device includes a first fixing tube and a second fixing tube respectively provided inside the first and second assembly ports. The front ends of the first and second fixing tubes are provided with fixing teeth. An adjustment device is provided at the lower end of the first fixing tube. The adjustment device is a foot-operated ratchet stepping device. The tree base is fixed by stepping on the pedal to drive the fixing teeth on one side, making the fixing method more convenient.

Description

Technical Field

[0001] This utility model relates to a method for locking Christmas tree feet. Background Technology

[0002] Christmas trees are the most important decorations for Christmas. Generally, Christmas trees are placed upright, so a base needs to be installed at the bottom of the tree to fix the trunk. Most Christmas tree bases on the market require manual tightening of screws and nuts, which is time-consuming and laborious. In addition, water needs to be added to the base to ensure the moisture supply of the Christmas tree, but because the trunk is blocked, it is impossible to observe the water level at the base, which may lead to overfilling or underfilling, causing the leaves of the Christmas tree to fall off. Utility Model Content

[0003] This utility model provides a method for locking Christmas tree feet.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] The Christmas tree base is secured by a base, which includes a mating chassis and a cover. The chassis includes a circular base plate and an annular sidewall on the base plate. One end of the outer wall of the chassis is recessed inward to form a first mounting groove. A second mounting groove is also provided on the inner edge of the chassis. The inner sides of the first and second mounting grooves form a receiving cavity for the chassis. A downwardly recessed fixing groove is provided in the middle of the top of the cover. The fixing groove is opposite to the receiving cavity. A first assembly port and a second assembly port are provided at opposite ends of the inner wall of the fixing groove. A fixing device is provided between the chassis and the cover. The fixing device includes a first fixing tube and a second fixing tube respectively provided inside the first and second assembly ports. The front ends of the first and second fixing tubes are provided with fixing teeth. An adjustment device is provided at the lower end of the first fixing tube. The adjustment device is a foot-operated ratchet stepping device.

[0006] Preferably, the fixing toothed piece is connected to the front end of the first fixing tube and the second fixing tube respectively by means of a connecting piece at its rear end using a pin.

[0007] Preferably, an extension groove is provided on one side of the top of the fixing groove, and special paper that changes color when exposed to water is placed in the extension groove.

[0008] Preferably, the fixing groove has several pointed protrusions arranged inside along the direction of the fixing teeth on both sides.

[0009] Preferably, the first assembly opening extends through the outer wall of the cover and has a channel extending downward at its lower end. The channel is connected to the first mounting groove and also extends to the outer wall of the cover. An opening is provided on the outer wall of the cover at the lower end of the channel, and the inner side of the opening is the first mounting groove. The width of the channel is smaller than the width of the first assembly opening and the opening. The second assembly opening also extends through the outer wall of the cover and its rear end is connected to the second mounting groove.

[0010] Preferably, the adjustment device includes a ratchet rack, a mounting bracket, a drive plate, a first pawl, a second pawl, and a pedal; the ratchet rack is fixed to the lower end of the first fixed tube and cooperates with the channel, and the ratchet teeth of the ratchet rack are arranged outward.

[0011] Preferably, the mounting bracket is disposed inside the first mounting slot, and the mounting bracket consists of only a base plate and two side plates perpendicular to the base plate, forming an open mounting slot in the middle; the drive plate is formed by two identical mounting blocks arranged opposite each other and fixed at the top; a pin passes through the mounting bracket, the drive plate and the first pawl in sequence, fixing the first pawl to the front end inside the drive plate, and simultaneously fixing the front end of the drive plate to the front end of the mounting slot, the top of the first pawl engaging with the ratchet teeth at the front end of the ratchet rack; a torsion spring is also provided at the front end inside the mounting slot, the lower end of the torsion spring being fixed to the bottom end of the mounting bracket, and the upper end abutting against the first pawl.

[0012] Preferably, the second pawl is fixed to the extended edge at the top of the rear end of the mounting bracket by a pin, the second pawl is located above the drive plate, and the tail of the second pawl is provided with a tension spring connected to the drive plate.

[0013] Preferably, the rear end of the drive plate is located outside the opening, and the rear end of the drive plate has an elongated waist hole. An adjustment plate is also provided inside the drive plate. The rear end of the adjustment plate is fixed to the elongated waist hole by a connecting rod. The diameter of the connecting rod is smaller than the width of the elongated waist hole, and caps are provided at both ends of the connecting rod to prevent it from falling off. When the connecting rod is located at the rear end of the elongated waist hole, the front end of the adjustment plate is opposite to the rear end of the second pawl. When the connecting rod is located at the front end of the elongated waist hole, the top end of the adjustment plate abuts against the rear end of the second pawl.

[0014] Preferably, a fixing port is also provided on the cover at the top of the second assembly port. The fixing port is opposite to the second mounting groove. Multiple through holes are provided on the upper and lower walls of the second fixing tube, which are arranged at intervals and opposite to each other. The through holes are opposite to the fixing port. The pin passes through the fixing port and the through holes from the outside of the fixing port to the second mounting groove.

[0015] Compared with the prior art, this utility model locks the Christmas tree feet by setting a first assembly port and a second assembly port at both ends of the fixing groove to install the fixing device. The fixing device uses opposing fixing teeth to cooperate with the Christmas tree feet and fix the Christmas tree feet in the fixing groove. One end of the fixing device is equipped with an adjustment device to adjust the distance between the two fixing teeth. The adjustment device is a foot-operated ratchet stepping device, which can drive one side of the fixing teeth to fix the tree feet by stepping on the pedal, making the fixing method more convenient. In addition, an extension groove is set on one side of the top of the fixing groove, and a special paper that changes color when it comes into contact with water is placed in the extension groove. According to the color change of the extension groove, it can more promptly remind the user that the water is full or that the fixing groove is low on water. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the Christmas tree foot locking mechanism of this utility model.

[0017] Figure 2 This is a first exploded view of the Christmas tree foot locking mechanism of this utility model.

[0018] Figure 3 This is a second exploded view of the Christmas tree foot locking mechanism of this utility model.

[0019] Figure 4 This is a partially exploded view of the Christmas tree foot locking mechanism of this utility model.

[0020] Figure 5 This is a cross-sectional view of the Christmas tree foot locking mechanism of this utility model. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 5 As shown, the locking Christmas tree foot includes a base 1, which is generally circular. The base 1 includes a chassis 11 and a cover 12 that cooperate with each other. The chassis 11 includes a circular base plate and an annular sidewall provided on the base plate. One end of the outer wall of the chassis 11 is recessed inward to form a first mounting groove 111. The first mounting groove 111 has a square cross-section. A second mounting groove 112 is also provided on the inner edge of the chassis 11. The second mounting groove 112 is arc-shaped and extends to both sides of the first mounting groove 111. The inner sides of the first mounting groove 111 and the second mounting groove 112 are the receiving cavity 113 of the chassis 11.

[0023] The top center of the cover 12 has a recessed fixing groove 121, which is opposite to the receiving cavity 113. The inside of the fixing groove 121 is used to fix the Christmas tree feet and to serve as a water storage cavity. An extension groove 127 extends outward from the top side of the fixing groove 121. A special paper that changes color when it comes into contact with water is placed in the extension groove 127. When water is added to the fixing groove 121, it will seep into the extension groove 127 when it is almost full, and the extension groove 127 will change color to remind the user. When the color of the extension groove 127 changes, it reminds the user that water needs to be added to ensure that the Christmas tree will not lose leaves due to lack of water.

[0024] The inner wall of the fixing groove 121 is provided with a first assembly port 122 and a second assembly port 123 at opposite ends. The cross-sections of the first assembly port 122 and the second assembly port 123 are both square.

[0025] The first assembly port 122 extends through to the outer wall of the cover 12 and the lower end extends downward to form a channel 124. The channel 124 is connected to the first mounting groove 111 and also extends to the outer wall of the cover 12. An opening 125 is provided on the outer wall of the cover 12 at the lower end of the channel 124. The inner side of the opening 125 is the first mounting groove 111. The width of the channel 124 is smaller than the width of the first assembly port 122 and the opening 125.

[0026] The second assembly port 123 also extends through to the outer wall of the cover 12, and its rear end is connected to the second mounting groove 112. A fixing port 126 is also provided on the cover at the top of the second assembly port 123, and the fixing port 126 is opposite to the second mounting groove 112.

[0027] A fixing device 2 is provided between the chassis 11 and the cover 12. The fixing device 2 includes a first fixing tube 21 and a second fixing tube 22 respectively disposed inside the first assembly port 122 and the second assembly port 123.

[0028] The first fixing tube 21 and the second fixing tube 22 are both provided with fixing teeth 23 at their front ends. The fixing teeth 23 at both ends are arranged facing each other. The fixing teeth 23 at both ends cooperate with the Christmas tree foot to fix the Christmas tree foot in the fixing groove 121. The fixing teeth 23 are connected to the front ends of the first fixing tube 21 and the second fixing tube 22 respectively by means of the connecting piece 231 at their rear end, thereby adjusting the angle of the fixing teeth 23.

[0029] The second fixing tube 22 has multiple spaced, vertically aligned through holes 221 on its upper and lower walls. These through holes 221 are aligned with the fixing opening 126. The second fixing tube 22 can be further secured using the pin 4. Different through holes 221 and fixing openings 126 can be used to adjust the tube to accommodate different tree diameters.

[0030] An adjustment device 5 is provided at the lower end of the first fixed tube 21. The adjustment device 5 is a foot-operated ratchet stepping device. The adjustment device 5 includes a ratchet 51, a mounting bracket 52, a drive plate 53, a first pawl 54, a second pawl 55, and a pedal 56. The ratchet 51 is fixed at the lower end of the first fixed tube 21 and cooperates with the channel 124. The ratchet teeth of the ratchet 51 are arranged outward.

[0031] Mounting bracket 52 is located inside the first mounting slot 111 and consists only of a base plate and two side plates perpendicular to the base plate, forming an open mounting slot 521 in the middle. The drive plate 53 is formed by two identical mounting blocks arranged opposite each other and fixed at the top. A pin is used to install the mounting bracket 52, drive plate 53 and first pawl 54 in sequence, fixing the first pawl 54 to the front end inside the drive plate 53, and fixing the front end of the drive plate 53 to the front end of the mounting slot 521. The top of the first pawl 54 engages with the ratchet teeth at the front end of the ratchet rack 51. A torsion spring 57 is also provided at the front end inside the mounting slot 521. The lower end of the torsion spring 57 is fixed to the bottom end of the mounting bracket 52, and the upper end abuts against the first pawl 54, thereby ensuring that the top of the first pawl 54 always engages with the ratchet rack 51.

[0032] The second pawl 55 is fixed to the extended edge at the top rear end of the mounting bracket 52 using a pin. The second pawl 55 is located above the drive plate 53, and a tension spring 58 is provided at the tail of the second pawl 55 and connected to the drive plate 53. Specifically, the other end of the tension spring 58 is fixed to the connecting shaft inside the drive plate 53. The top of the second pawl 55 engages with the ratchet teeth at the rear end of the ratchet rack 51. The second pawl 55 is fixed to the top of the mounting bracket 52 and the tension spring 58 between it and the drive plate 53 can ensure that the top of the second pawl 55 always engages with the ratchet rack 51.

[0033] The rear end of the drive plate 53 is located outside the opening 125. The rear end of the drive plate 53 is provided with an elongated waist hole 531. An adjustment plate 59 is also provided inside the drive plate 53. The rear end of the adjustment plate 59 is fixed to the elongated waist hole 531 by a connecting rod. The diameter of the connecting rod is smaller than the width of the elongated waist hole 531, and caps are provided at both ends of the connecting rod to prevent it from falling off. When the connecting rod is located at the rear end of the elongated waist hole 531, the front end of the adjustment plate 59 is opposite to the rear end of the second pawl 55.

[0034] The pedal 56 is fixed to the top outer side of the rear end of the drive plate 53.

[0035] The working principle of the adjustment mechanism 5 is as follows: When the foot pedal 56 is pressed, the rear end of the drive plate 53 moves downward and the front end moves upward, driving the first pawl 54 upward. Since the first pawl 54 abuts against the ratchet rack 51, the first pawl 54 will move downward. When the first pawl 54 moves downward, it will push the steep slope of the ratchet rack forward. At the same time, under the action of the tension spring 58, the second pawl 55 moves downward and upward, always cooperating with the ratchet rack 51. When the ratchet rack 51 is pushed forward by the first pawl 54 to a ratchet, the second pawl 55 will lock onto the next ratchet along the gentle slope of the ratchet rack, realizing the forward movement of the ratchet rack 51, thereby driving the fixed tooth plate 23 on one side to fix the tree foot. At the same time, under the action of the tension spring 58, after the foot pedal 56 is released, the foot pedal 56 will automatically return to its original position.

[0036] When disassembly is required, first manually move the connecting rod at the rear end of the elongated waist hole 531 forward, causing the adjusting plate 59 to move forward. The top of the adjusting plate 59 abuts against the tail end of the second pawl 55. Pull the pedal 56 upward, causing the front end of the drive plate 53 to move downward and the rear end to move upward, causing the first pawl 54 to move downward and disengage from the ratchet rack. At the same time, the top end of the adjusting plate 59 moves downward and the rear end to move upward, and also causes the second pawl 55 to be in a state of front end downward and rear end upward. The second pawl 55 no longer abuts against the ratchet rack 51, and the first fixing tube 21 connected to the ratchet rack 51 is in a free state. Therefore, the first fixing tube 21 and the fixing tooth 23 connected to the first fixing tube 21 can be pushed backward to disengage from the tree root.

[0037] The fixing groove 121 has several pointed protrusions 1211 arranged inside along the direction of the fixing teeth 23 on both sides. The pointed protrusions 1211 interact with the bottom of the tree base and can be embedded in the bottom of the tree base. Their function is to make the Christmas tree slide back and forth only along the pointed protrusions 1211 in the corresponding fixing teeth 23, and avoid moving or twisting towards the sides of the fixing teeth 23. The height arrangement of the pointed protrusions 1211 can be set according to actual needs. For example, all the pointed protrusions can be set to the same height, or the middle pointed protrusion 1211 can be set to be higher and the two sides lower, or the middle pointed protrusion 1211 can be set to be lower and the two sides higher, so as to better prevent the tree trunk from sliding.

[0038] This utility model locks the Christmas tree feet by installing a fixing device 2 at both ends of a fixing groove 121 with a first mounting port 122 and a second mounting port 123. The fixing device 2 uses opposing fixing teeth 23 to cooperate with the Christmas tree feet and fix the Christmas tree feet in the fixing groove 121. One end of the fixing device 2 is equipped with an adjustment device 5 to adjust the distance between the two fixing teeth 23. The adjustment device 5 is a foot-operated ratchet stepping device, which can drive one side of the fixing teeth 23 to fix the tree feet by stepping on the pedal 56, making the fixing method more convenient. In addition, an extension groove 127 is provided on one side of the top of the fixing groove 121, and a special paper that changes color when exposed to water is placed in the extension groove 127. According to the color change of the extension groove 127, the user can be reminded more promptly that the water is full or that the fixing groove 121 is short of water.

[0039] Finally, it should be noted that the above embodiments only illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking Christmas tree base, comprising a base (1), said base (1) comprising a mating chassis (11) and a cover (12), characterized in that, The chassis (11) includes a circular base plate and an annular sidewall on the base plate. One end of the outer wall of the chassis (11) is recessed inward to form a first mounting groove (111). A second mounting groove (112) is also provided on the inner edge of the chassis (11). The inner sides of the first mounting groove (111) and the second mounting groove (112) form a receiving cavity (113) for the chassis (11). A downwardly recessed fixing groove (121) is provided in the middle of the top of the cover (12). The fixing groove (121) is opposite to the receiving cavity (113). The two opposite ends of the inner wall of the fixing groove (121) are provided with first assembly ports. (122) and second assembly port (123), a fixing device (2) is provided between the chassis (11) and the cover (12). The fixing device (2) includes a first fixing tube (21) and a second fixing tube (22) respectively provided inside the first assembly port (122) and the second assembly port (123). The front ends of the first fixing tube (21) and the second fixing tube (22) are provided with fixing teeth (23), and the fixing teeth (23) at both ends are arranged facing each other. The lower end of the first fixing tube (21) is provided with an adjustment device (5). The adjustment device (5) is a foot-operated ratchet stepping device.

2. The locking Christmas tree leg according to claim 1, characterized in that, The fixed toothed piece (23) is connected to the front end of the first fixed tube (21) and the second fixed tube (22) respectively by means of a connecting piece (231) at its rear end.

3. The locking Christmas tree foot according to claim 1, characterized in that, An extension groove (127) is provided on one side of the top of the fixing groove (121), and a special paper that changes color when exposed to water is placed in the extension groove (127).

4. The locking Christmas tree leg according to claim 1, characterized in that, The fixing groove (121) has several pointed protrusions (1211) arranged inside along the direction of the fixing teeth (23) on both sides.

5. The locking Christmas tree foot according to claim 1, characterized in that, The first assembly port (122) extends through the outer wall of the cover (12) and has a channel (124) extending downward at its lower end. The channel (124) is connected to the first mounting groove (111). The channel (124) also extends to the outer wall of the cover (12). An opening (125) is provided on the outer wall of the cover (12) at the lower end of the channel (124). The inner side of the opening (125) is the first mounting groove (111). The width of the channel (124) is smaller than the width of the first assembly port (122) and the opening (125). The second assembly port (123) also extends through the outer wall of the cover (12) and has its rear end connected to the second mounting groove (112).

6. The locking Christmas tree foot according to claim 5, characterized in that, The adjustment device (5) includes a ratchet rack (51), a mounting bracket (52), a drive plate (53), a first pawl (54), a second pawl (55), and a pedal (56); the ratchet rack (51) is fixed to the lower end of the first fixed tube (21) and cooperates with the channel (124), and the ratchet teeth of the ratchet rack (51) are arranged outward.

7. The locking Christmas tree foot according to claim 6, characterized in that, The mounting bracket (52) is located inside the first mounting groove (111). The mounting bracket (52) consists of only a base plate and two side plates perpendicular to the base plate, forming an open mounting groove (521) in the middle. The drive plate (53) consists of two identical mounting blocks arranged opposite each other and fixed at the top. The first pawl (54) is fixed inside the front end of the drive plate (53) by a pin passing through the mounting bracket (52), the drive plate (53) and the first pawl (54) in sequence. At the same time, the front end of the drive plate (53) is fixed to the front end of the mounting groove (521). The top of the first pawl (54) engages with the ratchet teeth at the front end of the ratchet rack (51). A torsion spring (57) is also provided inside the front end of the mounting groove (521). The lower end of the torsion spring (57) is fixed to the bottom end of the mounting bracket (52), and the upper end abuts against the first pawl (54).

8. The locking Christmas tree foot according to claim 7, characterized in that, The second pawl (55) is fixed to the extended edge at the top of the rear end of the mounting bracket (52) by a pin. The second pawl (55) is located above the drive plate (53), and a tension spring (58) is provided at the tail of the second pawl (55) to connect with the drive plate (53).

9. The locking Christmas tree foot according to claim 8, characterized in that, The rear end of the drive plate (53) is located outside the opening (125). The rear end of the drive plate (53) is provided with an elongated waist hole (531). An adjustment plate (59) is also provided inside the drive plate (53). The rear end of the adjustment plate (59) is fixed to the elongated waist hole (531) by a connecting rod. The diameter of the connecting rod is smaller than the width of the elongated waist hole (531), and caps are provided at both ends of the connecting rod to prevent it from falling off. When the connecting rod is located at the rear end of the elongated waist hole (531), the front end of the adjustment plate (59) is opposite to the rear end of the second pawl (55). When the connecting rod is located at the front end of the elongated waist hole (531), the top end of the adjustment plate (59) abuts against the rear end of the second pawl (55).

10. The locking Christmas tree foot according to any one of claims 1-9, characterized in that, A fixing port (126) is also provided on the top cover of the second assembly port (123). The fixing port (126) is opposite to the second mounting groove (112). Multiple through holes (221) are arranged at intervals and opposite to each other on the upper and lower walls of the second fixing tube (22). The through holes (221) are opposite to the fixing port (126). The pin (4) passes from the outside of the fixing port (126) through the fixing port (126) and the through hole (221) to the second mounting groove (112).

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